Jan Diamond, MD
NPI 1326116898 · Family Medicine Physician · Richmond, CA
Enrolled with Medicare as Order and Referring Only - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jan Diamond, MD is a Family Medicine Physician provider in Richmond, CA (NPI 1326116898).
Provider details
- NPI number
- 1326116898
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- G57275 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$13,526 across 16 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 2344 6th StBerkeley, CA 94710-2412Phone: (510) 981-4100
Registry dates
- Enumerated
- 2006-12-01
- Last updated
- 2020-10-28
- Certified
- 2020-10-28
Frequently asked questions
- What is Jan Diamond's NPI number?
- Jan Diamond's National Provider Identifier (NPI) is 1326116898, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jan Diamond's specialty?
- Jan Diamond is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jan Diamond located?
- Jan Diamond's practice location on file with NPPES is 225 Western Dr, Richmond, CA 94801-4015.
- What is Jan Diamond's phone number?
- The practice phone number listed in the NPPES registry for Jan Diamond is (415) 609-5152.
- Does Jan Diamond accept Medicare?
- Jan Diamond is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jan Diamond's NPI active?
- Yes — Jan Diamond's NPI (1326116898) is active in the NPPES registry as of the last update on 2020-10-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.