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Stephen J Halpern & Jack Watson Mds

Family Medicine Physician in Santa Cruz, CA · enumerated 2006 · authorized official Stephen Halpern, Owner.

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

National Provider Identifier

1851493761

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Registry record

Entity type Organization (Type 2)
Legal business name Stephen J Halpern & Jack Watson Mds
Practice address 550a Water St, Santa Cruz, CA, 95060
Phone (831) 425-0420
Fax (831) 425-0185
Enumeration date Sep 1, 2006
Last updated in NPPES Sep 4, 2007

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License A22837 (CA) Primary
207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License A65310 (CA) Secondary
207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 20A8853 (CA) Secondary
207QA0000X Adolescent Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians · License A88228 (CA) Secondary

Authorized official

Name Stephen Halpern
Title Owner
Phone (831) 425-0420

Other identifiers

Identifier Type State Issuer
GR0100850 Medicaid CA -

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 current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2007-09-04. Verify at npiregistry.cms.hhs.gov.
Where is Stephen J Halpern & Jack Watson Mds located?
The practice location on file with NPPES is in Santa Cruz, CA.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-09-04.