Francis M. Williams, M.D.
Rheumatology Physician · San Antonio, TX
Francis M. Williams, M.D. is a rheumatology physician with a practice address in San Antonio, Texas, and NPI 1275519449, issued on Dec 20, 2005. Check the license (Texas J4615, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Francis M. Williams
- Credential
- M.D.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- J4615 TX
Self-reported in NPPES; status is on the state search - Practice location
- 8715 Village Dr Ste 400, San Antonio, TX 78217
- Phone
- (210) 732-3668
- Enumerated
- Dec 20, 2005
- Record last updated
- Nov 6, 2024
- Medicare enrollment
- Enrolled (PECOS I20070223000093); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At Houston, 1992
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 545 in Texas → Look up another NPI →
Also registered at 8715 Village Dr Ste 400
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Francis M. Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license J4615Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average rheumatology physician in 2024
4,588 Medicare Part D claims for 816 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 116 claims were for opioids.
Most prescribed
- Methotrexate583 claims
- Prednisone535 claims
- Hydroxychloroquine Sulfate447 claims
- Leflunomide266 claims
- Sulfasalazine Dr239 claims
- Folic Acid230 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: $708.47
7 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 4,486 providers of this specialty with any payment received $8,538.33 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
- Wellmed Networks, Inc.San Antonio, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Francis M. Williams among 545 rheumatology physician records in Texas
Francis M. Williams, M.D. is one of 545 rheumatology physician records with a practice address in Texas. 87% 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, 90% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1992 · median 2004 among the 417 with a school on file
- Record last updated2024 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in Texas
There are 545 rheumatology physician records in Texas.
All 545 in Texas → Every provider in San Antonio → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Kenneth Desrosier, M.D.San Antonio, TX 782171568447563
- Jessica Schaefer, DOSan Antonio, TX 782171912014812
- Joshua Stolow, M. D.San Antonio, TX 782171588663371
- John Huff, MD, PHDSan Antonio, TX 782161912978933
- Mark Nelson, MDSan Antonio, TX 782181538140090
- Rita Cuevas, MDSan Antonio, TX 782151689653917
- Aaron Garza Romero, M.D.San Antonio, TX 782141912294976
- Ana Ballester-Fiallo, MDSan Antonio, TX 782121811007412
Common questions
What is Francis M. Williams, M.D.'s NPI number?
Francis M. Williams, M.D.'s National Provider Identifier (NPI) is 1275519449, issued on Dec 20, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Francis M. Williams, M.D. located?
The NPPES record lists a practice address at 8715 Village Dr Ste 400, San Antonio, TX, 78217. Phone: (210) 732-3668. Providers update this record themselves, so call before visiting.
How can I verify Francis M. Williams, M.D.'s license?
NPPES lists Texas license number J4615, 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 Francis M. Williams, M.D. prescribe under Medicare Part D?
In 2024, Francis M. Williams, M.D. had 4,588 Medicare Part D claims for 816 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.