Arthritis and Rheumatology Center, Professional Corporation
NPI 1881803500 · Rheumatology Physician · San Ramon, CA
Arthritis and Rheumatology Center, Professional Corporation is a Rheumatology Physician organization in San Ramon, CA (NPI 1881803500).
Provider details
- NPI number
- 1881803500
- Entity type
- Organization
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Melissa Mcnamara, Physician(925) 242-1111
- License
- A79240 (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
- 2007-05-21
- Last updated
- 2008-03-07
Frequently asked questions
- What is Arthritis and Rheumatology Center, Professional Corporation's NPI number?
- Arthritis and Rheumatology Center, Professional Corporation's National Provider Identifier (NPI) is 1881803500, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Arthritis and Rheumatology Center, Professional Corporation?
- Arthritis and Rheumatology Center, Professional Corporation is classified in the NPPES registry as Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Arthritis and Rheumatology Center, Professional Corporation located?
- Arthritis and Rheumatology Center, Professional Corporation's practice location on file with NPPES is 2301 Camino Ramon Ste 286, San Ramon, CA 94583-2029.
- What is Arthritis and Rheumatology Center, Professional Corporation's phone number?
- The practice phone number listed in the NPPES registry for Arthritis and Rheumatology Center, Professional Corporation is (925) 242-1111.
- Who is the authorized official for Arthritis and Rheumatology Center, Professional Corporation?
- The authorized official listed on Arthritis and Rheumatology Center, Professional Corporation's NPPES record is Melissa Mcnamara, Physician. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Arthritis and Rheumatology Center, Professional Corporation's NPI active?
- Yes — Arthritis and Rheumatology Center, Professional Corporation's NPI (1881803500) is active in the NPPES registry as of the last update on 2008-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.