Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Gary A Zetterberg, DC

Chiropractor in Amherst, NH · enumerated 2007.

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

National Provider Identifier

1578785598

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Registry record

Entity type Individual (Type 1)

Name Dr. Gary A Zetterberg

Credential DC

Sex Male

Practice address Amherst, NH, 03031

Phone (603) 673-9191

Fax (603) 673-6025

Enumeration date May 2, 2007

Last updated in NPPES May 28, 2008

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 10507570882A (NH) 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
0508466Y0NH01	Other	NH	BLUECROSS BLUE SHIELD
7032	Other	NH	CIGNA
7457521	Other	NH	AETNA

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 Gary Zetterberg's NPI record?

Cross-check NPI 1578785598 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1578785598 active?

Yes, as of the latest NPPES snapshot, NPI 1578785598 is active (record last updated 2008-05-28).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-05-28.