Tarcisio C. Diaz, M.D. a Medical Corporation
NPI 1891135752 · Endocrinology, Diabetes & Metabolism Physician · Corona, CA
Tarcisio C. Diaz, M.D. a Medical Corporation is a Endocrinology, Diabetes & Metabolism Physician organization in Corona, CA (NPI 1891135752).
Provider details
- NPI number
- 1891135752
- Entity type
- Organization
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Tarcisio Diaz, President(951) 738-9081
- License
- A46295 (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
13 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
- 2013-06-25
- Last updated
- 2013-06-25
Frequently asked questions
- What is Tarcisio C. Diaz, M.D. a Medical Corporation's NPI number?
- Tarcisio C. Diaz, M.D. a Medical Corporation's National Provider Identifier (NPI) is 1891135752, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Tarcisio C. Diaz, M.D. a Medical Corporation?
- Tarcisio C. Diaz, M.D. a Medical Corporation is classified in the NPPES registry as Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Tarcisio C. Diaz, M.D. a Medical Corporation located?
- Tarcisio C. Diaz, M.D. a Medical Corporation's practice location on file with NPPES is 900 S Main St, Corona, CA 92882-3401.
- What is Tarcisio C. Diaz, M.D. a Medical Corporation's phone number?
- The practice phone number listed in the NPPES registry for Tarcisio C. Diaz, M.D. a Medical Corporation is (951) 738-9081.
- Who is the authorized official for Tarcisio C. Diaz, M.D. a Medical Corporation?
- The authorized official listed on Tarcisio C. Diaz, M.D. a Medical Corporation's NPPES record is Tarcisio Diaz, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Tarcisio C. Diaz, M.D. a Medical Corporation's NPI active?
- Yes — Tarcisio C. Diaz, M.D. a Medical Corporation's NPI (1891135752) is active in the NPPES registry as of the last update on 2013-06-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.