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STEPHANIE NOI LING CHUN MD
NPI 1285750943
Obstetrics & Gynecology in San Francisco, CA

Active since March 22, 2007PECOS EnrolledAccepts Medicare Assignment
3838 CALIFORNIA ST RM 412, SAN FRANCISCO, CA 94118(415) 379-6800(415) 379-6808 Get Directions Write a Review

NPPES record last updated: July 10, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 10, 2025, Apr 9, 2018 (2 updates tracked since 2018).

About Stephanie Noi Ling Chun Md NPPES

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

STEPHANIE NOI LING CHUN MD (NPI 1285750943) is an individual obstetrics & gynecology provider in San Francisco, California, licensed in California (G085621) and active in the NPI registry since March 2007. She is enrolled in Medicare PECOS and is a graduate of Northwestern University Feinberg Medical School (1989).

NPPES Registry Identity

NPI1285750943
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameSTEPHANIE NOI LING CHUNCredential: MD
Location Address3838 CALIFORNIA ST RM 412San Francisco, CA 94118-1506
Mailing Address3838 California St Rm 412San Francisco, CA 94118-1506 · (415) 563-9000 · Fax (415) 563-1232
Phone(415) 379-6800
Fax(415) 379-6808
Sole ProprietorNo
Medical School CMSNorthwestern University Feinberg Medical SchoolGraduated 1989
Enumeration DateMarch 22, 2007
Last NPPES UpdateJuly 10, 20252 updates tracked since enumeration
NPPES CertifiedJune 10, 2025
✔ NPI 1285750943 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 · G085621
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.
3838 CALIFORNIA ST RM 412, San Francisco, CA 94118
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Stephanie Noi Ling Chun Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8426116591
PECOS Enrollment IDI20081020000603
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 Reassignments

2

Medicare enrollment records show Stephanie Chun reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Sfwomen's Gyn Inc.
Same address
Gynecology
3838 CALIFORNIA ST RM 412
San Francisco, CA 94118
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: San Francisco Women's Healthcare, Inc.
  • 3 clinicians in this Medicare group
NPI 1912027632 (415) 379-6800
Sfwomen's Gyn Inc.
Same address
Gynecology
3838 CALIFORNIA ST RM 412
San Francisco, CA 94118
  • Reassigned Medicare billing, California enrollment
  • 2 clinicians in this Medicare group
NPI 1912027632 (415) 379-6800

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

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
29 services24 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
27 services17 patients
Cervical or vaginal cancer screening; pelvic and clinical breast examination G0101
This procedure involves checking for health issues in the lower abdomen and chest area. It helps identify early signs of certain conditions, increasing the chance for successful treatment. It's a routine check-up that's important for maintaining good health.
15 services15 patients
Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory Q0091
A Papanicolaou smear, often called a Pap smear, is a test to check for changes in cells. A small sample is gently collected from the lower region and sent to a lab for examination. This helps in early detection of potential health issues.
11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94118 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 2

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

SFWOMEN'S GYN INC.
Obstetrics & Gynecology (Gynecology)
3838 CALIFORNIA ST RM 412
SAN FRANCISCO, CA 94118
San Francisco County (415) 379-6800
RACHEL HUCHUNG SHU MD
Obstetrics & Gynecology
3838 CALIFORNIA ST RM 412
SAN FRANCISCO, CA 94118
San Francisco County (415) 349-6800

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 Stephanie Chun's NPI number?

The NPI number for Stephanie Chun is 1285750943. It was assigned to this individual provider in the NPPES registry on March 22, 2007.

Where is Stephanie Chun located?

Stephanie Chun practices at 3838 California St Rm 412, San Francisco, CA 94118. The listed phone number is (415) 379-6800.

What is Stephanie Chun's specialty?

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

Is Stephanie Chun enrolled in Medicare?

Yes. Stephanie Chun is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Stephanie Chun's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stephanie Chun reassigns Medicare benefits to 2 organizations: Sfwomen's Gyn Inc. (San Francisco, CA) and Sfwomen's Gyn Inc. (San Francisco, CA). Each 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 Stephanie Chun'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 Stephanie Chun was last updated on July 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months 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.