Stephen H. Flax, M.D.
Dermatology Physician · Winchester, VA
Stephen H. Flax, M.D. is a dermatology physician with a practice address in Winchester, Virginia, and NPI 1376514596, issued on Jan 27, 2006. Check the license (Virginia 0101056865, as entered in NPPES) on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.
- Name
- Stephen H. Flax
- Credential
- M.D.
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- 0101056865 VA
Self-reported in NPPES; status is on the state search - Practice location
- 1514 Amherst St, Winchester, VA 22601
- Phone
- (540) 667-4499
- Enumerated
- Jan 27, 2006
- Record last updated
- Aug 26, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (540) 722-4172
- Medicaid IDs
- 5900003000 WV
005901570 VA - Medicare enrollment
- Enrolled (PECOS I20120120000066); accepts Medicare assignment
- Medical or professional school
- Albert Einstein College Of Medicine Of Yeshiva University, 1985
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 422 in Virginia → Look up another NPI →
Also registered at 1514 Amherst St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Maria Bogaert, M.D.Dermatology Physician1790756534
- Lauren FredricksonSchool Psychologist1457084238
- Michael Mathieu, M.D.Dermatology Physician1215908223
- Frederick Wenzel, M.D.Dermatology Physician1962473199
Verify Stephen H. Flax in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVirginia Department of Health Professions
Search for license 0101056865Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% more Medicare Part D claims than the average dermatology physician in 2024
902 Medicare Part D claims for 365 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.
Most prescribed
- Triamcinolone Acetonide138 claims
- Cephalexin130 claims
- Methotrexate71 claims
- Doxycycline Hyclate70 claims
- Clobetasol Propionate59 claims
- Ketoconazole48 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 practice group's MIPS final score for 2023 (Medicare payment program): 66.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $17.28
1 payment: food and beverage; the largest payer was Amgen Inc. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Premier Dermatology PCAshburn, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephen H. Flax among 422 dermatology physician records in Virginia
Stephen H. Flax, M.D. is one of 422 dermatology physician records with a practice address in Virginia. 83% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 57% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated1985 · median 2007 among the 311 with a school on file
- Record last updated2019 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in Virginia
There are 422 dermatology physician records in Virginia.
All 422 in Virginia → Every provider in Winchester → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Maria Bogaert, M.D.Winchester, VA 226011790756534
- Michael Mathieu, M.D.Winchester, VA 226011215908223
- Frederick Wenzel, M.D.Winchester, VA 226011962473199
- Kathryn Steuer, MDBerryville, VA 226111568517506
- Leilei Huffman, MDStafford, VA 225561225167554
- Connie Chung, MDCulpeper, VA 227011396952255
- Terri Morris, M.D., PH.D.Fredericksburg, VA 224081194812776
- Robert Broder, M.D.Fredericksburg, VA 224011982635157
Common questions
What is Stephen H. Flax, M.D.'s NPI number?
Stephen H. Flax, M.D.'s National Provider Identifier (NPI) is 1376514596, issued on Jan 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephen H. Flax, M.D. located?
The NPPES record lists a practice address at 1514 Amherst St, Winchester, VA, 22601. Phone: (540) 667-4499. Providers update this record themselves, so call before visiting.
How can I verify Stephen H. Flax, M.D.'s license?
NPPES lists Virginia license number 0101056865, 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 Stephen H. Flax, M.D. prescribe under Medicare Part D?
In 2024, Stephen H. Flax, M.D. had 902 Medicare Part D claims for 365 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
What is Stephen H. Flax, M.D.'s MIPS final score?
The 2023 MIPS final score is 66.4 of 100, reported for the practice group. 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.