Mark Nadeau, MD
Family Medicine Physician · San Antonio, TX
Mark Nadeau, MD is a family medicine physician with a practice address in San Antonio, Texas, and NPI 1821009630, issued on Aug 10, 2006. Check the license (Texas G5422, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mark Nadeau
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G5422 TX
Self-reported in NPPES; status is on the state search - Practice location
- 7703 Floyd Curl Dr, San Antonio, TX 78229
- Phone
- (210) 257-1400
- Enumerated
- Aug 10, 2006
- Record last updated
- May 29, 2024
- Fax
- (210) 257-1428
- Medicaid ID
- 171089903 TX
- Medicare enrollment
- Enrolled (PECOS I20041021000467); accepts Medicare assignment
- Medical or professional school
- University Of Virginia School Of Medicine, 1982
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 11,119 in Texas → Look up another NPI →
Also registered at 7703 Floyd Curl Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sanaa AbidStudent in an Organized Health Care Education/Training Program1215710983
- Parham AbolhassaniStudent in an Organized Health Care Education/Training Program1831010651
Verify Mark Nadeau in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license G5422Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average family medicine physician in 2024
518 Medicare Part D claims for 112 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 24 claims were for opioids.
Most prescribed
- Lisinopril43 claims
- Atorvastatin Calcium31 claims
- Amlodipine Besylate21 claims
- Fluticasone Propionate19 claims
- Famotidine15 claims
- Metformin Hcl Er14 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.
Bills Medicare through one group practice
- University OF Texas Health Science Center AT San AntonioSan Antonio, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Nadeau among 11,119 family medicine physician records in Texas
Mark Nadeau, MD is one of 11,119 family medicine physician records with a practice address in Texas. 82% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1982 · median 2004 among the 7,095 with a school on file
- Record last updated2024 · 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 207Q00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
809 family medicine physician records list a practice address in San Antonio
They are 809 of the 37,749 NPPES records with a practice address in San Antonio, and 11,119 family medicine physician records in Texas.
All 11,119 in Texas → Every provider in San Antonio → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Christopher Arnold, MDSan Antonio, TX 782291255338950
- Timothy Barker, MDSan Antonio, TX 782291336126119
- Paris Brinkley, MDSan Antonio, TX 782291700867801
- Pamela Camosy, MDSan Antonio, TX 782291992702674
- Patricia Chung, M.D.San Antonio, TX 782291073503959
- Robin Eickhoff, MDSan Antonio, TX 782291962474320
- Nora Garza, MDSan Antonio, TX 782291972500684
- Carlos Jaen, M.D.San Antonio, TX 782291285625772
Common questions
What is Mark Nadeau, MD's NPI number?
Mark Nadeau, MD's National Provider Identifier (NPI) is 1821009630, issued on Aug 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Nadeau, MD located?
The NPPES record lists a practice address at 7703 Floyd Curl Dr, San Antonio, TX, 78229. Phone: (210) 257-1400. Providers update this record themselves, so call before visiting.
How can I verify Mark Nadeau, MD's license?
NPPES lists Texas license number G5422, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark Nadeau, MD prescribe under Medicare Part D?
In 2024, Mark Nadeau, MD had 518 Medicare Part D claims for 112 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
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.