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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Andrew Russell Olshen, MD

Physical Medicine & Rehabilitation Physician in Muskogee, OK · enumerated 2006 · practices at Rehabilitation Associates of Muskogee.

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

National Provider Identifier

1386663532

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Registry record

Entity type Individual (Type 1)
Name Dr. Andrew Russell Olshen
Credential MD
Sex Male
Practice address 333 S 36th St, Muskogee, OK, 74401
Phone (918) 682-2815
Fax (918) 682-8643
Enumeration date Jul 19, 2006
Last updated in NPPES Nov 12, 2008

Taxonomy & licenses

208100000X Physical Medicine & Rehabilitation Physician Allopathic & Osteopathic Physicians · License 23633 (OK) 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
200019260A Medicaid OK -
31758 Other OK BNDD REGISTRATION

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 Andrew Olshen's NPI record?
Cross-check NPI 1386663532 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1386663532 active?
Yes, as of the latest NPPES snapshot, NPI 1386663532 is active (record last updated 2008-11-12).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-11-12.