Active NPI 1538197769 Individual Practitioner Male Practitioner

Dr. Frederick J Denstman , MD

Colon & Rectal Surgery • Newark, DE

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Frederick Denstman, MD is a certified Colon & Rectal Surgery practicing in Newark, DE. With approximately 47 years of clinical experience since graduating from Hahnemann University College Of Medicine in 1979, Dr. Denstman delivers high-quality medical care to the local community at 4745 OLGETOWN STANTON RD.

Dr. Denstman is affiliated with Christiana Care Health Services Inc and accepts Medicare assignment.

Frequently performed procedures and clinical services include diagnostic examination of the anus using an endoscope, removal of polyps or growths of large bowel using an endoscope with mechanical snare, established patient outpatient office visit. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

4745 Olgetown Stanton Rd
Suite 216

Newark, DE 197132074

Telephone 3027375444

Associated Practice Facility / Clinic

🏢 Colon And Rectal Surgery Associates Of Delaware Facility NPI 1245262609

Medicare Profile & Education

Medical School

Hahnemann University College Of Medicine

Graduation Year

1979

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Colon & Rectal Surgery in Newark, DE

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

47 Yrs +15.0 yrs vs City Avg

City Avg: 32.0 Yrs

State Avg: 31.7 Yrs

Regional Practice Density

6 Specialists

Practicing in Newark, DE (9 Statewide)

Telehealth Adoption Rate

16.7% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

66.8% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Denstman (47 Years) 47 Yrs

Newark Specialty Average (32.0 Years) 32.0 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
46600 Diagnostic examination of the anus using an endoscope	64	62	$114.80	$39.70
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	60	60	$816.88	$244.06
99213 Established patient office or other outpatient visit, typically 15 minutes	48	43	$110.61	$64.05
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	47	47	$513.07	$173.28
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	42	42	$560.70	$176.82
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	38	35	$211.69	$94.29
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	37	21	$231.06	$76.49
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	34	32	$107.00	$34.33
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	29	29	$379.61	$127.24
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	25	25	$560.70	$177.32
99231 Follow-up hospital inpatient care per day, typically 15 minutes	24	16	$128.09	$47.99
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	22	21	$349.32	$140.12
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	18	17	$637.77	$167.87
46221 Removal of external hemorrhoids by rubber banding	17	14	$513.57	$188.93
45378 Diagnostic exam of large bowel using a flexible endoscope	12	12	$577.62	$177.02

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
46600 Diagnostic examination of the anus using an endoscope	66	63	$111.45	$41.40
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	57	27	$222.72	$78.86
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	44	44	$826.61	$250.63
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	38	35	$246.54	$97.08
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	33	33	$606.13	$181.92
99213 Established patient office or other outpatient visit, typically 15 minutes	28	27	$141.16	$64.79
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	27	23	$610.52	$172.89
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	27	27	$546.93	$175.00
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	25	24	$392.78	$142.60
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	24	24	$110.09	$35.37
99231 Follow-up hospital inpatient care per day, typically 15 minutes	19	14	$125.42	$49.48
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	17	17	$417.83	$132.71
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	15	12	$321.18	$118.63
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	14	13	$474.97	$129.69
99221 Initial hospital inpatient care per day, typically 30 minutes	13	12	$349.23	$82.78
44145 Partial removal of large bowel and reattachment to rectum	12	11	$4225.29	$1643.24
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	12	12	$546.16	$182.23

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
46600 Diagnostic examination of the anus using an endoscope	102	92	$185.00	$126.81
99213 Established patient office or other outpatient visit, typically 15 minutes	64	53	$145.00	$92.23
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	64	64	$1609.00	$254.29
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	63	63	$1198.00	$186.02
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	55	55	$165.00	$111.91
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	51	47	$210.00	$130.15
99231 Follow-up hospital inpatient care per day, typically 15 minutes	48	12	$75.00	$38.80
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	48	48	$255.00	$169.61
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	27	11	$120.00	$71.44
45330 Diagnostic exam of lower portion of large bowel using a flexible endoscope	23	22	$300.00	$198.51
46221 Removal of external hemorrhoids by rubber banding	19	11	$470.00	$298.88
45380 Biopsy of large bowel using an endoscope	18	18	$1317.00	$140.13
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	15	13	$280.00	$183.45
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	15	15	$1198.00	$186.42
45378 Diagnostic exam of large bowel using a flexible endoscope	15	15	$1198.00	$186.43
44140 Partial removal of large bowel	12	12	$4026.00	$1368.92

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
46600 Diagnostic examination of the anus using an endoscope	111	106	$185.00	$126.94
99213 Established patient office or other outpatient visit, typically 15 minutes	89	71	$141.07	$94.26
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	73	73	$165.00	$112.96
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	65	65	$1198.00	$191.76
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	62	58	$206.61	$133.82
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	49	49	$1609.00	$257.90
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	42	42	$255.00	$173.03
99231 Follow-up hospital inpatient care per day, typically 15 minutes	34	21	$75.00	$39.01
45330 Diagnostic exam of lower portion of large bowel using a flexible endoscope	31	28	$300.00	$200.88
46221 Removal of external hemorrhoids by rubber banding	27	13	$470.00	$295.67
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	22	11	$120.00	$73.07
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	19	19	$225.00	$138.26
45378 Diagnostic exam of large bowel using a flexible endoscope	17	16	$1198.00	$177.64
45380 Biopsy of large bowel using an endoscope	14	14	$1317.00	$152.61
44140 Partial removal of large bowel	13	13	$4026.00	$1395.58
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	12	12	$340.00	$228.56
46260 Removal of multiple hemorrhoid groups	12	12	$1317.00	$505.53

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	89	72	$95.00	$77.17
46600 Diagnostic examination of the anus using an endoscope	78	74	$125.00	$107.39
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	64	58	$140.00	$112.22
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	51	51	$1609.00	$269.10
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	48	48	$215.42	$167.30
99231 Follow-up hospital inpatient care per day, typically 15 minutes	48	23	$75.00	$40.51
45330 Diagnostic exam of lower portion of large bowel using a flexible endoscope	40	38	$225.00	$182.42
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	35	35	$1198.00	$195.58
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	29	29	$196.03	$142.22
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	28	17	$97.68	$74.43
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	27	27	$155.00	$111.30
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	17	17	$265.00	$214.62
44140 Partial removal of large bowel	16	16	$4026.00	$1385.53
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	16	16	$258.13	$208.19
45378 Diagnostic exam of large bowel using a flexible endoscope	16	16	$1198.00	$195.94
99238 Hospital discharge day management, 30 minutes or less	15	15	$106.00	$75.14
99221 Initial hospital inpatient care per day, typically 30 minutes	12	11	$160.00	$104.92

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	121	94	$95.37	$75.66
46600 Diagnostic examination of the anus using an endoscope	67	63	$125.00	$98.73
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	62	62	$1609.00	$267.07
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	60	54	$140.00	$109.68
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	56	56	$1198.00	$195.28
99231 Follow-up hospital inpatient care per day, typically 15 minutes	52	26	$75.00	$40.12
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	41	41	$155.00	$110.49
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	41	41	$215.49	$167.62
45330 Diagnostic exam of lower portion of large bowel using a flexible endoscope	36	32	$225.00	$177.18
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	35	35	$265.00	$210.55
45378 Diagnostic exam of large bowel using a flexible endoscope	33	32	$1198.00	$193.44
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	26	16	$95.00	$74.06
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	25	25	$190.00	$139.54
44140 Partial removal of large bowel	23	23	$4026.00	$1357.53
45380 Biopsy of large bowel using an endoscope	18	18	$1317.00	$103.84
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	14	14	$230.00	$205.95
46260 Removal of multiple hemorrhoid groups	13	13	$1317.00	$443.80
99221 Initial hospital inpatient care per day, typically 30 minutes	12	12	$160.00	$103.52

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	124	97	$95.00	$74.32
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	71	62	$139.08	$109.18
46600 Diagnostic examination of the anus using an endoscope	67	61	$125.00	$92.21
45330 Diagnostic exam of lower portion of large bowel using a flexible endoscope	49	44	$225.00	$173.96
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	48	48	$1173.88	$192.19
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	48	26	$95.00	$74.12
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	47	47	$155.00	$110.14
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	45	44	$1599.87	$270.28
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	45	45	$265.78	$203.35
99231 Follow-up hospital inpatient care per day, typically 15 minutes	44	23	$75.00	$39.96
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	31	31	$215.00	$167.77
44140 Partial removal of large bowel	25	25	$4026.00	$1383.28
45380 Biopsy of large bowel using an endoscope	23	23	$1317.00	$119.47
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	21	21	$230.00	$206.58
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	20	20	$190.00	$139.32
45378 Diagnostic exam of large bowel using a flexible endoscope	19	19	$1198.00	$191.47
99221 Initial hospital inpatient care per day, typically 30 minutes	19	19	$160.00	$103.46
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	14	14	$185.00	$147.71
99238 Hospital discharge day management, 30 minutes or less	12	12	$100.00	$74.50

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	98	83	$95.00	$70.38
46600 Diagnostic examination of the anus using an endoscope	94	84	$125.00	$87.43
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	91	76	$140.00	$105.65
45330 Diagnostic exam of lower portion of large bowel using a flexible endoscope	66	58	$225.00	$165.65
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	51	51	$265.00	$203.08
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	50	50	$155.00	$104.75
99231 Follow-up hospital inpatient care per day, typically 15 minutes	49	26	$75.00	$38.52
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	49	49	$215.00	$159.60
46221 Removal of external hemorrhoids by rubber banding	48	24	$470.00	$267.63
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	44	44	$1609.00	$251.74
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	41	41	$1198.00	$187.15
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	30	20	$95.00	$70.73
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	27	26	$230.00	$199.02
44140 Partial removal of large bowel	24	24	$4026.00	$1330.63
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	24	23	$190.00	$134.31
45378 Diagnostic exam of large bowel using a flexible endoscope	22	22	$1198.00	$185.18
99221 Initial hospital inpatient care per day, typically 30 minutes	22	22	$160.00	$99.70
45380 Biopsy of large bowel using an endoscope	21	21	$1317.00	$97.12
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	19	12	$140.00	$102.31
44145 Partial removal of large bowel and reattachment to rectum	18	18	$4200.00	$1679.94
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	13	13	$185.00	$141.73
44120 Partial removal of small bowel	12	12	$3660.00	$878.02

Medical Specialties & State Licenses

Colon & Rectal Surgery Primary Specialty

NUCC Taxonomy Code: 208C00000X

State License DE C10002596

A colon and rectal surgeon is trained to diagnose and treat various diseases of the intestinal tract, colon, rectum, anal canal and perianal area by medical and surgical means. This specialist also deals with other organs and tissues (such as the liver, urinary and female reproductive system) involved with primary intestinal disease.

Hospital & Practice Group Affiliations

Christiana Care Health Services Inc

4735 Ogletown Stanton Rd, Newark, DE 197132072

Phone: 3026230200

Christiana Care Health Services Inc

501 W 14th St, Wilmington, DE 198011013

Christiana Care Health Services Inc

4755 Ogletown Stanton Rd, Newark, DE 197182200

Christiana Care Health Services Inc

501 W 14th St Wilmington Hospital, Wilmington, DE 198011013

Christiana Care Health Services Inc

1401 Foulk Rd, Wilmington, DE 198032764

Christiana Care Health Services Inc

501 W 14th St Fl, Wilmington, DE 198011013

Phone: 3023201300

Practice Associates & Co-Workers

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

4 Associated Practitioners

Dr. Shanthi Shakamuri , MD

Colon & Rectal Surgery

NPI 1174559371

Doctor of Medicine (M.D.)

Dr. Carey Nathan , MD

Colon & Rectal Surgery

NPI 1609802172

Doctor of Medicine (M.D.)

Dr. Joseph D'amico , MD

Colon & Rectal Surgery

NPI 1760411185

Doctor of Medicine (M.D.)

Dr. Caitlyn Costanzo , MD

Surgery

NPI 1790075737

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 November 08, 2007

NPI status registered as active in NPPES database

📍

Updated Practice Location November 08, 2007

Registered at 4745 OLGETOWN STANTON RD, SUITE 216, NEWARK, DE 197132074 (Tel: 3027375444)

📍

Updated Business Mailing Address November 08, 2007

Registered at 4745 OLGETOWN STANTON RD, SUITE 216, NEWARK, DE 197132074 (Tel: 3027375444)

👤

Provider Name / Credentials Updated November 08, 2007

Recorded as FREDERICK DENSTMAN, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) November 08, 2007

Colon & Rectal Surgery (License #C10002596 in DE)

🟢

Initial NPI Registration & Enumeration June 28, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1538197769

Entity Type:

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

Enumeration Date: June 28, 2006

Last Update: November 08, 2007

Sole Proprietor: No

Update or Correct Profile

Mailing Address

4745 Olgetown Stanton Rd, Suite 216

Newark, DE 197132074

Phone: 3027375444

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.