Raymond J. Esparza MD Inc.
NPI 1578648523 · Internal Medicine Physician · San Dimas, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Raymond J. Esparza MD Inc. is a Internal Medicine Physician organization in San Dimas, CA (NPI 1578648523).
Provider details
- NPI number
- 1578648523
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Raymond Esparza, Ceo(909) 394-0044
- License
- G77594 (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
- 2006-10-26
- Last updated
- 2007-09-10
Frequently asked questions
- What is Raymond J. Esparza MD Inc.'s NPI number?
- Raymond J. Esparza MD Inc.'s National Provider Identifier (NPI) is 1578648523, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Raymond J. Esparza MD Inc.?
- Raymond J. Esparza MD Inc. is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Raymond J. Esparza MD Inc. located?
- Raymond J. Esparza MD Inc.'s practice location on file with NPPES is 1330 W Covina Blvd, San Dimas, CA 91773-3200.
- What is Raymond J. Esparza MD Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Raymond J. Esparza MD Inc. is (909) 394-0044.
- Does Raymond J. Esparza MD Inc. accept Medicare?
- Raymond J. Esparza MD 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 Raymond J. Esparza MD Inc.?
- The authorized official listed on Raymond J. Esparza MD Inc.'s NPPES record is Raymond Esparza, Ceo. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Raymond J. Esparza MD Inc.'s NPI active?
- Yes — Raymond J. Esparza MD Inc.'s NPI (1578648523) is active in the NPPES registry as of the last update on 2007-09-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.