Vivian Y. Pao, MD
Endocrinology, Diabetes & Metabolism Physician · Timonium, MD
Vivian Y. Pao, MD is an endocrinology, diabetes & metabolism physician with a practice address in Timonium, Maryland, and NPI 1265604870, issued on Mar 24, 2008. Check the license (Maryland D68920, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Vivian Y. Pao
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License numbers
- D68920 MD
A85813 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1 Texas Station CT, Timonium, MD 21093
- Phone
- (410) 828-7417
- Enumerated
- Mar 24, 2008
- Record last updated
- May 9, 2025
- Fax
- (410) 828-4695
- Medicaid ID
- 422155900 MD
- Medicare enrollment
- Enrolled (PECOS I20100512000501); accepts Medicare assignment
- Medical or professional school
- Washington University School Of Medicine, 2002
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 314 in Maryland → Look up another NPI →
Also registered at 1 Texas Station CT
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mark Bradford, P.A.Medical Physician Assistant1831137611
- Ashley Davidson, MDEndocrinology, Diabetes & Metabolism Physician1457481947
- Rivkah Horowitz, PA-CMedical Physician Assistant1639303084
- Ruth Horowitz, MDEndocrinology, Diabetes & Metabolism Physician1003811423
- Tamara Irby, P.T.Physical Therapist1588796916
- Meena Khan, MDEndocrinology, Diabetes & Metabolism Physician1831200203
Verify Vivian Y. Pao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D68920Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
44% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
1,483 Medicare Part D claims for 271 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 44% of claims.
Most prescribed
- Levothyroxine Sodium269 claims
- Synthroid152 claims
- Alendronate Sodium136 claims
- Metformin Hcl76 claims
- Ozempic60 claims
- Jardiance48 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: $695.65
31 payments; by number, the most common kind was food and beverage; the largest payer was Corcept Therapeutics. The 5,661 providers of this specialty with any payment received $5,742.15 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
- Privia Medical Group, LLCAnnapolis, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Vivian Y. Pao among 314 endocrinology, diabetes & metabolism physician records in Maryland
Vivian Y. Pao, MD is one of 314 endocrinology, diabetes & metabolism physician records with a practice address in Maryland. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 59% of them.
- NPI issued2008 · 59% of these records are older, 37% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2002 · median 2003 among the 193 with a school on file
- Record last updated2025 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
9 endocrinology, diabetes & metabolism physician records list a practice address in Timonium
They are 9 of the 612 NPPES records with a practice address in Timonium, and 314 endocrinology, diabetes & metabolism physician records in Maryland.
All 314 in Maryland → Every provider in Timonium → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Ashley Davidson, MDTimonium, MD 210931457481947
- Craig Haber, MDTimonium, MD 210931255336673
- Ruth Horowitz, MDTimonium, MD 210931003811423
- Meena Khan, MDTimonium, MD 210931831200203
- Jeffrey Mindel, MDTimonium, MD 210931821133091
- Xinyuan Ning, M.D.Timonium, MD 210931285166611
- Hui Peng, MDTimonium, MD 210931518271071
- Thomas Pozefsky, M.D.Lutherville, MD 210931770584435
Common questions
What is Vivian Y. Pao, MD's NPI number?
Vivian Y. Pao, MD's National Provider Identifier (NPI) is 1265604870, issued on Mar 24, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Vivian Y. Pao, MD located?
The NPPES record lists a practice address at 1 Texas Station CT, Timonium, MD, 21093. Phone: (410) 828-7417. Providers update this record themselves, so call before visiting.
How can I verify Vivian Y. Pao, MD's license?
NPPES lists Maryland license number D68920, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Vivian Y. Pao, MD prescribe under Medicare Part D?
In 2024, Vivian Y. Pao, MD had 1,483 Medicare Part D claims for 271 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.