Joseph Mares, M.D.
NPI 1316186323 · Pediatrics Physician · Downey, CA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Mares, M.D. is a Pediatrics Physician provider in Downey, CA (NPI 1316186323).
Provider details
- NPI number
- 1316186323
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A106615 (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
17 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 4650 W Sunset BlvdMs#68Los Angeles, CA 90027-6062Phone: (310) 910-5300
Registry dates
- Enumerated
- 2009-02-13
- Last updated
- 2021-12-15
- Certified
- 2021-09-11
Frequently asked questions
- What is Joseph Mares's NPI number?
- Joseph Mares's National Provider Identifier (NPI) is 1316186323, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Mares's specialty?
- Joseph Mares is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Mares located?
- Joseph Mares's practice location on file with NPPES is 9449 Imperial Hwy Ste 332, Downey, CA 90242-2814.
- What is Joseph Mares's phone number?
- The practice phone number listed in the NPPES registry for Joseph Mares is (562) 657-2141.
- Does Joseph Mares accept Medicare?
- Joseph Mares is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Mares's NPI active?
- Yes — Joseph Mares's NPI (1316186323) is active in the NPPES registry as of the last update on 2021-12-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.