Alexander Mejia, M.D.
Obstetrics & Gynecology Physician · El Segundo, CA
Alexander Mejia, M.D. is an obstetrics & gynecology physician with a practice address in El Segundo, California, and NPI 1790910651, issued on May 21, 2009. Check the license (California C194828, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alexander Mejia
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- C194828 CA
ME1150657 FL
Self-reported in NPPES; status is on the state search - Practice location
- 2110 E EL Segundo Blvd Ste 220, El Segundo, CA 90245
- Phone
- (310) 784-8745
- Enumerated
- May 21, 2009
- Record last updated
- Mar 26, 2025
- Fax
- (310) 893-0431
- Medicare enrollment
- Enrolled (PECOS I20241220002664); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 2110 E EL Segundo Blvd Ste 220
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Savannah Kimball, MDObstetrics & Gynecology Physician1134625866
- Aviv Tarrab Herzlich, MDObstetrics & Gynecology Physician1588040794
Verify Alexander Mejia in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C194828Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
17% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
137 Medicare Part D claims for 50 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.
Most prescribed
- Alendronate Sodium17 claims
- Ibuprofen17 claims
- Clotrimazole-Betamethasone15 claims
- Premarin14 claims
- Misoprostol11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 89.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $225.69
13 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Torrance Health Association IncEl Segundo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alexander Mejia among 5,088 obstetrics & gynecology physician records in California
Alexander Mejia, M.D. is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 66% of them.
- NPI issued2009 · 66% of these records are older, 30% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2004 · median 2004 among the 2,700 with a school on file
- Record last updated2025 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in California
There are 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in El Segundo → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Savannah Kimball, MDEl Segundo, CA 902451134625866
- Aviv Tarrab Herzlich, MDEl Segundo, CA 902451588040794
- Gwen Allen, M.D.Gardena, CA 902471306942909
- Fataneh Amidi, MDDowney, CA 902421134357981
- Shant Ashdjian, M.D.Downey, CA 902421841502457
- Elizabeth Brundin, MDDowney, CA 902421790456283
- Hemaxi Desai, DODowney, CA 902421205566171
- Liza Jaime, M.D.Downey, CA 902421629380233
Common questions
What is Alexander Mejia, M.D.'s NPI number?
Alexander Mejia, M.D.'s National Provider Identifier (NPI) is 1790910651, issued on May 21, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Alexander Mejia, M.D. located?
The NPPES record lists a practice address at 2110 E EL Segundo Blvd Ste 220, El Segundo, CA, 90245. Phone: (310) 784-8745. Providers update this record themselves, so call before visiting.
How can I verify Alexander Mejia, M.D.'s license?
NPPES lists California license number C194828, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Alexander Mejia, M.D. prescribe under Medicare Part D?
In 2024, Alexander Mejia, M.D. had 137 Medicare Part D claims for 50 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
What is Alexander Mejia, M.D.'s MIPS final score?
The 2023 MIPS final score is 89.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.