Thomas Joseph Hornyak, M.D., PH.D.
Dermatology Physician · Bethesda, MD
Thomas Joseph Hornyak, M.D., PH.D. is a dermatology physician with a practice address in Bethesda, Maryland, and NPI 1306980602, issued on Feb 19, 2007. Check the license on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Thomas Joseph Hornyak
- Credential
- M.D., PH.D.
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- 4301073444 MI
Self-reported in NPPES; status is on the state search - Practice location
- 10 Center Dr, Bethesda, MD 20892
- Phone
- (301) 451-1926
- Enumerated
- Feb 19, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (301) 496-5370
- Medicare enrollment
- Enrolled (PECOS I20111118000363); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 1992
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 341 in Maryland → Look up another NPI →
Also registered at 10 Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jeasmine Aizvera, LCSW-CClinical Social Worker1962727925
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- Fatima Al-Saygh, MDClinical Genetics (M.D.) Physician1750935383
Verify Thomas Joseph Hornyak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of PhysiciansCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average dermatology physician in 2024
31 Medicare Part D claims, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D.
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): 100 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).
Bills Medicare through one group practice
- University OF Maryland Dermatologists PABaltimore, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thomas Joseph Hornyak among 341 dermatology physician records in Maryland
Thomas Joseph Hornyak, M.D., PH.D. is one of 341 dermatology physician records with a practice address in Maryland. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 45% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1992 · median 2005 among the 241 with a school on file
- Record last updated2007 · 51% 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 Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in Maryland
There are 341 dermatology physician records in Maryland.
All 341 in Maryland → Every provider in Bethesda → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Isaac Brownell, MD, PHDBethesda, MD 208921710010814
- Heidi Kong, M.D.Bethesda, MD 208921346380623
- Maria Turner, M.D.Bethesda, MD 208921639405426
- Kathryn Barbante, M.D.Bethesda, MD 208891386084762
- James Cox, M.D.Bethesda, MD 208891770723256
- Caitlin Fink, D.O.Bethesda, MD 208891093022915
- Rachel Flint, MDBethesda, MD 208891508500190
- Ariel Gelman, M.D.Bethesda, MD 208891023491776
Common questions
What is Thomas Joseph Hornyak, M.D., PH.D.'s NPI number?
Thomas Joseph Hornyak, M.D., PH.D.'s National Provider Identifier (NPI) is 1306980602, issued on Feb 19, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Joseph Hornyak, M.D., PH.D. located?
The NPPES record lists a practice address at 10 Center Dr, Bethesda, MD, 20892. Phone: (301) 451-1926. Providers update this record themselves, so call before visiting.
How can I verify Thomas Joseph Hornyak, M.D., PH.D.'s license?
Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Thomas Joseph Hornyak, M.D., PH.D. prescribe under Medicare Part D?
In 2024, Thomas Joseph Hornyak, M.D., PH.D. had 31 Medicare Part D claims; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
What is Thomas Joseph Hornyak, M.D., PH.D.'s MIPS final score?
The 2023 MIPS final score is 100 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.