Active NPI 1598859076 Individual Practitioner Male Practitioner

Dr. Darren M Kowalski , MD

Surgery • Bend, OR

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Darren Kowalski, MD is a certified Surgery practicing in Bend, OR. With approximately 30 years of clinical experience since graduating from Oregon Health Sciences University School Of Medicine in 1996, Dr. Kowalski delivers high-quality medical care to the local community at 1501 NE MEDICAL CENTER DR.

Dr. Kowalski is affiliated with Bend Memorial Clinic Pc and accepts Medicare assignment.

Frequently performed procedures and clinical services include ultrasound of both sides of head and neck blood flow, ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers, removal of polyps or growths of large bowel using an endoscope with mechanical snare. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1501 Ne Medical Center Dr

Bend, OR 977016051

Telephone 5413822811

Associated Practice Facility / Clinic

🏢 Bend Memorial Clinic Llp Facility NPI 1174581060

Medicare Profile & Education

Medical School

Oregon Health Sciences University School Of Medicine

Graduation Year

1996

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Bend, OR

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

30 Yrs +8.5 yrs vs City Avg

City Avg: 21.5 Yrs

State Avg: 23.3 Yrs

Regional Practice Density

25 Specialists

Practicing in Bend, OR (555 Statewide)

Telehealth Adoption Rate

4.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

77.3% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Kowalski (30 Years) 30 Yrs

Bend Specialty Average (21.5 Years) 21.5 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93880 Ultrasound of both sides of head and neck blood flow	215	215	$647.00	$186.56
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	115	104	$389.00	$117.89
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	64	64	$1515.00	$240.30
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	58	50	$382.07	$126.15
45380 Biopsy of large bowel using an endoscope	57	57	$1442.00	$155.21
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	51	51	$1123.00	$178.10
99213 Established patient office or other outpatient visit, typically 15 minutes	48	38	$255.50	$88.72
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	46	46	$571.74	$164.82
76706 Ultrasound scan of abdominal aorta	41	41	$391.07	$106.25
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	35	35	$372.23	$109.73
93975 Complete ultrasound of abdomen and pelvis artery and vein blood flow	30	30	$895.00	$261.67
93978 Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts	29	28	$606.00	$177.98
93922 Ultrasound study of arm and leg arteries	29	29	$277.00	$79.57
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	24	24	$1246.00	$79.13
49505 Repair of groin hernia (5 years or older)	24	24	$1904.17	$525.77
36415 Insertion of needle into vein for collection of blood sample	24	22	$30.00	$8.65
93970 Ultrasound study of arm or leg veins with compression and maneuvers	22	22	$627.00	$185.32
80053 Blood test, comprehensive group of blood chemicals	21	21	$27.00	$10.04
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	20	19	$20.00	$7.61
93923 Complete ultrasound study of arm and leg arteries	17	17	$429.00	$119.48
46600 Diagnostic examination of the anus using an endoscope	15	11	$332.00	$116.05
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	14	12	$154.43	$55.84

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93880 Ultrasound of both sides of head and neck blood flow	166	166	$647.00	$187.26
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	94	80	$389.00	$116.95
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	80	72	$351.00	$124.75
45380 Biopsy of large bowel using an endoscope	71	70	$1442.00	$124.74
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	71	71	$1515.00	$242.72
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	62	62	$530.00	$158.72
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	60	60	$348.00	$107.50
99213 Established patient office or other outpatient visit, typically 15 minutes	53	46	$239.00	$88.14
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	48	48	$1123.00	$172.86
99231 Follow-up hospital inpatient care per day, typically 15 minutes	36	18	$128.00	$48.11
36415 Insertion of needle into vein for collection of blood sample	35	33	$11.60	$7.17
80053 Blood test, comprehensive group of blood chemicals	29	27	$27.00	$10.35
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	29	27	$20.00	$7.61
49505 Repair of groin hernia (5 years or older)	28	28	$1925.93	$526.20
36482 Chemical destruction of incompetent vein of arm or leg, accessed through the skin using imaging guidance	24	16	$7072.00	$1648.26
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	22	22	$145.00	$55.15
76706 Ultrasound scan of abdominal aorta	21	21	$364.00	$105.38
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	19	19	$1246.00	$83.92
93970 Ultrasound study of arm or leg veins with compression and maneuvers	17	16	$627.00	$184.91
46600 Diagnostic examination of the anus using an endoscope	17	16	$332.00	$113.61
76937 Ultrasonic guidance for blood vessel access	13	13	$48.00	$15.53
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	13	13	$3736.00	$316.53
37799 Blood vessel procedure	12	11	$4499.00	$35.65
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	11	11	$443.00	$126.50
93978 Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts	11	11	$606.00	$176.60
93975 Complete ultrasound of abdomen and pelvis artery and vein blood flow	11	11	$895.00	$261.33
93923 Complete ultrasound study of arm and leg arteries	11	11	$429.00	$120.68
47562 Removal of gallbladder using an endoscope	11	11	$2313.00	$623.30

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93880 Ultrasound of both sides of head and neck blood flow	98	98	$647.00	$189.77
87635 Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen	84	82	$116.00	$51.05
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	77	74	$389.00	$116.31
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	75	75	$530.00	$160.54
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	64	52	$351.00	$125.01
45380 Biopsy of large bowel using an endoscope	63	63	$1442.00	$153.86
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	47	47	$1123.00	$178.12
99213 Established patient office or other outpatient visit, typically 15 minutes	44	37	$239.00	$88.30
36415 Insertion of needle into vein for collection of blood sample	41	37	$7.00	$2.96
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	38	38	$1515.00	$236.53
U0003 Infectious agent detection by nucleic acid (dna or rna); severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (coronavirus disease [covid-19]), amplified probe technique, making use of high throughput technologies as described by cms-2020-01-r	36	36	$200.00	$73.63
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	35	35	$348.00	$108.46
U0005 Infectious agent detection by nucleic acid (dna or rna); severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (coronavirus disease [covid-19]), amplified probe technique, cdc or non-cdc, making use of high throughput technologies, completed within	35	35	$50.00	$24.54
80053 Blood test, comprehensive group of blood chemicals	34	32	$27.00	$10.43
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	33	32	$20.00	$7.67
49505 Repair of groin hernia (5 years or older)	30	30	$1888.93	$519.39
93970 Ultrasound study of arm or leg veins with compression and maneuvers	29	28	$627.00	$186.80
93923 Complete ultrasound study of arm and leg arteries	25	25	$429.00	$112.45
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	21	21	$1246.00	$92.92
99231 Follow-up hospital inpatient care per day, typically 15 minutes	19	11	$128.00	$37.15
46600 Diagnostic examination of the anus using an endoscope	12	12	$332.00	$120.05

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
87635 Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen	221	210	$167.90	$51.31
93880 Ultrasound of both sides of head and neck blood flow	151	151	$647.00	$195.54
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	143	126	$389.00	$120.05
99213 Established patient office or other outpatient visit, typically 15 minutes	73	55	$239.00	$89.36
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	72	66	$351.00	$125.97
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	71	71	$530.00	$163.96
45380 Biopsy of large bowel using an endoscope	71	70	$1442.00	$134.88
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	55	55	$348.00	$109.55
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	49	48	$1515.00	$244.18
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	43	43	$1130.42	$181.08
93970 Ultrasound study of arm or leg veins with compression and maneuvers	42	41	$627.00	$188.04
93975 Complete ultrasound of abdomen and pelvis artery and vein blood flow	39	39	$895.00	$267.77
99231 Follow-up hospital inpatient care per day, typically 15 minutes	27	16	$128.00	$37.38
93923 Complete ultrasound study of arm and leg arteries	27	27	$429.00	$111.00
46221 Removal of external hemorrhoids by rubber banding	24	17	$950.00	$286.41
36415 Insertion of needle into vein for collection of blood sample	23	21	$7.00	$2.89
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	22	22	$1246.00	$89.23
36482 Chemical destruction of incompetent vein of arm or leg, accessed through the skin using imaging guidance	22	11	$7072.00	$1853.57
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	20	20	$20.00	$7.77
46600 Diagnostic examination of the anus using an endoscope	19	18	$332.00	$118.72
93924 Ultrasound study of arteries of both legs at rest and exercise	18	18	$530.00	$152.54
80053 Blood test, comprehensive group of blood chemicals	18	18	$27.00	$10.56
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	18	18	$666.00	$216.60
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	18	18	$3736.00	$306.98
76937 Ultrasonic guidance for blood vessel access	15	15	$48.00	$13.62
93926 Ultrasound of one leg arteries or artery grafts	14	14	$483.00	$124.66
49505 Repair of groin hernia (5 years or older)	13	13	$1828.00	$503.81
76706 Ultrasound scan of abdominal aorta	12	12	$364.00	$108.09
93925 Ultrasound of leg arteries or artery grafts	12	12	$823.00	$248.71

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	132	120	$389.00	$119.61
93880 Ultrasound of both sides of head and neck blood flow	116	116	$647.00	$196.32
99213 Established patient office or other outpatient visit, typically 15 minutes	77	59	$239.00	$73.84
45380 Biopsy of large bowel using an endoscope	57	57	$1442.00	$146.75
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	56	56	$530.00	$160.69
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	39	39	$348.00	$106.18
99202 New patient office or other outpatient visit, typically 20 minutes	36	36	$246.00	$75.04
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	34	34	$1515.00	$257.14
93970 Ultrasound study of arm or leg veins with compression and maneuvers	30	29	$627.00	$192.68
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	27	26	$351.00	$107.83
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	25	25	$1123.00	$183.55
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito	25	25	$185.00	$5.47
46600 Diagnostic examination of the anus using an endoscope	25	23	$332.00	$102.31
49505 Repair of groin hernia (5 years or older)	23	23	$1907.48	$542.53
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	20	20	$145.00	$44.61
46221 Removal of external hemorrhoids by rubber banding	20	13	$950.00	$272.99
93975 Complete ultrasound of abdomen and pelvis artery and vein blood flow	20	20	$895.00	$265.45
36415 Insertion of needle into vein for collection of blood sample	18	15	$7.00	$2.98
87635 Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen	17	17	$178.00	$51.31
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	17	17	$1246.00	$91.12
93923 Complete ultrasound study of arm and leg arteries	17	17	$429.00	$112.96
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	16	13	$20.00	$7.72
76706 Ultrasound scan of abdominal aorta	15	15	$364.00	$112.41
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	12	11	$3736.00	$338.08
93924 Ultrasound study of arteries of both legs at rest and exercise	12	12	$530.00	$155.37
80053 Blood test, comprehensive group of blood chemicals	12	11	$27.00	$10.51
76937 Ultrasonic guidance for blood vessel access	12	11	$48.00	$14.52

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	154	131	$388.92	$118.41
93880 Ultrasound of both sides of head and neck blood flow	144	143	$647.00	$197.84
99213 Established patient office or other outpatient visit, typically 15 minutes	104	83	$239.00	$72.61
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito	88	88	$185.00	$5.55
45380 Biopsy of large bowel using an endoscope	84	84	$1442.00	$149.05
99202 New patient office or other outpatient visit, typically 20 minutes	62	62	$245.92	$74.69
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	47	47	$1515.00	$255.14
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	43	43	$529.79	$159.58
36415 Insertion of needle into vein for collection of blood sample	37	35	$7.00	$2.94
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	35	35	$348.00	$104.86
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	33	27	$350.97	$106.10
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	32	31	$22.00	$8.46
46600 Diagnostic examination of the anus using an endoscope	31	30	$332.00	$91.68
80053 Blood test, comprehensive group of blood chemicals	30	29	$29.93	$11.51
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	29	29	$1123.00	$185.79
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	28	28	$1245.93	$103.74
93970 Ultrasound study of arm or leg veins with compression and maneuvers	25	25	$626.84	$190.86
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	24	20	$145.00	$43.48
93975 Complete ultrasound of abdomen and pelvis artery and vein blood flow	18	18	$894.78	$274.85
93923 Complete ultrasound study of arm and leg arteries	17	17	$428.88	$118.75
36482 Chemical destruction of incompetent vein of arm or leg, accessed through the skin using imaging guidance	15	12	$7307.73	$2085.19
49505 Repair of groin hernia (5 years or older)	15	15	$1986.43	$538.27
93922 Ultrasound study of arm and leg arteries	13	13	$276.92	$73.84
93978 Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts	13	13	$606.00	$180.49
76706 Ultrasound scan of abdominal aorta	12	12	$364.00	$111.73
44204 Partial removal of large bowel using an endoscope	11	11	$5422.00	$1546.99
37609 Tying or biopsy of temporal artery (side of skull)	11	11	$1130.14	$322.34

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	118	97	$367.56	$117.95
93880 Ultrasound of both sides of head and neck blood flow	114	114	$618.71	$197.64
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito	81	80	$12.93	$5.48
99213 Established patient office or other outpatient visit, typically 15 minutes	70	61	$224.40	$70.94
45380 Biopsy of large bowel using an endoscope	64	64	$1444.30	$159.56
99202 New patient office or other outpatient visit, typically 20 minutes	36	36	$228.80	$73.26
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	34	34	$510.40	$157.96
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	30	30	$1630.20	$257.68
93970 Ultrasound study of arm or leg veins with compression and maneuvers	29	29	$602.55	$192.56
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	29	29	$332.20	$105.28
93978 Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts	29	29	$696.30	$180.03
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	26	23	$134.20	$42.82
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	23	23	$1100.52	$186.29
36415 Insertion of needle into vein for collection of blood sample	23	21	$9.00	$2.81
99153 Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes	22	16	$33.41	$10.56
36482 Chemical destruction of incompetent vein of arm or leg, accessed through the skin using imaging guidance	21	17	$6628.01	$2106.04
93975 Complete ultrasound of abdomen and pelvis artery and vein blood flow	20	20	$1111.00	$277.69
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	18	17	$331.10	$105.52
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	17	17	$31.98	$8.96
76706 Ultrasound scan of abdominal aorta	17	17	$286.72	$92.09
80053 Blood test, comprehensive group of blood chemicals	16	16	$43.47	$12.15
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	15	15	$3679.50	$302.37
76937 Ultrasonic guidance for blood vessel access	15	15	$110.35	$14.27
49505 Repair of groin hernia (5 years or older)	15	14	$1733.01	$546.31
93922 Ultrasound study of arm and leg arteries	14	14	$273.90	$80.84
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	12	12	$1245.20	$112.02
93923 Complete ultrasound study of arm and leg arteries	11	11	$430.10	$120.64

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	97	84	$366.92	$115.05
93880 Ultrasound of both sides of head and neck blood flow	76	75	$616.79	$191.87
99213 Established patient office or other outpatient visit, typically 15 minutes	66	59	$224.40	$70.06
93922 Ultrasound study of arm and leg arteries	59	58	$273.90	$71.12
45380 Biopsy of large bowel using an endoscope	58	58	$1444.30	$166.76
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	58	44	$134.20	$41.97
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito	58	58	$15.40	$5.44
99202 New patient office or other outpatient visit, typically 20 minutes	48	48	$228.80	$71.70
93978 Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts	36	36	$696.30	$178.49
36415 Insertion of needle into vein for collection of blood sample	35	35	$9.00	$2.94
80053 Blood test, comprehensive group of blood chemicals	31	31	$43.29	$14.20
93970 Ultrasound study of arm or leg veins with compression and maneuvers	29	28	$599.40	$190.74
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	29	29	$31.85	$10.45
36475 Destruction of insufficient vein of arm or leg, accessed through the skin	28	22	$5217.30	$1447.78
93926 Ultrasound of one leg arteries or artery grafts	27	27	$465.51	$127.04
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	27	27	$1630.20	$249.11
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	24	24	$332.20	$102.73
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	23	23	$1095.39	$185.14
76706 Ultrasound scan of abdominal aorta	21	21	$286.72	$90.80
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	19	19	$510.40	$159.22
93975 Complete ultrasound of abdomen and pelvis artery and vein blood flow	18	18	$1111.00	$264.17
93925 Ultrasound of leg arteries or artery grafts	18	17	$762.81	$248.00
37799 Blood vessel procedure	18	14	$1052.40	$134.04
46600 Diagnostic examination of the anus using an endoscope	17	17	$275.00	$86.15
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	17	16	$1245.20	$92.48
99153 Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes	16	15	$33.41	$10.52
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	16	14	$331.10	$100.36
93923 Complete ultrasound study of arm and leg arteries	14	14	$430.10	$121.13
99152 Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutes	11	11	$156.30	$12.08

Medical Specialties & State Licenses

CMS Verified: 2021-04-06

Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License OR MD22898

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

287812 (OR)

Commercial Insurance / Payer ID Medicare Railroad

00834437 (OR)

Hospital & Practice Group Affiliations

Bend Memorial Clinic Pc

1501 Ne Medical Ctr Dr, Bend, OR 977016051

Phone: 5413822811

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners

Jonathan Mcfadyen , NP

Nurse Practitioner

NPI 1003136334

Nurse Practitioner

Dr. Edward Tarbet , MD

Family Medicine

NPI 1003845330

Doctor of Medicine (M.D.)

Tonya Koopman , NP

Nurse Practitioner - Family

NPI 1013006931

Nurse Practitioner

Dr. Scott O'connor , MD

Ophthalmology

NPI 1013924513

Doctor of Medicine (M.D.)

Dr. Michael Harris , MD

Internal Medicine

NPI 1023047503

Doctor of Medicine (M.D.)

Dr. Rick Goldstein , MD

Specialist

NPI 1023129913

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events

✅

NPI Profile Active April 15, 2013

NPI status registered as active in NPPES database

📍

Updated Practice Location April 15, 2013

Registered at 1501 NE MEDICAL CENTER DR, BEND, OR 977016051 (Tel: 5413822811)

📍

Updated Business Mailing Address April 15, 2013

Registered at 1501 NE MEDICAL CENTER DR, BEND, OR 977016051 (Tel: 5413822811)

👤

Provider Name / Credentials Updated April 15, 2013

Recorded as DARREN KOWALSKI, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) April 15, 2013

Surgery (License #MD22898 in OR)

🟢

Initial NPI Registration & Enumeration October 02, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

0 Reviews

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NPI Administrative Meta

NPI Number: 1598859076

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: October 02, 2006

Last Update: April 06, 2021

Sole Proprietor: No

Update or Correct Profile

Mailing Address

1501 Ne Medical Center Dr

Bend, OR 977016051

Phone: 5413822811

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.