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DR. SUSAN I CHIN TIEN M.D.
NPI 1932309168
Obstetrics & Gynecology in San Francisco, CA

Active since July 25, 2007PECOS Enrolled
2425 GEARY BLVD, GME OFFICE, SAN FRANCISCO, CA 94115(415) 833-3937 Get Directions Write a Review

NPPES record last updated: January 10, 2022. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Susan I Chin Tien M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. SUSAN I CHIN TIEN M.D. (NPI 1932309168) is an individual obstetrics & gynecology provider in San Francisco, California, licensed in California (99411) and active in the NPI registry since July 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1932309168
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameDR. SUSAN I CHIN TIENCredential: M.D.
Location Address2425 GEARY BLVD, GME OFFICESan Francisco, CA 94115-3358
Mailing Address2425 Geary Blvd, Gme OfficeSan Francisco, CA 94115-3358
Phone(415) 833-3937
Sole ProprietorNo
Enumeration DateJuly 25, 2007
Last NPPES UpdateJanuary 10, 2022
✔ NPI 1932309168 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in CA · 99411
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
2425 GEARY BLVD, San Francisco, CA 94115
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Other Names 1

Other Name (5)Susan Tien

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Susan I Chin Tien M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Susan Tien reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
0.2 mi
Internal Medicine
2238 GEARY
San Francisco, CA 94116
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1841373800 (415) 833-2200

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94115 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$84.91 typical visit price
range $23.44 – $166.46
Typical copayment $21.22 (range $5.86 – $41.61)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

STEVEN PIROG MD
Student in an Organized Health Care Education/Training Program
2425 GEARY BLVD
SAN FRANCISCO, CA 94115
San Francisco County (415) 833-2000
AARON LAM
Student in an Organized Health Care Education/Training Program
2425 GEARY BLVD
SAN FRANCISCO, CA 94115
San Francisco County (415) 833-2000
DR. EMILY SU LEE MD
Student in an Organized Health Care Education/Training Program
2425 GEARY BLVD
SAN FRANCISCO, CA 94115
San Francisco County (415) 833-3034
SOO-JEON CHOI
Pharmacist
2425 GEARY BLVD
SAN FRANCISCO, CA 94115
San Francisco County (415) 833-2331
BRET KINSEY GORDEN LCSW
Social Worker
2425 GEARY BLVD, COORDINATION OF CARE SERVICES DEPARTMENT
SAN FRANCISCO, CA 94115
San Francisco County (415) 833-9934
SRAAVYA KAKARLAPUDI MD
Student in an Organized Health Care Education/Training Program
2425 GEARY BLVD
SAN FRANCISCO, CA 94115
San Francisco County (415) 833-2000
ELLORA ONG PHARMD.
Pharmacist
2425 GEARY BLVD
SAN FRANCISCO, CA 94115
San Francisco County (415) 833-9700
KAISER FOUNDATION HOSPITALS
Pharmacy (Institutional Pharmacy)
2425 GEARY BLVD
SAN FRANCISCO, CA 94115
San Francisco County (415) 833-4255

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Susan Tien's NPI number?

The NPI number for Susan Tien is 1932309168. It was assigned to this individual provider in the NPPES registry on July 25, 2007.

Where is Susan Tien located?

Susan Tien practices at 2425 Geary Blvd Gme Office, San Francisco, CA 94115. The listed phone number is (415) 833-3937.

What is Susan Tien's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Susan Tien enrolled in Medicare?

Yes. Susan Tien is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Susan Tien's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Susan Tien reassigns Medicare benefits to Permanente Medical Group Inc (San Francisco, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Susan Tien's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Susan Tien was last updated on January 10, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.