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DR. CHARLES E BARR M.D.
NPI 1861627531
Internal Medicine in South San Francisco, CA

Active since May 23, 2009
1 DNA WAY, MAIL STOP 66, SOUTH SAN FRANCISCO, CA 94080(650) 225-4867 Get Directions Write a Review

NPPES record last updated: May 5, 2011. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Charles E Barr M.d. NPPES

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

DR. CHARLES E BARR M.D. (NPI 1861627531) is an individual internal medicine provider in South San Francisco, California, licensed in New Jersey (25MA07288600) and active in the NPI registry since May 2009.

NPPES Registry Identity

NPI1861627531
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. CHARLES E BARRCredential: M.D.
Location Address1 DNA WAY, MAIL STOP 66South San Francisco, CA 94080-4918
Mailing Address1 Dna Way, Mail Stop 66South San Francisco, CA 94080-4918 · (650) 225-4867
Phone(650) 225-4867
Sole ProprietorYes
Enumeration DateMay 23, 2009
Last NPPES UpdateMay 5, 2011
✔ NPI 1861627531 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NJ · 25MA07288600
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.
1 DNA WAY, South San Francisco, CA 94080
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Other Providers at the Same Location NPPES 12

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. KETNA MISTRY MD
Pediatrics
1 DNA WAY, MS 8214
SOUTH SAN FRANCISCO, CA 94080
San Mateo County (650) 303-6097
DR. PATRICK SHAWN TWOMEY M.D.
Internal Medicine
1 DNA WAY
SOUTH SAN FRANCISCO, CA 94080
San Mateo County (650) 225-2580
DR. IAN L MCLEAN MBCHB PHD FACP FRCP
Internal Medicine (Rheumatology)
1 DNA WAY, GENENTECH
SOUTH SAN FRANCISCO, CA 94080
San Mateo County (650) 467-3356
SALENA QUAN NP
Nurse Practitioner (Occupational Health)
1 DNA WAY
SOUTH SAN FRANCISCO, CA 94080
San Mateo County (650) 225-3039
DR. HAROLD VINCENT BARRON MD
Specialist
1 DNA WAY
SOUTH SAN FRANCISCO, CA 94080
San Mateo County (650) 225-6993
DR. MARK CHRISTOPHER BENYUNES M.D.
Internal Medicine (Medical Oncology)
1 DNA WAY, MAILSTOP 444B
SOUTH SAN FRANCISCO, CA 94080
San Mateo County (650) 225-1628
ARUN VILLIVALAM, MD., INC.
General Practice
1 DNA WAY, BUILDING 5
SOUTH SAN FRANCISCO, CA 94080
San Mateo County (703) 760-0700
JAKOB DUPONT MD
Internal Medicine (Medical Oncology)
1 DNA WAY
SOUTH SAN FRANCISCO, CA 94080
San Mateo County (650) 255-9183

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 Charles Barr's NPI number?

The NPI number for Charles Barr is 1861627531. It was assigned to this individual provider in the NPPES registry on May 23, 2009.

Where is Charles Barr located?

Charles Barr practices at 1 Dna Way Mail Stop 66, South San Francisco, CA 94080. The listed phone number is (650) 225-4867.

What is Charles Barr'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 Charles Barr was last updated on May 5, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.