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Dr. Frederick A Klein, M.D.

Gastroenterology Physician in Tucson, AZ · enumerated 2005.

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

National Provider Identifier

1962487876

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Registry record

Entity type Individual (Type 1)
Name Dr. Frederick A Klein
Credential M.D.
Sex Male
Practice address 7566 N La Cholla Blvd, Ste A, Tucson, AZ, 85741
Phone (520) 742-4139
Fax (520) 742-9618
Enumeration date Dec 13, 2005
Last updated in NPPES Jul 9, 2007

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 11761 (AZ) 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
AZ0025410 Other AZ BLUE CROSS BLUE SHIELD
XPY035840 Other AZ MEDI-CAL
223587 Medicaid AZ -
1Z0219 Other AZ HEALTHNET
696649 Other AZ AETNA

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

What is the NPI number for Frederick Klein?
The National Provider Identifier (NPI) for Frederick Klein is 1962487876, a Type 1 (individual) record in the CMS NPPES registry.
Where does Frederick Klein practice?
The practice location on file with NPPES is in Tucson, AZ. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.