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Gregory R. Mack MD, Inc

Orthopaedic Surgery Physician in San Diego, CA · enumerated 2006 · authorized official Gregory Mack, Owner.

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

National Provider Identifier

1962589234

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Registry record

Entity type Organization (Type 2)
Legal business name Gregory R. Mack MD, Inc
Practice address 8008 Frost St, Suite 403, San Diego, CA, 92123
Phone (858) 715-9200
Fax (858) 715-1230
Enumeration date Nov 1, 2006
Last updated in NPPES Sep 22, 2017

Taxonomy & classification

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License G37547 (CA) Primary
2086S0105X Surgery of the Hand (Surgery) Physician Allopathic & Osteopathic Physicians · License G37547 (CA) Secondary

Authorized official

Name Gregory Mack
Title Owner
Phone (858) 715-9200

Other identifiers

Identifier Type State Issuer
00G375470 Medicaid CA -
W19719 Other CA MEDICARE PTAN

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 the NPI number for Gregory R. Mack MD, Inc?
The NPI for Gregory R. Mack MD, Inc is 1962589234, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Gregory R. Mack MD, Inc?
NPPES lists Gregory Mack (Owner) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-09-22.