Martha Mejia, M.D.
NPI 1871520155 · Internal Medicine Physician · San Carlos, CA
Martha Mejia, M.D. is a Internal Medicine Physician provider in San Carlos, CA (NPI 1871520155).
Provider details
- NPI number
- 1871520155
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- G062720 (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
- 2006-06-26
- Last updated
- 2018-01-23
Frequently asked questions
- What is Martha Mejia's NPI number?
- Martha Mejia's National Provider Identifier (NPI) is 1871520155, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Martha Mejia's specialty?
- Martha Mejia is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Martha Mejia located?
- Martha Mejia's practice location on file with NPPES is 1660 San Carlos Ave, San Carlos, CA 94070-2022.
- What is Martha Mejia's phone number?
- The practice phone number listed in the NPPES registry for Martha Mejia is (650) 596-9085.
- Is Martha Mejia's NPI active?
- Yes — Martha Mejia's NPI (1871520155) is active in the NPPES registry as of the last update on 2018-01-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.