Physician Profile
Based in San Francisco, CA, Kathryn Fay, MD is listed in the NPI registry under obstetrics/gynecology. Kathryn is also listed as specializing in obstetrics & gynecology. According to Medicare claims data, the services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. NPI 1033509740 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
2356 SUTTER ST
San Francisco, CA 94115
75 Francis St
Boston, MA 02115
Within Obstetrics and Gynecology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Pelvic pain and benign gynecology
Most searched conditions
Infections and vulvovaginal conditions
Menstrual and hormonal
Pregnancy
Cancer and precancer
Contraception
Fertility
Infections
Pregnancy Complications
Vaginal & Vulvar Health
Most searched procedures
Contraception and office treatment
Pregnancy and delivery
Preventive and diagnostic
Birth Control
Contraception
Diagnostic Procedures
Fertility
Hormone & Menopause
Laparoscopic and adnexal surgery
Pelvic floor
Postpartum Care
Pregnancy & Prenatal
Preventive Care
Preventive Screening
Routine Exams
Surgeries
Uterine and cervical procedures
12 services · 11 patients · 1 distinct code
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
12 | Less often than most peers in Obstetrics/Gynecology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Fay is an obstetrics/gynecology in San Francisco, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Dr. Fay is listed at 2356 Sutter St, San Francisco, CA 94115. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (415) 353-3400. Contact the office directly to confirm availability and scheduling.
NPI registry
Dr. Fay's National Provider Identifier is 1033509740. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Dr. Fay attended Other, graduating in 2015. This comes from the CMS National Downloadable File.
CMS public data
Dr. Fay has 11 years experience. Calculated from a graduation year of 2015, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Fay the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Fay. If this is you, claiming it is free.
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