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DR. FREDERICK J. DUMAS III M.D.
NPI 1639268782
Internal Medicine in Mendocino, CA

Active since October 12, 2006
940 UKIAH ST., BOX 1129, MENDOCINO, CA 95460(707) 937-4202(707) 937-6003 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 30, 2026.

About Dr. Frederick J. Dumas Iii M.d. NPPES

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

DR. FREDERICK J. DUMAS III M.D. (NPI 1639268782) is an individual internal medicine provider in Mendocino, California, licensed in California (A32054) and active in the NPI registry since October 2006.

NPPES Registry Identity

NPI1639268782
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. FREDERICK J. DUMAS IIICredential: M.D.
Location Address940 UKIAH ST., BOX 1129Mendocino, CA 95460
Mailing Address940 Ukiah StreetMendocino, CA 95460 · (707) 937-4202 · Fax (707) 937-6003
Phone(707) 937-4202
Fax(707) 937-6003
Sole ProprietorYes
Enumeration DateOctober 12, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1639268782 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 · A32054
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.
940 UKIAH ST., Mendocino, CA 95460
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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 Frederick Dumas's NPI number?

The NPI number for Frederick Dumas is 1639268782. It was assigned to this individual provider in the NPPES registry on October 12, 2006.

Where is Frederick Dumas located?

Frederick Dumas practices at 940 Ukiah St. Box 1129, Mendocino, CA 95460. The listed phone number is (707) 937-4202.

What is Frederick Dumas'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 Frederick Dumas 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.