KATHLEEN M. GRANNAN MD
NPI 1538245063
Internal Medicine in Oakland, CA

Active since October 27, 2006
1950 FRANKLIN ST, OAKLAND, CA 94612(510) 987-1000 Get Directions Write a Review

NPPES record last updated: November 30, 2021. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Kathleen M. Grannan Md NPPES

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

KATHLEEN M. GRANNAN MD (NPI 1538245063) is an individual internal medicine provider in Oakland, California, licensed in California (G55007) and active in the NPI registry since October 2006.

NPPES Registry Identity

NPI1538245063
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameKATHLEEN M. GRANNANCredential: MD
Location Address1950 FRANKLIN STOakland, CA 94612-5190
Mailing Address1800 Harrison St Fl 7Oakland, CA 94612-3466 · (510) 625-6262
Sole ProprietorNo
Enumeration DateOctober 27, 2006
Last NPPES UpdateNovember 30, 2021
NPI 1538245063 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in CA · G55007
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1950 FRANKLIN ST, Oakland, CA 94612

Other Identifiers 1

Medicaid00G550070CA

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.

Registered Nurse
1950 FRANKLIN ST
OAKLAND, CA 94612
Internal Medicine
1950 FRANKLIN ST
OAKLAND, CA 94612
Student in an Organized Health Care Education/Training Program
1950 FRANKLIN ST
OAKLAND, CA 94612
Nurse Practitioner
1950 FRANKLIN ST
OAKLAND, CA 94612
Pediatrics
1950 FRANKLIN ST
OAKLAND, CA 94612
Registered Nurse (Administrator)
1950 FRANKLIN ST
OAKLAND, CA 94612
Internal Medicine
1950 FRANKLIN ST
OAKLAND, CA 94612
Pediatrics
1950 FRANKLIN ST
OAKLAND, CA 94612

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 Kathleen Grannan's NPI number?

The NPI number for Kathleen Grannan is 1538245063. It was assigned to this individual provider in the NPPES registry on October 27, 2006.

Where is Kathleen Grannan located?

Kathleen Grannan practices at 1950 Franklin St, Oakland, CA 94612. The listed phone number is (510) 987-1000.

What is Kathleen Grannan's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Kathleen Grannan was last updated on November 30, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.