Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Marcus Nynas, D.C.

Chiropractor in Billings, MT · enumerated 2006.

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

National Provider Identifier

1164511655

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Registry record

Entity type Individual (Type 1)

Name Dr. Marcus Nynas

Credential D.C.

Sex Male

Practice address 1775 Spring Creek Dr, Billings, MT, 59102

Phone (406) 373-3500

Enumeration date Oct 12, 2006

Last updated in NPPES Aug 5, 2022

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 964 CHI (MT) Primary

DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier	Type	State	Issuer
41233	Other	MT	BCBS
0165490	Medicaid	MT	-
0165495	Medicaid	MT	-
1261964	Other	MT	MONTANA STATE FUND
002184987006	Other	-	UHC

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 NPI 1164511655 active?

Yes, as of the latest NPPES snapshot, NPI 1164511655 is active (record last updated 2022-08-05).

How do I verify Marcus Nynas's NPI record?

Cross-check NPI 1164511655 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-08-05.