Unknown Individual – Surgical Oncology Physician, NPI 1679538599

Surgical Oncology Physician

Unknown Individual is a healthcare provider. based in San francisco, California. specializing in Surgical Oncology Physician. They hold a License No. G8643 (CA). The NPI Number for Unknown Individual is 1679538599

Main info

Organization

Inactive

Name

Unknown Individual

NPI

1679538599

Phone

Not provided

Address

1635 DIVISADERO ST.

Deactivation Date

1 February 2023

Data current as of

19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology

Experience23

Completeness75

Years active:0State licenses:2Digital endpointsOther names

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Provider Addresses for Unknown Individual

1635, Divisadero Street, Lower Pacific Heights, Western Addition, San Francisco, California, 94115, United States
STE 625, BOX 1821
SAN FRANCISCO, CA 941430001
Phone:
Type: Mailing
Ambulatory Care Center, 400, Parnassus Avenue, Cole Valley, San Francisco, California, 94117, United States
SAN FRANCISCO, CA 941432202
Phone: (415) 353-2161
Fax: (415) 353-2505
Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 94143)

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Reviews

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Frequently asked questions

Does Unknown Individual share an NPI with anyone else?

NPI numbers are unique to each provider or organization — Unknown Individual uses 1679538599.

What dates should I check for Unknown Individual's activity?

We display what the registry publishes: Unknown Individual appears inactive there.

What taxonomy line describes Unknown Individual?

For research purposes, treat Unknown Individual as Surgical Oncology Physician in this dataset. Clinical services aligned with this taxonomy classification.

Does Unknown Individual list a practice location?

Patients near San Francisco, California may find Unknown Individual in results; validate coverage separately.

Why does Unknown Individual have multiple addresses?

2 practice locations appear in the available data. Multiple addresses are common for hospital privileges, telehealth, or multi-site groups.