Susan I Chin Tien, M.D.
Obstetrics & Gynecology Physician · San Francisco, CA
Susan I Chin Tien, M.D. is an obstetrics & gynecology physician with a practice address in San Francisco, California, and NPI 1932309168, issued on Jul 25, 2007. Check the license (California 99411, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Susan I Chin Tien
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 99411 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2425 Geary Blvd, San Francisco, CA 94115
- Phone
- (415) 833-3937
- Enumerated
- Jul 25, 2007
- Record last updated
- Jan 10, 2022
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 2425 Geary Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jorge Abaunza, PHARM D.Pharmacist1457400046
- Laura Abbott, M.D.Student in an Organized Health Care Education/Training Program1093071367
- Brian Ablang, P.T.Physical Therapist1609931054
- Arash AgharahmanianStudent in an Organized Health Care Education/Training Program1366237240
- Mia AldridgeStudent in an Organized Health Care Education/Training Program1437890761
- Catherine Grace Alejo, NPFamily Nurse Practitioner1932273521
Verify Susan I Chin Tien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 99411Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.5 times the Medicare Part D claims of the average obstetrics & gynecology physician in 2024
737 Medicare Part D claims for 321 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Estradiol204 claims
- Progesterone90 claims
- Acyclovir75 claims
- Yuvafem69 claims
- Estring59 claims
- Climara56 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: $1,516.00
2 payments; by number, the most common kind was food and beverage; the largest payer was Intuitive Surgical, 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.
Susan I Chin Tien among 5,088 obstetrics & gynecology physician records in California
Susan I Chin Tien, M.D. is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 48% of them.
- NPI issued2007 · 48% of these records are older, 38% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2022 · 64% 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 California 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 California
There are 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in San Francisco → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Reuben Clay, MDSan Francisco, CA 941151477541092
- Robert Domush, M.D.San Francisco, CA 941151932141454
- Uchechukwu Ezeh, M.D.San Francisco, CA 941151710934310
- Morey Filler, MDSan Francisco, CA 941151437147063
- Victor Fujimoto, M.D.San Francisco, CA 941151598704140
- Cindy Grijalva, MDSan Francisco, CA 941151225028913
- Heather Huddleston, M.D.San Francisco, CA 941151053358598
- Julie Huh, MDSan Francisco, CA 941151225026446
Common questions
What is Susan I Chin Tien, M.D.'s NPI number?
Susan I Chin Tien, M.D.'s National Provider Identifier (NPI) is 1932309168, issued on Jul 25, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Susan I Chin Tien, M.D. located?
The NPPES record lists a practice address at 2425 Geary Blvd, San Francisco, CA, 94115. Phone: (415) 833-3937. Providers update this record themselves, so call before visiting.
How can I verify Susan I Chin Tien, M.D.'s license?
NPPES lists California license number 99411, 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 Susan I Chin Tien, M.D. prescribe under Medicare Part D?
In 2024, Susan I Chin Tien, M.D. had 737 Medicare Part D claims for 321 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.