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Maria Clara Calayag, M.D.
NPI 1538295076 · Pediatrics Physician · Oakland, CA
Maria Clara Calayag, M.D. is a Pediatrics Physician provider in Oakland, CA (NPI 1538295076).
Provider details
- NPI number
- 1538295076
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A53708 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(89/100 index)
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
6955 Foothill Blvd
Suite 200
Oakland, CA 94605-2409
Phone: (510) 567-5800
Fax: (510) 568-0225
Street-level locationGet directions
Mailing address
Po Box 5595
Hercules, CA 94547-5595
Registry dates
- Enumerated
- 2007-02-26
- Last updated
- 2007-07-08
Frequently asked questions
- What is Maria Clara Calayag's NPI number?
- Maria Clara Calayag's National Provider Identifier (NPI) is 1538295076, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Clara Calayag's specialty?
- Maria Clara Calayag is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Maria Clara Calayag located?
- Maria Clara Calayag's practice location on file with NPPES is 6955 Foothill Blvd, Oakland, CA 94605-2409.
- What is Maria Clara Calayag's phone number?
- The practice phone number listed in the NPPES registry for Maria Clara Calayag is (510) 567-5800.
- Is Maria Clara Calayag's NPI active?
- Yes — Maria Clara Calayag's NPI (1538295076) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.