Gregory J. Biernacki, MD
Family Medicine Physician · Williamsburg, VA
Gregory J. Biernacki, MD is a family medicine physician with a practice address in Williamsburg, Virginia, and NPI 1194789909, issued on Apr 17, 2006. Check the license (Virginia 0101041954, as entered in NPPES) on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.
- Name
- Gregory J. Biernacki
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 0101041954 VA
Self-reported in NPPES; status is on the state search - Practice location
- 4374 New Town Ave, Williamsburg, VA 23188
- Phone
- (757) 220-2795
- Enumerated
- Apr 17, 2006
- Record last updated
- Feb 2, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (757) 259-8797
- Medicaid ID
- 010111480 VA
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 4,137 in Virginia → Look up another NPI →
Also registered at 4374 New Town Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jennifer Altman, M.D.Pediatrics Physician1780658260
- Marie Barthelemy, NPFamily Nurse Practitioner1689638082
- Pamela Biernacki, NPFamily Nurse Practitioner1255394003
- Christopher Boquist, MDFamily Medicine Physician1962466524
- Jennifer Dean, M.D.Family Medicine Physician1265628093
- Erin Desrosiers, PAPhysician Assistant1659564557
Verify Gregory J. Biernacki in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVirginia Department of Health Professions
Search for license 0101041954Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Most of these Medicare Part D claims are vaccines, 100% of the cost of the top drugs
52 Medicare Part D claims for 44 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 85% of claims.
Most prescribed
Pharmacies often give vaccines under a standing order that names one clinician, and CMS counts every such claim under that clinician's NPI. These claims are therefore not a measure of this clinician's own prescribing.
- Shingrix15 claims
- Arexvy13 claims
- Abrysvo11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 98.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Gregory J. Biernacki among 4,137 family medicine physician records in Virginia
Gregory J. Biernacki, MD is one of 4,137 family medicine physician records with a practice address in Virginia. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 50% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2011 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
66 family medicine physician records list a practice address in Williamsburg
They are 66 of the 1,707 NPPES records with a practice address in Williamsburg, and 4,137 family medicine physician records in Virginia.
All 4,137 in Virginia → Every provider in Williamsburg → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- John Ball, MDWilliamsburg, VA 231881326013640
- Christopher Boquist, MDWilliamsburg, VA 231881962466524
- Christopher Ciccone, M.D.Williamsburg, VA 231881659377356
- Amna Feroze, MDWilliamsburg, VA 231881487617213
- Mary Hill, M.D.Williamsburg, VA 231881548266224
- Thomas Hoag, DOWilliamsburg, VA 231881356316640
- Janice Langer, MDWilliamsburg, VA 231881669466520
- James Majdic, DOWilliamsburg, VA 231881922073246
Common questions
What is Gregory J. Biernacki, MD's NPI number?
Gregory J. Biernacki, MD's National Provider Identifier (NPI) is 1194789909, issued on Apr 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory J. Biernacki, MD located?
The NPPES record lists a practice address at 4374 New Town Ave, Williamsburg, VA, 23188. Phone: (757) 220-2795. Providers update this record themselves, so call before visiting.
How can I verify Gregory J. Biernacki, MD's license?
NPPES lists Virginia license number 0101041954, as entered by the provider. Search the Virginia Department of Health Professions at https://dhp.virginiainteractive.org/lookup/index. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory J. Biernacki, MD prescribe under Medicare Part D?
In 2024, Gregory J. Biernacki, MD had 52 Medicare Part D claims for 44 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Gregory J. Biernacki, MD's MIPS final score?
The 2023 MIPS final score is 98.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.