DR. DAVID RICHARD ERNST M.D.
NPI 1720178411
Internal Medicine in Greenbrae, CA

Active since October 13, 2006
250 BON AIR RD, GREENBRAE, CA 94904(415) 448-1500(415) 461-4229 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. David Richard Ernst M.d. NPPES

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

DR. DAVID RICHARD ERNST M.D. (NPI 1720178411) is an individual internal medicine provider in Greenbrae, California, licensed in California (G48002) and active in the NPI registry since October 2006.

NPPES Registry Identity

NPI1720178411
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. DAVID RICHARD ERNSTCredential: M.D.
Location Address250 BON AIR RDGreenbrae, CA 94904-1702
Mailing Address300 Professional Center Dr, Suite 311Novato, CA 94947-4334 · (415) 448-1555 · Fax (415) 892-8732
Fax(415) 461-4229
Sole ProprietorNo
Enumeration DateOctober 13, 2006
Last NPPES UpdateJuly 8, 2007
NPI 1720178411 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 · G48002
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.
250 BON AIR RD, Greenbrae, CA 94904

Other Identifiers 2

Medicare UPINA50889
Medicaid00G480020CA

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 (Psychiatric/Mental Health)
250 BON AIR RD
GREENBRAE, CA 94904
Psychiatry & Neurology (Psychiatry)
250 BON AIR RD
GREENBRAE, CA 94904
Internal Medicine
250 BON AIR RD, 3RD FLOOR
GREENBRAE, CA 94904
Psychiatry & Neurology (Psychiatry)
250 BON AIR RD
GREENBRAE, CA 94904
Rehabilitation Practitioner
250 BON AIR RD
GREENBRAE, CA 94904
Counselor (Mental Health)
250 BON AIR RD
GREENBRAE, CA 94904
Advanced Practice Midwife
250 BON AIR RD
GREENBRAE, CA 94904
Registered Nurse
250 BON AIR RD
GREENBRAE, CA 94904

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 David Ernst's NPI number?

The NPI number for David Ernst is 1720178411. It was assigned to this individual provider in the NPPES registry on October 13, 2006.

Where is David Ernst located?

David Ernst practices at 250 Bon Air Rd, Greenbrae, CA 94904. The listed phone number is (415) 448-1500.

What is David Ernst'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 David Ernst was last updated on July 8, 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.