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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. ALAN B. GLASSBERG M.D.
NPI 1770519126
Internal Medicine - Hematology in San Francisco, CA

Active since June 25, 2006
1600 DIVISADERO ST, SAN FRANCISCO, CA 94115(415) 353-9888(415) 353-7150 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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

About Dr. Alan B. Glassberg M.d. NPPES

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

DR. ALAN B. GLASSBERG M.D. (NPI 1770519126) is an individual hematology provider in San Francisco, California, licensed in California (C27145) and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1770519126
Entity TypeIndividualMale
Primary Taxonomy207RH0000X
Provider Legal NameDR. ALAN B. GLASSBERGCredential: M.D.
Location Address1600 DIVISADERO STSan Francisco, CA 94115-3010
Mailing Address1635 Divisadero Street, Suite 625, Box 1821San Francisco, CA 94143-0001 · (415) 476-4029 · Fax (415) 476-4150
Phone(415) 353-9888
Fax(415) 353-7150
Sole ProprietorNo
Enumeration DateJune 25, 2006
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
✔ NPI 1770519126 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · HematologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0000X
License✔ Licensed in CA · C27145
Definition
An internist with additional training who specializes in diseases of the blood, spleen and lymph. This specialist treats conditions such as anemia, clotting disorders, sickle cell disease, hemophilia, leukemia and lymphoma.
Also ListedInternal MedicineTaxonomy 207R00000X · License C27145 (CA)
Also ListedInternal Medicine · Medical OncologyTaxonomy 207RX0202X · License C27145 (CA)
1600 DIVISADERO ST, San Francisco, CA 94115
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Other Identifiers 1

Medicaid00C271450CA

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.

DR. PATRICIA J MORAN PSY
Psychologist
1600 DIVISADERO ST
SAN FRANCISCO, CA 94115
San Francisco County (415) 353-9745
DR. ERIC KAORU NAKAKURA MD
Surgery
1600 DIVISADERO ST
SAN FRANCISCO, CA 94115
San Francisco County (415) 353-9846
DR. HOPE S. RUGO MD
Internal Medicine (Hematology)
1600 DIVISADERO ST
SAN FRANCISCO, CA 94115
San Francisco County (415) 353-7070
RONALD BALASSANIAN MD
Pathology (Anatomic Pathology & Clinical Pathology)
1600 DIVISADERO ST, UCSF/MT. ZION MEDICAL CENTER, ROOM 200 FNA CLINIC
SAN FRANCISCO, CA 94115
San Francisco County (415) 514-6642
DR. JOHN W PARK MD
Internal Medicine (Medical Oncology)
1600 DIVISADERO ST, 2ND FLOOR, BOX 1710
SAN FRANCISCO, CA 94115
San Francisco County (415) 353-7070
MARYLOU LOUISE ERNEST NP
Nurse Practitioner
1600 DIVISADERO ST
SAN FRANCISCO, CA 94115
San Francisco County (415) 353-7035
DR. RICHARD M. KRIEG MD
Radiology (Therapeutic Radiology)
1600 DIVISADERO ST
SAN FRANCISCO, CA 94115
San Francisco County (415) 353-7175
DR. I-CHOW JOE HSU M.D.
Radiology (Radiation Oncology)
1600 DIVISADERO ST
SAN FRANCISCO, CA 94115
San Francisco County (415) 353-7175

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 Alan Glassberg's NPI number?

The NPI number for Alan Glassberg is 1770519126. It was assigned to this individual provider in the NPPES registry on June 25, 2006.

Where is Alan Glassberg located?

Alan Glassberg practices at 1600 Divisadero St, San Francisco, CA 94115. The listed phone number is (415) 353-9888.

What is Alan Glassberg's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology, with taxonomy code 207RH0000X.

When was this NPI record last updated?

The NPPES record for Alan Glassberg 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 37 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.