Active NPI 1730166687 Individual Practitioner Male Practitioner

Dr. Mark F Berntsen , MD

Internal Medicine • Greeley, CO

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Mark Berntsen, MD is a certified Internal Medicine practicing in Greeley, CO. With approximately 33 years of clinical experience since graduating from University Of Kansas School Of Med (Kc/Wich/Sal) in 1993, Dr. Berntsen delivers high-quality medical care to the local community at 1900 16TH ST.

Dr. Berntsen is affiliated with Poudre Valley Medical Group Llc and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include established patient outpatient office visit, annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit, administration of influenza virus vaccine. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1900 16th St

Greeley, CO 806315114

Telephone 9703502438

Fax 9703502473

Associated Practice Facility / Clinic

🏢 Greeley Medical Clinic Facility NPI 1336124700

Medicare Profile & Education

Medical School

University Of Kansas School Of Med (Kc/wich/sal)

Graduation Year

1993

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Greeley, CO

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

33 Yrs +9.6 yrs vs City Avg

City Avg: 23.4 Yrs

State Avg: 23.3 Yrs

Regional Practice Density

38 Specialists

Practicing in Greeley, CO (2124 Statewide)

Telehealth Adoption Rate

28.9% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

58.5% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Berntsen (33 Years) 33 Yrs

Greeley Specialty Average (23.4 Years) 23.4 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
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	828	528	$248.76	$81.70
99213 Established patient office or other outpatient visit, typically 15 minutes	685	503	$174.02	$63.36
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	548	548	$272.00	$44.35
G0008 Administration of influenza virus vaccine	114	113	$57.24	$32.58
90662 Influenza vaccine split virus, preservative free	108	107	$104.58	$81.27
83036 Hemoglobin A1C level	68	58	$23.00	$9.38
93793 Anticoagulant management of patient taking warfarin	58	16	$27.00	$11.38
90480 Admn sarscov2 vacc 1 dose	56	50	$98.00	$43.45
91320 Sarscv2 vac 30mcg trs-suc im	56	50	$150.00	$143.03
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	49	16	$341.67	$91.87
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing	31	31	$20.00	$6.50
G0009 Administration of pneumococcal vaccine	20	20	$40.00	$32.58
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use	20	20	$526.00	$288.86
99495 Transitional care management services for problem of at least moderate complexity	16	16	$391.50	$99.23
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	11	11	$347.00	$140.26

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	746	492	$244.00	$84.33
99213 Established patient office or other outpatient visit, typically 15 minutes	745	541	$167.00	$63.44
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	509	509	$260.43	$54.15
G0008 Administration of influenza virus vaccine	135	134	$53.66	$31.04
90662 Influenza vaccine split virus, preservative free	129	128	$97.27	$71.85
93793 Anticoagulant management of patient taking warfarin	77	19	$27.00	$11.57
83036 Hemoglobin A1C level	64	58	$23.00	$9.52
91320 Sarscv2 vac 30mcg trs-suc im	36	36	$150.00	$128.48
90480 Admn sarscov2 vacc 1 dose	36	36	$98.00	$41.39
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing	32	31	$20.00	$6.38
99495 Transitional care management services for problem of at least moderate complexity	29	27	$359.00	$109.79
G0009 Administration of pneumococcal vaccine	25	25	$40.00	$31.04
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	24	15	$329.00	$92.70
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use	20	20	$521.80	$282.16
17000 Destruction of skin growth	13	13	$146.00	$63.65
0241U Respiratory infectious agent detection by rna for severe acute respiratory syndrome coronavirus 2 (covid 19), influenza a, influenza b, and respiratory syncytial virus, upper respiratory specimen, each reported as detected or not detected	12	11	$278.13	$139.78

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	835	547	$244.00	$87.60
99213 Established patient office or other outpatient visit, typically 15 minutes	710	527	$167.00	$69.00
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	347	347	$233.00	$57.70
G0008 Administration of influenza virus vaccine	165	163	$51.18	$30.26
90662 Influenza vaccine split virus, preservative free	157	155	$87.21	$68.35
93793 Anticoagulant management of patient taking warfarin	68	24	$27.00	$11.41
99495 Transitional care management services for problem of at least moderate complexity	56	47	$359.00	$107.73
G0009 Administration of pneumococcal vaccine	35	35	$40.00	$30.44
83036 Hemoglobin A1C level	34	33	$23.00	$9.61
0124A Fee covid-19 vac 13 res	32	32	$98.00	$40.02
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing	29	29	$20.00	$6.36
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	27	16	$329.00	$106.95
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	21	21	$338.00	$170.59
90686 Vaccine for influenza for administration into muscle, 0.5 ml dosage	13	13	$27.40	$21.05
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use	13	13	$512.00	$278.05
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	13	13	$222.00	$114.87
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	12	12	$221.00	$132.25
17000 Destruction of skin growth	11	11	$146.00	$69.75

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	777	555	$233.67	$132.57
99213 Established patient office or other outpatient visit, typically 15 minutes	708	547	$159.94	$93.47
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	370	370	$233.00	$135.57
G0008 Administration of influenza virus vaccine	183	181	$49.95	$17.52
90662 Influenza vaccine split virus, preservative free	179	177	$82.42	$65.19
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	86	86	$338.00	$171.50
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	65	11	$51.00	$14.61
99495 Transitional care management services for problem of at least moderate complexity	61	57	$341.15	$208.63
83036 Hemoglobin A1C level	50	48	$23.00	$9.71
G0009 Administration of pneumococcal vaccine	39	39	$40.00	$17.52
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing	29	29	$20.00	$6.84
90670 Pneumococcal vaccine for injection into muscle	23	23	$417.00	$239.91
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	17	12	$323.71	$185.25
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	15	15	$221.00	$125.52
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	14	14	$222.00	$115.06
99496 Transitional care management services for problem of high complexity	13	13	$462.00	$269.24
99442 Telephone medical discussion with physician, 11-20 minutes	12	12	$154.58	$94.02

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	731	548	$149.48	$76.72
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	636	448	$219.24	$109.98
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	435	435	$233.00	$118.34
G0008 Administration of influenza virus vaccine	212	210	$47.50	$17.13
90662 Influenza vaccine split virus, preservative free	197	196	$77.34	$60.83
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	68	12	$51.00	$14.61
99495 Transitional care management services for problem of at least moderate complexity	61	57	$326.00	$189.76
99442 Telephone medical discussion with physician, 11-20 minutes	57	51	$211.54	$76.05
93793 Anticoagulant management of patient taking warfarin	43	28	$27.00	$11.94
83036 Hemoglobin A1C level	40	39	$23.00	$9.64
G0009 Administration of pneumococcal vaccine	31	31	$40.00	$17.10
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	18	18	$221.00	$118.14
99496 Transitional care management services for problem of high complexity	18	17	$462.00	$249.32
90686 Vaccine for influenza for administration into muscle, 0.5 ml dosage	14	14	$26.25	$18.18
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	14	14	$335.43	$168.31
90670 Pneumococcal vaccine for injection into muscle	13	13	$417.00	$230.14
85610 Blood test, clotting time	12	12	$9.00	$4.20
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	11	11	$331.00	$169.37

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	1,108	753	$146.00	$75.02
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	599	438	$214.58	$109.01
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	427	427	$231.60	$117.00
93793 Anticoagulant management of patient taking warfarin	314	159	$24.82	$12.21
85610 Blood test, clotting time	280	129	$9.00	$4.28
G0008 Administration of influenza virus vaccine	245	240	$47.45	$16.80
90662 Influenza vaccine split virus, preservative free	214	210	$71.03	$54.76
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	99	15	$51.00	$16.91
36415 Insertion of needle into vein for collection of blood sample	70	70	$6.00	$2.94
G0009 Administration of pneumococcal vaccine	64	64	$40.00	$16.80
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	43	43	$217.07	$110.16
83036 Hemoglobin A1C level	38	38	$23.00	$10.57
90686 Vaccine for influenza for administration into muscle, 0.5 ml dosage	31	31	$24.89	$18.05
90670 Pneumococcal vaccine for injection into muscle	24	24	$407.00	$206.43
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	19	19	$340.74	$172.61
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	18	17	$88.67	$45.65
99495 Transitional care management services for problem of at least moderate complexity	18	18	$326.00	$165.55
99496 Transitional care management services for problem of high complexity	17	17	$462.00	$233.77
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	14	14	$329.93	$167.21
17000 Destruction of skin growth	14	14	$146.00	$66.67

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	1,312	880	$144.54	$73.64
85610 Blood test, clotting time	750	246	$9.53	$4.74
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	673	504	$212.47	$108.23
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	426	426	$229.72	$117.84
93793 Anticoagulant management of patient taking warfarin	393	197	$23.99	$12.15
G0008 Administration of influenza virus vaccine	284	280	$45.96	$20.73
90662 Influenza vaccine split virus, preservative free	213	213	$66.72	$51.89
G0009 Administration of pneumococcal vaccine	189	188	$40.00	$20.73
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	162	162	$339.04	$173.43
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	127	91	$48.95	$21.95
90670 Pneumococcal vaccine for injection into muscle	112	112	$384.78	$195.72
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	80	80	$199.71	$105.59
90686 Vaccine for influenza for administration into muscle, 0.5 ml dosage	72	71	$23.43	$18.65
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	70	13	$50.99	$20.86
99496 Transitional care management services for problem of high complexity	69	67	$459.97	$235.23
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg	57	11	$5.22	$1.96
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	23	23	$326.00	$167.46
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	17	17	$328.29	$168.10
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	15	15	$86.53	$44.50
36415 Insertion of needle into vein for collection of blood sample	14	14	$28.83	$2.94
99495 Transitional care management services for problem of at least moderate complexity	13	13	$325.15	$166.30
17000 Destruction of skin growth	13	13	$146.00	$67.72

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	1,106	761	$211.47	$107.73
99213 Established patient office or other outpatient visit, typically 15 minutes	885	638	$143.53	$73.54
85610 Blood test, clotting time	654	232	$10.00	$5.28
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	284	146	$42.19	$20.39
G0008 Administration of influenza virus vaccine	282	280	$38.04	$25.63
G0009 Administration of pneumococcal vaccine	266	265	$40.00	$25.63
90686 Vaccine for influenza for administration into muscle, 0.5 ml dosage	225	224	$20.01	$18.65
90670 Pneumococcal vaccine for injection into muscle	198	198	$327.92	$185.01
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	88	18	$50.53	$25.79
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	71	71	$175.79	$95.51
90662 Influenza vaccine split virus, preservative free	59	59	$51.13	$47.95
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg	55	11	$7.15	$2.76
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	48	48	$339.67	$171.76
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	46	46	$229.63	$116.48
99496 Transitional care management services for problem of high complexity	44	41	$456.39	$232.43
36415 Insertion of needle into vein for collection of blood sample	18	18	$6.00	$2.94
17000 Destruction of skin growth	17	16	$154.82	$67.90
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	16	16	$325.25	$165.73
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	12	12	$86.00	$44.03

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License CO 35897

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

01358977 (CO)

Commercial Insurance / Payer ID Medicare Railroad Carrier Ptan

P00944672 (CO)

Hospital & Practice Group Affiliations

Poudre Valley Medical Group Llc

6767 29th St, Greeley, CO 806345474

Phone: 9702243636

Practice Associates & Co-Workers

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

13 Associated Practitioners

Kathryn Milizio , PA-C

Physician Assistant

NPI 1023560034

Physician Assistant (Certified)

Dr. Michael Randle , MD

Internal Medicine

NPI 1124006853

Doctor of Medicine (M.D.)

Dr. Steven Loecke , MD

Internal Medicine

NPI 1265410005

Doctor of Medicine (M.D.)

Dr. Robert Cash , MD

Internal Medicine

NPI 1285611152

Doctor of Medicine (M.D.)

Dr. Donald Rademacher , MD

Internal Medicine

NPI 1306824032

Doctor of Medicine (M.D.)

Dr. Daniel Zenk , MD

Internal Medicine

NPI 1326026956

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 July 01, 2013

NPI status registered as active in NPPES database

📍

Updated Practice Location July 01, 2013

Registered at 1900 16TH ST, GREELEY, CO 806315114 (Tel: 9703502438)

📍

Updated Business Mailing Address July 01, 2013

Registered at 1900 16TH ST, GREELEY, CO 806315114 (Tel: 9703502438)

👤

Provider Name / Credentials Updated July 01, 2013

Recorded as MARK BERNTSEN, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 01, 2013

Internal Medicine (License #35897 in CO)

🟢

Initial NPI Registration & Enumeration December 30, 2005

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: 1730166687

Entity Type:

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

Enumeration Date: December 30, 2005

Last Update: July 01, 2013

Sole Proprietor: No

Update or Correct Profile

Mailing Address

1900 16th St

Greeley, CO 806315114

Phone: 9703502438

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.