STEVEN GRANT DEEKS MD
NPI 1073604666
Internal Medicine - Medical Oncology in San Francisco, CA

Active since September 27, 2006PECOS Enrolled
513 PARNASSUS AVE, SAN FRANCISCO, CA 94143(415) 476-9362 Get Directions Write a Review

NPPES record last updated: April 28, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Apr 28, 2026, Apr 13, 2026 (2 updates tracked since 2026).

About Steven Grant Deeks Md NPPES

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

STEVEN GRANT DEEKS MD (NPI 1073604666) is an individual medical oncology provider in San Francisco, California, licensed in California (G73895) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS and maintains a secondary practice location in San Francisco.

NPPES Registry Identity

NPI1073604666
Entity TypeIndividualMale
Primary Taxonomy207RX0202X
Provider Legal NameSTEVEN GRANT DEEKSCredential: MD
Location Address513 PARNASSUS AVESan Francisco, CA 94143-2205
Mailing AddressPo Box 743749Los Angeles, CA 90074-3749 · (415) 514-3000 · Fax (415) 502-8175
Sole ProprietorNo
Enumeration DateSeptember 27, 2006
Last NPPES UpdateApril 28, 20262 updates tracked since enumeration
NPPES CertifiedApril 28, 2026
NPI 1073604666 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RX0202X
License Licensed in CA · G73895
Definition

An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.

Also ListedInternal MedicineTaxonomy 207R00000X · License G73895 (CA)
513 PARNASSUS AVE, San Francisco, CA 94143

Secondary Practice Location 1

Location 1995 Potrero Avenue, Bldg 80 Ward 84San Francisco, CA 94110-3518 · Phone (415) 476-4082 · Fax (415) 476-5953

Other Identifiers 2

Medicaid00G738950CA
Other010050556CA · Railroad Medicare

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Steven Grant Deeks Md 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94143 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
$202.35 typical visit price
range $69.00 – $202.35
Typical copayment $50.58 (range $17.25 – $50.58)
Most-billed visit code 99205
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
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.

Pathology (Molecular Genetic Pathology)
513 PARNASSUS AVE, HSW4, SUITE 450A
SAN FRANCISCO, CA 94143
Plastic Surgery
513 PARNASSUS AVE, S-321
SAN FRANCISCO, CA 94143
Surgery
513 PARNASSUS AVE
SAN FRANCISCO, CA 94143
General Acute Care Hospital
513 PARNASSUS AVE, BOX 0427
SAN FRANCISCO, CA 94143
Internal Medicine (Pulmonary Disease)
513 PARNASSUS AVE, HSE1314
SAN FRANCISCO, CA 94143
Internal Medicine (Infectious Disease)
513 PARNASSUS AVE, S-380, BOX 0654
SAN FRANCISCO, CA 94143
Pathology (Neuropathology)
513 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Internal Medicine (Gastroenterology)
513 PARNASSUS AVE
SAN FRANCISCO, CA 94143

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 Steven Deeks's NPI number?

The NPI number for Steven Deeks is 1073604666. It was assigned to this individual provider in the NPPES registry on September 27, 2006.

Where is Steven Deeks located?

Steven Deeks practices at 513 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (415) 476-9362.

What is Steven Deeks's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Is Steven Deeks enrolled in Medicare?

Yes. Steven Deeks is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Steven Deeks was last updated on April 28, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.