Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Clifford Lewis Posman, M.D.

Orthopaedic Surgery Physician in Oak Ridge, TN · enumerated 2006.

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

National Provider Identifier

1669449658

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Registry record

Entity type Individual (Type 1)

Name Dr. Clifford Lewis Posman

Credential M.D.

Sex Male

Practice address 90 Vermont Ave, Suite 300, Oak Ridge, TN, 37830

Phone (865) 481-2541

Fax (865) 483-8151

Enumeration date Mar 8, 2006

Last updated in NPPES Jul 12, 2010

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License MD17008 (TN) 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
TN0157	Other	TN	JOHN DEERE HEALTHCARE
TN0187	Other	TN	JOHN DEERE HEALTHCARE
100010039	Other	TN	TENNCARE
4034768	Other	TN	AETNA
200030078	Other	TN	RAILROAD MEDICARE
3019362	Medicaid	TN	-
3071419	Other	TN	BLUE CROSS BLUE SHIELD
293338	Other	TN	UNITED HEALTH CARE

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 Clifford Posman's NPI record?

Cross-check NPI 1669449658 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1669449658 active?

Yes, as of the latest NPPES snapshot, NPI 1669449658 is active (record last updated 2010-07-12).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-07-12.