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DR. RONALD ELKIN M.D.
NPI 1124110804
Internal Medicine in San Francisco, CA

Active since September 29, 2006
2100 WEBSTER ST, STE 1400, SAN FRANCISCO, CA 94115(415) 331-8390(415) 331-8380 Get Directions Write a Review

NPPES record last updated: July 12, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Ronald Elkin M.d. NPPES

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

DR. RONALD ELKIN M.D. (NPI 1124110804) is an individual internal medicine provider in San Francisco, California, licensed in California (G26754) and active in the NPI registry since September 2006.

NPPES Registry Identity

NPI1124110804
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. RONALD ELKINCredential: M.D.
Location Address2100 WEBSTER ST, STE 1400San Francisco, CA 94115
Mailing Address2100 Webster St, Ste 1400San Francisco, CA 94115 · (415) 331-8390 · Fax (415) 331-8380
Phone(415) 331-8390
Fax(415) 331-8380
Sole ProprietorYes
Enumeration DateSeptember 29, 2006
Last NPPES UpdateJuly 12, 2007
✔ NPI 1124110804 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 · G26754
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.
2100 WEBSTER ST, San Francisco, CA 94115
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Other Identifiers 2

Medicare UPINA20933CA
Medicare ID-Type Unspecified00G267540CA

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.

JACK C ROSE
Psychiatry & Neurology (Neurology)
2100 WEBSTER ST, 4TH FLOOR
SAN FRANCISCO, CA 94115
San Francisco County (415) 600-5760
RUSSELL D WOO M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery)
2100 WEBSTER ST
SAN FRANCISCO, CA 94115
San Francisco County (415) 923-3004
DR. STAFFORD J DUHN DDS
Dentist (General Practice)
2100 WEBSTER ST, SUITE 325
SAN FRANCISCO, CA 94115
San Francisco County (415) 923-3034
DR. RICKI POLLYCOVE M.D., M.H.S.
Obstetrics & Gynecology (Gynecology)
2100 WEBSTER ST, STE. 508
SAN FRANCISCO, CA 94115
San Francisco County (415) 923-3390
OLGA HIDCHENKO NP
Clinical Nurse Specialist (Women's Health)
2100 WEBSTER ST, SUITE 319
SAN FRANCISCO, CA 94115
San Francisco County (415) 923-3123
DR. DAVID R MINOR MD
Internal Medicine (Medical Oncology)
2100 WEBSTER ST, #326
SAN FRANCISCO, CA 94115
San Francisco County (415) 885-8600
DR. PEDRO JOSE RUIZ M.D., PH.D.
Internal Medicine (Rheumatology)
2100 WEBSTER ST, SUITE 112
SAN FRANCISCO, CA 94115
San Francisco County (415) 923-3060
JONATHAN KAPLAN MD INC
Plastic Surgery
2100 WEBSTER ST, SUITE 429
SAN FRANCISCO, CA 94115
San Francisco County (415) 923-3005

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 Ronald Elkin's NPI number?

The NPI number for Ronald Elkin is 1124110804. It was assigned to this individual provider in the NPPES registry on September 29, 2006.

Where is Ronald Elkin located?

Ronald Elkin practices at 2100 Webster St Ste 1400, San Francisco, CA 94115. The listed phone number is (415) 331-8390.

What is Ronald Elkin'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 Ronald Elkin was last updated on July 12, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.