Vivian Bella Ahn, M.D.
Obstetrics & Gynecology Physician · San Antonio, TX
Vivian Bella Ahn, M.D. is an obstetrics & gynecology physician with a practice address in San Antonio, Texas, and NPI 1093151292, issued on May 14, 2013. Check the license (Texas R3987, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Vivian Bella Ahn
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- R3987 TX
Self-reported in NPPES; status is on the state search - Practice location
- 11212 State Hwy 151 Suite 350, San Antonio, TX 78251
- Phone
- (210) 281-5066
- Enumerated
- May 14, 2013
- Record last updated
- May 3, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (210) 281-4459
- Medicare enrollment
- Enrolled (PECOS I20180226002667); accepts Medicare assignment
- Medical or professional school
- Texas Tech University Health Science Center School Of Medicine, 2013
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 3,524 in Texas → Look up another NPI →
Verify Vivian Bella Ahn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license R3987Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
54 Medicare Part D claims for 23 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of 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: $222.32
5 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 21,429 providers of this specialty with any payment received $1,030.61 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
- Alamo Women's Obstetrics And Gynecology, PLLCSan Antonio, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Vivian Bella Ahn among 3,524 obstetrics & gynecology physician records in Texas
Vivian Bella Ahn, M.D. is one of 3,524 obstetrics & gynecology physician records with a practice address in Texas. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 73% of them.
- NPI issued2013 · 73% of these records are older, 25% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2013 · median 2005 among the 2,093 with a school on file
- Record last updated2018 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Texas
There are 3,524 obstetrics & gynecology physician records in Texas.
All 3,524 in Texas → Every provider in San Antonio → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Yadira Anca, MDSan Antonio, TX 782511295915254
- Paula Bilica, D.O.San Antonio, TX 782511467620260
- Emily BowdenSan Antonio, TX 782511588197966
- Amy Gonzales, MDSan Antonio, TX 782511457746232
- Nistha Jajal, M.D.San Antonio, TX 782511194172205
- John Kellum, M.D.San Antonio, TX 782511255326989
- Nkechi Ogogor, M.D.San Antonio, TX 782511366625626
- Molly Shields, M.D.San Antonio, TX 782511396971255
Common questions
What is Vivian Bella Ahn, M.D.'s NPI number?
Vivian Bella Ahn, M.D.'s National Provider Identifier (NPI) is 1093151292, issued on May 14, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Vivian Bella Ahn, M.D. located?
The NPPES record lists a practice address at 11212 State Hwy 151 Suite 350, San Antonio, TX, 78251. Phone: (210) 281-5066. Providers update this record themselves, so call before visiting.
How can I verify Vivian Bella Ahn, M.D.'s license?
NPPES lists Texas license number R3987, 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 Vivian Bella Ahn, M.D. prescribe under Medicare Part D?
In 2024, Vivian Bella Ahn, M.D. had 54 Medicare Part D claims for 23 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.