Ginny Wenjing Bao
Endocrinology, Diabetes & Metabolism Physician · San Francisco, CA
Ginny Wenjing Bao is an endocrinology, diabetes & metabolism physician with a practice address in San Francisco, California, and NPI 1801383286, issued on Apr 20, 2018. Check the license (California A166257, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ginny Wenjing Bao
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- A166257 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1100 Van Ness Ave, San Francisco, CA 94109
- Phone
- (415) 600-0110
- Enumerated
- Apr 20, 2018
- Record last updated
- Jan 15, 2025
- Fax
- (415) 558-7038
- Medicare enrollment
- Enrolled (PECOS I20220510002447); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 1,131 in California → Look up another NPI →
Also registered at 1100 Van Ness Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Haila AlbgalFamily Nurse Practitioner1417566043
- Ashley Arnold, LCSWClinical Social Worker1710559687
- Anjali Asrani, NPNurse Practitioner1184279770
- Nobl Barazangi, M.D.Vascular Neurology Physician1609893437
Verify Ginny Wenjing Bao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A166257Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
223 Medicare Part D claims for 74 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 53% of claims.
Most prescribed
- Ozempic26 claims
- Mounjaro17 claims
- Levothyroxine Sodium15 claims
- Jardiance13 claims
- Lantus Solostar11 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: $20.52
1 payment: food and beverage; the largest payer was Dexcom, Inc. 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
- Sutter Bay Medical FoundationSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ginny Wenjing Bao among 1,131 endocrinology, diabetes & metabolism physician records in California
Ginny Wenjing Bao is one of 1,131 endocrinology, diabetes & metabolism physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 92% of them.
- NPI issued2018 · 92% of these records are older, 6% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Record last updated2025 · 57% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in California
There are 1,131 endocrinology, diabetes & metabolism physician records in California.
All 1,131 in California → Every provider in San Francisco → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Diana Antoniucci, MDSan Francisco, CA 941091164486676
- Wade Aubry, M.DSan Francisco, CA 941091447265814
- Kjersti Kirkeby, M.D.San Francisco, CA 941091811182454
- Hanna Rifkin, RDSan Francisco, CA 941091093225443
- Amita RisbudSan Francisco, CA 941091194353490
- Christina Ryu, M.D.San Francisco, CA 941091518491158
- Ashlee Sidhu, MBBSSan Francisco, CA 941091538746078
- Melissa Weinberg, M.D.San Francisco, CA 941091659399079
Common questions
What is Ginny Wenjing Bao's NPI number?
Ginny Wenjing Bao's National Provider Identifier (NPI) is 1801383286, issued on Apr 20, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Ginny Wenjing Bao located?
The NPPES record lists a practice address at 1100 Van Ness Ave, San Francisco, CA, 94109. Phone: (415) 600-0110. Providers update this record themselves, so call before visiting.
How can I verify Ginny Wenjing Bao's license?
NPPES lists California license number A166257, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ginny Wenjing Bao prescribe under Medicare Part D?
In 2024, Ginny Wenjing Bao had 223 Medicare Part D claims for 74 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.