Arnold Jacobson, M.D.
NPI 1528109311 · Reproductive Endocrinology Physician · Alamo, CA
Arnold Jacobson, M.D. is a Reproductive Endocrinology Physician provider in Alamo, CA (NPI 1528109311).
Provider details
- NPI number
- 1528109311
- Entity type
- Individual
- Primary specialty
- Reproductive Endocrinology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G18385 (CA)
Specialties & taxonomies
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
- 2007-02-12
- Last updated
- 2007-07-08
Frequently asked questions
- What is Arnold Jacobson's NPI number?
- Arnold Jacobson's National Provider Identifier (NPI) is 1528109311, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Arnold Jacobson's specialty?
- Arnold Jacobson is listed in the NPPES registry with a primary specialty of Reproductive Endocrinology Physician (Allopathic & Osteopathic Physicians).
- Where is Arnold Jacobson located?
- Arnold Jacobson's practice location on file with NPPES is 2476 Alamo Glen Dr, Alamo, CA 94507-2771.
- What is Arnold Jacobson's phone number?
- The practice phone number listed in the NPPES registry for Arnold Jacobson is (925) 831-2542.
- Is Arnold Jacobson's NPI active?
- Yes — Arnold Jacobson's NPI (1528109311) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.