William Warren Janes, M.D.
Physical Medicine & Rehabilitation Physician · San Antonio, TX
William Warren Janes, M.D. is a physical medicine & rehabilitation physician with a practice address in San Antonio, Texas, and NPI 1720069859, issued on Nov 7, 2005. Check the license (Texas J1700, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- William Warren Janes
- Credential
- M.D.
- Primary taxonomy
- Physical Medicine & Rehabilitation Physician 208100000X
- License number
- J1700 TX
Self-reported in NPPES; status is on the state search - Practice location
- 16023 Via Shavano, San Antonio, TX 78249
- Phone
- (210) 615-2225
- Enumerated
- Nov 7, 2005
- Record last updated
- Jun 24, 2025
- Fax
- (210) 615-8432
- Medicaid ID
- 1299919-03 TX
- Medicare enrollment
- Enrolled (PECOS I20100730000757); accepts Medicare assignment
- Medical or professional school
- New York Medical College, 1988
- Entity
- Type 1 · individual
8 nearest physical medicine & rehabilitation physician records → All 1,099 in Texas → Look up another NPI →
Also registered at 16023 Via Shavano
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Barry Hill, M.D.Physical Medicine & Rehabilitation Physician1952585242
- Alex Willingham, M.D.Physical Medicine & Rehabilitation Physician1558342634
Verify William Warren Janes in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license J1700Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% fewer Medicare Part D claims than the average physical medicine & rehabilitation physician in 2024
420 Medicare Part D claims for 143 beneficiaries, against an average of 727 among the 7,448 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims. 86 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen42 claims
- Gabapentin32 claims
- Methocarbamol24 claims
- Tramadol Hcl19 claims
- Pantoprazole Sodium18 claims
- Oxycodone Hcl16 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
- South Texas PM And R Group, IncSan Antonio, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Warren Janes among 1,099 physical medicine & rehabilitation physician records in Texas
William Warren Janes, M.D. is one of 1,099 physical medicine & rehabilitation physician records with a practice address in Texas. 55% 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, 94% newer
- In a Medicare fileYes · 55% of these records are
- In the CMS Doctors and Clinicians fileYes · 47% of these records are
- Graduated1988 · median 2006 among the 512 with a school on file
- Record last updated2025 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208100000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Physical Medicine & Rehabilitation Physician providers in Texas
There are 1,099 physical medicine & rehabilitation physician records in Texas.
All 1,099 in Texas → Every provider in San Antonio → Physical Medicine & Rehabilitation Physician nationwide →
The 8 physical medicine & rehabilitation physician records with the nearest ZIP codes
- Barry Hill, M.D.San Antonio, TX 782491952585242
- Alex Willingham, M.D.San Antonio, TX 782491558342634
- Justin PapkeSan Antonio, TX 782511073161592
- Joshua FloresSan Antonio, TX 782451447177217
- John Dennis Alfonso, M.D.San Antonio, TX 782571558595660
- Michele AlstonSan Antonio, TX 782401427477850
- Keith Burchill, M.D.San Antonio, TX 782401508179052
- Seth Chandler, DOSan Antonio, TX 782401548475924
Common questions
What is William Warren Janes, M.D.'s NPI number?
William Warren Janes, M.D.'s National Provider Identifier (NPI) is 1720069859, issued on Nov 7, 2005. An NPI identifies a provider in billing; it is not a license.
Where is William Warren Janes, M.D. located?
The NPPES record lists a practice address at 16023 Via Shavano, San Antonio, TX, 78249. Phone: (210) 615-2225. Providers update this record themselves, so call before visiting.
How can I verify William Warren Janes, M.D.'s license?
NPPES lists Texas license number J1700, 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 William Warren Janes, M.D. prescribe under Medicare Part D?
In 2024, William Warren Janes, M.D. had 420 Medicare Part D claims for 143 beneficiaries; the average among physical medicine & rehabilitation physician prescribers was 727. 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.