Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Joseph H. Sack, M.D., P.C.

Q: What type of organization is Joseph H. Sack, M.D., P.C.?

Joseph H. Sack, M.D., P.C. is registered in NPPES as a Psychiatry Physician (its primary provider taxonomy).

Psychiatry Physician in Laconia, NH · enumerated 2008 · authorized official Joseph Sack, President.

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

National Provider Identifier

1811165814

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Registry record

Entity type Organization (Type 2)

Legal business name Joseph H. Sack, M.D., P.C.

Practice address 85 Spring St, Laconia, NH, 03246

Phone (603) 524-0069

Fax (603) 524-0069

Enumeration date Feb 13, 2008

Last updated in NPPES Feb 13, 2008

Taxonomy & classification

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License NH6017 (NH) Primary

Authorized official

Name Joseph Sack

Title President

Phone (603) 524-0069

Other identifiers

Identifier	Type	State	Issuer
2001455	Other	-	CIGNA BEHAVIORAL HEALTH
0106917Y0NH01	Other	-	ANTHEM BCBS

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

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Joseph H. Sack, M.D., P.C.?

Joseph H. Sack, M.D., P.C. is registered in NPPES as a Psychiatry Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-02-13.