Melissa A. Walker, DO
Family Medicine Physician · San Antonio, TX
Melissa A. Walker, DO is a family medicine physician with a practice address in San Antonio, Texas, and NPI 1346248499, issued on Jul 12, 2005. Check the license (Texas L9538, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Melissa A. Walker
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- L9538 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1954 E Houston St, San Antonio, TX 78202
- Phone
- (210) 271-0805
- Enumerated
- Jul 12, 2005
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (210) 271-0833
- Medicaid ID
- 169867201 TX
- Medicare enrollment
- Enrolled (PECOS I20041106000151); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 11,119 in Texas → Look up another NPI →
Also registered at 1954 E Houston St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Melissa A. Walker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license L9538Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average family medicine physician in 2024
470 Medicare Part D claims for 53 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Lisinopril42 claims
- Metformin Hcl31 claims
- Hydrochlorothiazide30 claims
- Fluticasone Propionate24 claims
- Simvastatin21 claims
- Amlodipine Besylate20 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.
Industry payments in 2024: $27,750.44
12 payments; by number, the most common kind was consulting fee; the largest payer was Coloplast Corp. The 55,478 providers of this specialty with any payment received $902.55 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.
Melissa A. Walker among 11,119 family medicine physician records in Texas
Melissa A. Walker, DO 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2004 · median 2004 among the 7,095 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 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
- David CorderoSan Antonio, TX 782021851515084
- Mohamed Abdel-Rehim, M.D.San Antonio, TX 782011588895429
- Cristina Cortez, MDSan Antonio, TX 782011528055167
- Peter Goldstein, MDSan Antonio, TX 782011154567980
- Brenda Sears, MDSan Antonio, TX 782011316919509
- Emilio Apostol, MDSan Antonio, TX 782051982786661
- Jahnavi Bheemreddy, M.D.San Antonio, TX 782051265668982
- Anthony Deep, M.D.San Antonio, TX 782051215970843
Common questions
What is Melissa A. Walker, DO's NPI number?
Melissa A. Walker, DO's National Provider Identifier (NPI) is 1346248499, issued on Jul 12, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Melissa A. Walker, DO located?
The NPPES record lists a practice address at 1954 E Houston St, San Antonio, TX, 78202. Phone: (210) 271-0805. Providers update this record themselves, so call before visiting.
How can I verify Melissa A. Walker, DO's license?
NPPES lists Texas license number L9538, 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 Melissa A. Walker, DO prescribe under Medicare Part D?
In 2024, Melissa A. Walker, DO had 470 Medicare Part D claims for 53 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.