California Kidney Specialists
NPI 1760497457 · Nephrology Physician · San Dimas, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
California Kidney Specialists is a Nephrology Physician organization in San Dimas, CA (NPI 1760497457).
Provider details
- NPI number
- 1760497457
- Entity type
- Organization
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Roya Tahmassebi, Office Manager(909) 542-2770
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Internal Medicine Physician207R00000X
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
- 2006-07-30
- Last updated
- 2012-03-16
Frequently asked questions
- What is California Kidney Specialists's NPI number?
- California Kidney Specialists's National Provider Identifier (NPI) is 1760497457, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is California Kidney Specialists?
- California Kidney Specialists is classified in the NPPES registry as Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is California Kidney Specialists located?
- California Kidney Specialists's practice location on file with NPPES is 1335 W Cypress Ave, San Dimas, CA 91773-3537.
- What is California Kidney Specialists's phone number?
- The practice phone number listed in the NPPES registry for California Kidney Specialists is (909) 542-2770.
- Does California Kidney Specialists accept Medicare?
- California Kidney Specialists is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for California Kidney Specialists?
- The authorized official listed on California Kidney Specialists's NPPES record is Roya Tahmassebi, Office Manager. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is California Kidney Specialists's NPI active?
- Yes — California Kidney Specialists's NPI (1760497457) is active in the NPPES registry as of the last update on 2012-03-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.