Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Richard L Klassen, M.D.

Family Medicine Physician in Tucson, AZ · enumerated 2006 · practices at Silverbell Eyecare Center, Pllc.

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

National Provider Identifier

1770699100

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Registry record

Entity type Individual (Type 1)

Name Richard L Klassen

Credential M.D.

Sex Male

Practice address 2500 N Silverbell Rd, Suite 100, Tucson, AZ, 85745

Phone (520) 777-2288

Fax (520) 777-2290

Enumeration date Aug 21, 2006

Last updated in NPPES Jul 22, 2011

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 42615 (AZ) Primary

2083X0100X Occupational Medicine Physician Allopathic & Osteopathic Physicians · License 42615 (AZ) 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
489225	Medicaid	AZ	-

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

How do I verify Richard Klassen's NPI record?

Cross-check NPI 1770699100 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1770699100 active?

Yes, as of the latest NPPES snapshot, NPI 1770699100 is active (record last updated 2011-07-22).

Other providers at this practice address

Browse all →

Michael Beals Family Medicine Physician · Tucson, AZ NPI 1346226065 Moira Shannon General Practice Physician · Tucson, AZ NPI 1346228996 Maureen Storer Physical Therapist · Tucson, AZ NPI 1679788475 Silverbell Eyecare Center, Pllc Optometrist · Tucson, AZ NPI 1316260482 Shalynn Jessup Physical Therapy Assistant · Tucson, AZ NPI 1184089591 Edgardo Martan Physical Therapy Assistant · Tucson, AZ NPI 1508310400

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-07-22.