Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Robert David Tufft, MD

Geriatric Medicine (Internal Medicine) Physician in Oakland, CA · enumerated 2007 · practices at Internists Medical Group.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1619010121

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Registry record

Entity type Individual (Type 1)

Name Dr. Robert David Tufft

Credential MD

Sex Male

Practice address Oakland, CA, 94609

Phone (510) 444-2155

Fax (510) 444-0274

Enumeration date Feb 14, 2007

Last updated in NPPES Sep 11, 2025

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207RG0300X Geriatric Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License G0381130 (CA) Primary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License G0381130 (CA) Secondary

2083P0011X Undersea and Hyperbaric Medicine (Preventive Medicine) Physician Allopathic & Osteopathic Physicians · License G0381130 (CA) Secondary

MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
GR0027060	Medicaid	CA	—

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1619010121 active?

Yes — as of the latest NPPES snapshot, NPI 1619010121 is active (record last updated 2025-09-11).

How do I verify Robert Tufft's NPI record?

Cross-check NPI 1619010121 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Adam Benjamin Chiropractor · Oakland, CA NPI 1437245370 Internists Medical Group Undersea and Hyperbaric Medicine (Preventive Medicine) Physician · Oakland, CA NPI 1033313838 Tara Stoop Naturopath · Oakland, CA NPI 1003046533 Chantelle Lorenz Day Training/Habilitation Specialist · Oakland, CA NPI 1861852659

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.