Stephen J Halpern & Jack Watson Mds
NPI 1851493761 · Family Medicine Physician · Santa Cruz, CA
Stephen J Halpern & Jack Watson Mds is a Family Medicine Physician organization in Santa Cruz, CA (NPI 1851493761).
Provider details
- NPI number
- 1851493761
- Entity type
- Organization
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Stephen Halpern, Owner(831) 425-0420
- License
- A65310 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-01
- Last updated
- 2007-09-04
Frequently asked questions
- What is Stephen J Halpern & Jack Watson Mds's NPI number?
- Stephen J Halpern & Jack Watson Mds's National Provider Identifier (NPI) is 1851493761, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Stephen J Halpern & Jack Watson Mds?
- Stephen J Halpern & Jack Watson Mds is classified in the NPPES registry as Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen J Halpern & Jack Watson Mds located?
- Stephen J Halpern & Jack Watson Mds's practice location on file with NPPES is 550a Water St, Santa Cruz, CA 95060.
- What is Stephen J Halpern & Jack Watson Mds's phone number?
- The practice phone number listed in the NPPES registry for Stephen J Halpern & Jack Watson Mds is (831) 425-0420.
- Who is the authorized official for Stephen J Halpern & Jack Watson Mds?
- The authorized official listed on Stephen J Halpern & Jack Watson Mds's NPPES record is Stephen Halpern, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Stephen J Halpern & Jack Watson Mds's NPI active?
- Yes — Stephen J Halpern & Jack Watson Mds's NPI (1851493761) is active in the NPPES registry as of the last update on 2007-09-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.