Active NPI 1790765592 Individual Practitioner Male Practitioner

Dr. Gregory Lee Stamper , DO

Internal Medicine • Williston, FL

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Gregory Stamper, DO is a certified Internal Medicine practicing in Williston, FL. With approximately 38 years of clinical experience since graduating from Nova Southeastern College Of Osteo Medicine in 1988, Dr. Stamper delivers high-quality medical care to the local community at 130 SW 7TH ST.

Dr. Stamper is affiliated with Orlando Family Physicians 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, insertion of needle into vein for collection of blood sample, annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

130 Sw 7th St

Williston, FL 326962404

Telephone 3525285801

Fax 3525286019

Associated Practice Facility / Clinic

🏢 Nature Coast Medical Group Pa Facility NPI 1275683682

Medicare Profile & Education

Medical School

Nova Southeastern College Of Osteo Medicine

Graduation Year

1988

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Williston, FL

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

38 Yrs -1.0 yrs vs City Avg

City Avg: 39.0 Yrs

State Avg: 26.5 Yrs

Regional Practice Density

2 Specialists

Practicing in Williston, FL (10650 Statewide)

Telehealth Adoption Rate

50.0% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

17.8% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Stamper (38 Years) 38 Yrs

Williston Specialty Average (39.0 Years) 39.0 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
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	779	330	$143.00	$124.35
36415 Insertion of needle into vein for collection of blood sample	615	302	$15.00	$8.65
99213 Established patient office or other outpatient visit, typically 15 minutes	270	156	$105.00	$88.10
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	85	85	$151.00	$125.45
G0444 Annual depression screening, 5 to 15 minutes	77	77	$24.00	$17.95
81002 Urinalysis, manual test	64	46	$10.00	$3.41
90662 Influenza vaccine split virus, preservative free	61	60	$70.00	$68.60
G0008 Administration of influenza virus vaccine	61	60	$20.00	$19.60
99496 Transitional care management services for problem of high complexity	26	21	$315.00	$269.38
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	14	14	$223.00	$163.24
99495 Transitional care management services for problem of at least moderate complexity	13	12	$235.00	$199.27
87426 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus	13	13	$55.00	$34.62

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	633	306	$15.00	$8.40
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	620	297	$143.00	$122.25
99213 Established patient office or other outpatient visit, typically 15 minutes	285	155	$105.00	$86.51
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	95	95	$151.00	$122.17
G0444 Annual depression screening, 5 to 15 minutes	89	89	$24.00	$17.20
90662 Influenza vaccine split virus, preservative free	76	76	$70.00	$68.60
G0008 Administration of influenza virus vaccine	76	76	$20.00	$19.60
81002 Urinalysis, manual test	67	42	$10.00	$3.41
87426 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus	29	29	$55.00	$33.43
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	18	15	$37.00	$21.87
93000 Routine ekg using at least 12 leads including interpretation and report	15	15	$50.00	$13.99
99496 Transitional care management services for problem of high complexity	13	13	$315.00	$263.09
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	11	11	$228.00	$156.93

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	670	332	$143.00	$125.27
36415 Insertion of needle into vein for collection of blood sample	652	326	$15.00	$2.96
99213 Established patient office or other outpatient visit, typically 15 minutes	339	193	$105.00	$88.86
87426 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus	111	80	$55.00	$43.25
G0008 Administration of influenza virus vaccine	88	87	$20.00	$19.60
90662 Influenza vaccine split virus, preservative free	87	86	$70.00	$68.54
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	86	86	$151.00	$126.00
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	68	49	$37.00	$22.35
G0444 Annual depression screening, 5 to 15 minutes	60	60	$24.00	$17.46
81002 Urinalysis, manual test	56	37	$10.00	$3.44
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	24	24	$223.00	$167.00
99496 Transitional care management services for problem of high complexity	21	19	$315.00	$269.04

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	322	229	$15.00	$3.00
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	196	154	$143.00	$128.63
99213 Established patient office or other outpatient visit, typically 15 minutes	146	97	$105.00	$90.83
87426 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus	106	78	$55.00	$45.23
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	70	57	$37.00	$22.18
G0008 Administration of influenza virus vaccine	53	53	$20.00	$16.59
90662 Influenza vaccine split virus, preservative free	52	52	$70.00	$65.26
81002 Urinalysis, manual test	47	34	$10.00	$3.48
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	28	28	$151.00	$127.12
G0444 Annual depression screening, 5 to 15 minutes	18	18	$22.67	$17.24

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	278	200	$15.00	$2.95
99213 Established patient office or other outpatient visit, typically 15 minutes	259	164	$91.77	$73.34
81002 Urinalysis, manual test	41	26	$10.00	$3.28
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	18	18	$143.00	$113.67
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	15	15	$137.13	$102.41

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	631	291	$15.00	$2.93
99213 Established patient office or other outpatient visit, typically 15 minutes	489	239	$91.00	$72.05
81002 Urinalysis, manual test	58	41	$10.00	$3.31
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	46	40	$135.00	$107.55
G0008 Administration of influenza virus vaccine	41	41	$10.00	$9.80
90662 Influenza vaccine split virus, preservative free	41	41	$60.00	$54.89
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	25	25	$142.00	$114.34
80305 Testing for presence of drug, read by direct observation	22	20	$15.00	$12.35
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	16	16	$211.00	$164.31
99496 Transitional care management services for problem of high complexity	16	16	$210.00	$196.47
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	16	16	$55.00	$43.71
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	12	12	$80.00	$52.60

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	552	265	$15.00	$2.94
99213 Established patient office or other outpatient visit, typically 15 minutes	420	223	$91.00	$67.17
G0008 Administration of influenza virus vaccine	57	56	$8.95	$8.77
90662 Influenza vaccine split virus, preservative free	51	49	$39.99	$39.19
81002 Urinalysis, manual test	34	28	$10.00	$3.41
80305 Testing for presence of drug, read by direct observation	27	24	$15.00	$13.19
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	16	13	$132.25	$100.47
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	12	12	$142.00	$108.36

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	571	249	$15.00	$2.94
99213 Established patient office or other outpatient visit, typically 15 minutes	458	221	$91.00	$69.34
81002 Urinalysis, manual test	57	34	$10.00	$3.43
G0008 Administration of influenza virus vaccine	46	45	$10.00	$9.80
90662 Influenza vaccine split virus, preservative free	42	41	$43.39	$42.49
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	31	26	$135.00	$102.28

Medical Specialties & State Licenses

CMS Verified: 2025-11-11

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License FL OS5742

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

370388603 (FL)

Commercial Insurance / Payer ID Bcbs

80401 (FL)

Hospital & Practice Group Affiliations

Orlando Family Physicians Llc

130 Sw 7th St, Williston, FL 326962404

Phone: 3525285801

Practice Associates & Co-Workers

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

6 Associated Practitioners

Dr. David Wise , MD

Family Medicine

NPI 1265476063

Doctor of Medicine (M.D.)

Tyler Egan , PA-C

Physician Assistant

NPI 1508352915

Physician Assistant (Certified)

Cortney Aubertine , APRN

Nurse Practitioner - Family

NPI 1649993551

Advanced Practice Registered Nurse

Carolyn Dahbour , ARNP

Nurse Practitioner - Primary Care

NPI 1700820594

Advanced Registered Nurse Practitioner

Dr. Donald Mccoy , DO

Internal Medicine

NPI 1740260033

Doctor of Osteopathic Medicine (D.O.)

Rita Arrington , ARNP

Nurse Practitioner - Family

NPI 1881656361

Advanced Registered Nurse Practitioner

Career & Practice History Timeline

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

8 Historical Events

📍

Updated Business Mailing Address May 16, 2024

Registered at 425 W COLONIAL DR STE 303, ORLANDO, FL 328046863 (Tel: 3213326947)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) August 07, 2023

Internal Medicine (License #OS5742 in FL)

✅

NPI Profile Active November 24, 2014

NPI status registered as active in NPPES database

📍

Updated Practice Location November 24, 2014

Registered at 130 SW 7TH ST, WILLISTON, FL 326962404 (Tel: 3525285801)

📍

Updated Business Mailing Address November 24, 2014

Registered at 130 SW 7TH ST, WILLISTON, FL 326962404 (Tel: 3525285801)

👤

Provider Name / Credentials Updated November 24, 2014

Recorded as GREGORY STAMPER, DO

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) November 24, 2014

Internal Medicine (License #OS0005742 in FL)

🟢

Initial NPI Registration & Enumeration January 18, 2006

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1790765592

Entity Type:

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

Enumeration Date: January 18, 2006

Last Update: November 11, 2025

Sole Proprietor: No

Update or Correct Profile

Mailing Address

425 W Colonial Dr Ste 303

Orlando, FL 328046863

Phone: 3213326947

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.