Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Robert A. Allen, M.D.

Internal Medicine Physician in Sacramento, CA · enumerated 2006.

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

National Provider Identifier

1770599706

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Registry record

Entity type Individual (Type 1)

Name Robert A. Allen

Credential M.D.

Sex Male

Practice address 3160 Folsom Blvd, Sacramento, CA, 95816

Phone (916) 733-5336

Fax (916) 733-5385

Enumeration date Jul 31, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A26723 (CA) Primary

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
1288781	Other	CA	GREAT WEST
3042613	Other	CA	CIGNA
000810342855	Other	CA	PHCS
00A267230	Other	CA	BLUE SHIELD
500260	Other	CA	HEALTH NET
00A267230	Medicaid	CA	-
A26723	Other	CA	BLUE CROSS
90026131	Other	CA	PACIFICARE
1073199	Other	CA	FIRST HEALTH
4507060	Other	CA	AETNA
792441	Other	CA	UNITED HEALTHCARE
MCMG123300	Other	CA	WESTERN HEALTH ADVANTAGE
1648	Other	CA	INTERPLAN

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.

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Frequently asked questions

How do I verify Robert Allen's NPI record?

Cross-check NPI 1770599706 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1770599706 active?

Yes, as of the latest NPPES snapshot, NPI 1770599706 is active (record last updated 2007-07-08).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.