Chris Tsimerekis, M.D., Inc.
NPI 1801907704 · Endocrinology, Diabetes & Metabolism Physician · Fountain Valley, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chris Tsimerekis, M.D., Inc. is a Endocrinology, Diabetes & Metabolism Physician organization in Fountain Valley, CA (NPI 1801907704).
Provider details
- NPI number
- 1801907704
- Entity type
- Organization
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Chris Tsimerekis, President(714) 549-9927
- License
- G811410 (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
- 2006-08-31
- Last updated
- 2012-12-06
Frequently asked questions
- What is Chris Tsimerekis, M.D., Inc.'s NPI number?
- Chris Tsimerekis, M.D., Inc.'s National Provider Identifier (NPI) is 1801907704, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Chris Tsimerekis, M.D., Inc.?
- Chris Tsimerekis, M.D., Inc. is classified in the NPPES registry as Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Chris Tsimerekis, M.D., Inc. located?
- Chris Tsimerekis, M.D., Inc.'s practice location on file with NPPES is 11100 Warner Ave, Fountain Valley, CA 92708-7506.
- What is Chris Tsimerekis, M.D., Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Chris Tsimerekis, M.D., Inc. is (714) 549-9927.
- Does Chris Tsimerekis, M.D., Inc. accept Medicare?
- Chris Tsimerekis, M.D., Inc. 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 Chris Tsimerekis, M.D., Inc.?
- The authorized official listed on Chris Tsimerekis, M.D., Inc.'s NPPES record is Chris Tsimerekis, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Chris Tsimerekis, M.D., Inc.'s NPI active?
- Yes — Chris Tsimerekis, M.D., Inc.'s NPI (1801907704) is active in the NPPES registry as of the last update on 2012-12-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.