Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Michael Akwasi Osei, M.D.

Physical Medicine & Rehabilitation Physician in Oak Lawn, IL · enumerated 2008.

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

National Provider Identifier

1710138599

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Registry record

Entity type Individual (Type 1)

Name Dr. Michael Akwasi Osei

Credential M.D.

Sex Male

Practice address 4440 W 95th St, Oak Lawn, IL, 60453

Phone (708) 684-5428

Enumeration date Oct 10, 2008

Last updated in NPPES Sep 27, 2017

Taxonomy & licenses

208100000X Physical Medicine & Rehabilitation Physician Allopathic & Osteopathic Physicians · License 125049608 (IL) Secondary

208100000X Physical Medicine & Rehabilitation Physician Allopathic & Osteopathic Physicians · License 036123190 (IL) 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
036123190	Medicaid	IL	-
O200-5417-5340	Other	IL	DLN

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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Michael Osei?

Michael Osei is registered in NPPES with the primary taxonomy of Physical Medicine & Rehabilitation Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-09-27.