Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Kenneth J Rieger, M.D.

Orthopaedic Surgery Physician in Chatham, NJ · enumerated 2006.

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

National Provider Identifier

1275559700

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Registry record

Entity type Individual (Type 1)

Name Kenneth J Rieger

Credential M.D.

Sex Male

Practice address 40 Main St, Chatham, NJ, 07928

Phone (973) 635-0800

Fax (973) 635-6254

Enumeration date Jul 15, 2006

Last updated in NPPES Feb 18, 2026

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 25MA08296300 (NJ) Primary

207XS0117X Orthopaedic Surgery of the Spine Physician Allopathic & Osteopathic Physicians · License 25MA08579500 (NJ) 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
000000485768	Other	KY	ANTHEM
000000495770	Other	KY	ANTHEM (UNIV ORTHO ASSOC)
01062330B	Other	IN	CSR
200828910	Medicaid	IN	-
2785649000	Other	KY	PASSPORT ADVANTAGE
01062330A	Other	IN	PHYS.LICENSE
2785663000	Other	KY	PASSPORT ADVANTAGE (UOA)
50012859	Other	KY	PASSPORT (UNIV ORTHO ASSO
50012858	Other	KY	PASSPORT (SPINE INSTITUTE
25MA08296300	Other	NJ	LICENSE
40285	Other	KY	PHYSICIAN LICENSE
64125370	Medicaid	KY	-
BR9641172	Other	IN	DEA
P00384745	Other	KY	RAILROAD MEDICARE
BR9816717	Other	KY	DEA

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 Kenneth Rieger's NPI record?

Cross-check NPI 1275559700 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1275559700 active?

Yes, as of the latest NPPES snapshot, NPI 1275559700 is active (record last updated 2026-02-18).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-18.