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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. JOAN E. ETZELL M.D.
NPI 1265470637
Pathology - Hematology in San Francisco, CA

Active since June 04, 2006
505 PARNASSUS AVE, SAN FRANCISCO, CA 94143(415) 353-1750(415) 353-1106 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 13, 2026, Sep 11, 2025 (2 updates tracked since 2025).

About Dr. Joan E. Etzell M.d. NPPES

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

DR. JOAN E. ETZELL M.D. (NPI 1265470637) is an individual hematology provider in San Francisco, California, licensed in California (G79064) and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1265470637
Entity TypeIndividualFemale
Primary Taxonomy207ZH0000X
Provider Legal NameDR. JOAN E. ETZELLCredential: M.D.
Location Address505 PARNASSUS AVESan Francisco, CA 94143-2204
Mailing Address1635 Divisadero Street, Suite 625, Box 1821San Francisco, CA 94143-0001 · (415) 476-4029 · Fax (415) 476-4150
Phone(415) 353-1750
Fax(415) 353-1106
Sole ProprietorNo
Enumeration DateJune 4, 2006
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
✔ NPI 1265470637 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPathology · HematologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZH0000X
License✔ Licensed in CA · G79064
Definition
A hematopathologist is expert in diseases that affect blood cells, blood clotting mechanisms, bone marrow and lymph nodes. This physician has the knowledge and technical skills essential for the laboratory diagnosis of anemias, leukemias, lymphomas, bleeding disorders and blood clotting disorders.
Also ListedPathology · Anatomic Pathology & Clinical PathologyTaxonomy 207ZP0102X · License G79064 (CA)
Also ListedPathology · Clinical Pathology/Laboratory MedicineTaxonomy 207ZP0105X · License G79064 (CA)
505 PARNASSUS AVE, San Francisco, CA 94143
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Other Identifiers 1

Medicaid00G790640CA

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.

CATHERINE RAMSDELL NNP
Nurse Practitioner (Neonatal)
505 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-1000
DR. CLAUDIO ANDRES BRAVO CARRILLO M.D.
Internal Medicine (Advanced Heart Failure and Transplant Cardiology)
505 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 502-4243
MAURICIO JALIFE BUCAY M.D
Hospitalist
505 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 750-4994
EMMA B SHAK M.D.
Student in an Organized Health Care Education/Training Program
505 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-1528
DR. ADRIANA A.T. MARTIN M.D., PH.D.
Internal Medicine
505 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 514-7288
WILLIAM JAMES DEARDORFF
Internal Medicine (Geriatric Medicine)
505 PARNASSUS AVE, 15 LONG
SAN FRANCISCO, CA 94143
San Francisco County (415) 406-1417
KEERTHANA REDDY BANALA
Student in an Organized Health Care Education/Training Program
505 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 514-7288
ROBERT CHRISTIAN WENZ
Nurse Anesthetist, Certified Registered
505 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-8054

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 Joan Etzell's NPI number?

The NPI number for Joan Etzell is 1265470637. It was assigned to this individual provider in the NPPES registry on June 4, 2006.

Where is Joan Etzell located?

Joan Etzell practices at 505 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (415) 353-1750.

What is Joan Etzell's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Hematology, with taxonomy code 207ZH0000X.

When was this NPI record last updated?

The NPPES record for Joan Etzell was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 28 days 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.