Bala Viswanathan, M.D.
Surgery Physician · San Antonio, TX
Bala Viswanathan, M.D. is a surgery physician with a practice address in San Antonio, Texas, and NPI 1356375976, issued on Jul 10, 2006. Check the license (Texas G8766, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Bala Viswanathan
- Credential
- M.D.
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- G8766 TX
Self-reported in NPPES; status is on the state search - Practice location
- 19260 Stone Oak Pkwy, San Antonio, TX 78258
- Phone
- (210) 545-5455
- Enumerated
- Jul 10, 2006
- Record last updated
- Aug 4, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (210) 545-0222
- Medicaid ID
- 089817301 TX
- Medicare enrollment
- Enrolled (PECOS I20050414000568); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 2,192 in Texas → Look up another NPI →
Also registered at 19260 Stone Oak Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Henry Bussey, PT DPT MS OCSPhysical Therapist1295753192
- Stephanie Bussey, PT MPTPhysical Therapist1295746899
- Kristin Bussey-Smith, MDRheumatology Physician1487844775
- Michael Dawson, PTPhysical Therapist1053603191
- Kellie Gayle Gibson, PTPhysical Therapist1609195718
- Steffany Mock, PA-CMedical Physician Assistant1194996314
Verify Bala Viswanathan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license G8766Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average surgery physician in 2024
20 Medicare Part D claims for 16 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 18 claims were for opioids.
Most prescribed
- Tramadol Hcl15 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.
Bala Viswanathan among 2,192 surgery physician records in Texas
Bala Viswanathan, M.D. is one of 2,192 surgery physician records with a practice address in Texas. 76% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 58% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1974 · median 2004 among the 1,350 with a school on file
- Record last updated2008 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in Texas
There are 2,192 surgery physician records in Texas.
All 2,192 in Texas → Every provider in San Antonio → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Bruce Conway, MDSan Antonio, TX 782581629005996
- Richard Englehardt, M.D.San Antonio, TX 782581225251002
- Harold Gaskill, MDSan Antonio, TX 782581659372084
- Gregory Hamon, MDSan Antonio, TX 782581225033194
- Edward Horvath, D.O.San Antonio, TX 782581518942085
- Mitra Jafari, M.D.San Antonio, TX 782581528232014
- Joe Johnston, MDSan Antonio, TX 782581679507123
- William Parker, M.D.San Antonio, TX 782581295778686
Common questions
What is Bala Viswanathan, M.D.'s NPI number?
Bala Viswanathan, M.D.'s National Provider Identifier (NPI) is 1356375976, issued on Jul 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Bala Viswanathan, M.D. located?
The NPPES record lists a practice address at 19260 Stone Oak Pkwy, San Antonio, TX, 78258. Phone: (210) 545-5455. Providers update this record themselves, so call before visiting.
How can I verify Bala Viswanathan, M.D.'s license?
NPPES lists Texas license number G8766, 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 Bala Viswanathan, M.D. prescribe under Medicare Part D?
In 2024, Bala Viswanathan, M.D. had 20 Medicare Part D claims for 16 beneficiaries; the average among surgery physician prescribers was 147. 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.