Alejandro Villegas, MD
Critical Care Medicine (Internal Medicine) Physician · Chula Vista, CA
Alejandro Villegas, MD is a critical care medicine (internal medicine) physician with a practice address in Chula Vista, California, and NPI 1558541235, issued on Nov 9, 2007. Check the license (California C144036, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alejandro Villegas
- Credential
- MD
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License number
- C144036 CA
Self-reported in NPPES; status is on the state search - Practice location
- 751 Medical Center CT, Chula Vista, CA 91911
- Phone
- (877) 897-8402
- Enumerated
- Nov 9, 2007
- Record last updated
- Jan 9, 2025
- Medicare enrollment
- Enrolled (PECOS I20170925000145); accepts Medicare assignment
- Medical or professional school
- Temple University School Of Medicine, 2004
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 723 in California → Look up another NPI →
Also registered at 751 Medical Center CT
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Aaron Abrahamsen, M.D.Emergency Medicine Physician1427204023
- Talal Al Quraini, M.D.Emergency Medical Services (Emergency Medicine) Physician1316955446
- Nancy Alexander-Wadel, RD, CDERegistered Dietitian1700913936
- Karrar Ali, D.O.Emergency Medicine Physician1164414827
- Crisamar Anunciado, NPFamily Nurse Practitioner1932386265
Verify Alejandro Villegas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C144036Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024
12 Medicare Part D claims, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D.
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.
Bills Medicare through 2 group practices
- Emergency And Acute Care Medical CorporationChula Vista, CA
- ON Call Specialists Medical Group OF San Diego IncSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alejandro Villegas among 723 critical care medicine (internal medicine) physician records in California
Alejandro Villegas, MD is one of 723 critical care medicine (internal medicine) physician records with a practice address in California. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 40% of them.
- NPI issued2007 · 40% of these records are older, 46% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2004 · median 2005 among the 559 with a school on file
- Record last updated2025 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in California
There are 723 critical care medicine (internal medicine) physician records in California.
All 723 in California → Every provider in Chula Vista → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Christopher Jones, MDChula Vista, CA 919101700291390
- Jesse Robles, NPChula Vista, CA 919101780187229
- Gilbert Seda, M.D., PH.D.Chula Vista, CA 919101568436350
- Michelle Goodwin, MDLa Mesa, CA 919421518546316
- Barzan Mohedin, MDLa Mesa, CA 919421639235096
- Janak Patel, DOLa Mesa, CA 919421699358945
- Ahmed Salem, D.O.La Mesa, CA 919421578798013
- Oleg Sorokoumov, MDLa Mesa, CA 919421306870548
Common questions
What is Alejandro Villegas, MD's NPI number?
Alejandro Villegas, MD's National Provider Identifier (NPI) is 1558541235, issued on Nov 9, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Alejandro Villegas, MD located?
The NPPES record lists a practice address at 751 Medical Center CT, Chula Vista, CA, 91911. Phone: (877) 897-8402. Providers update this record themselves, so call before visiting.
How can I verify Alejandro Villegas, MD's license?
NPPES lists California license number C144036, 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 Alejandro Villegas, MD prescribe under Medicare Part D?
In 2024, Alejandro Villegas, MD had 12 Medicare Part D claims; the average among critical care medicine (internal medicine) physician prescribers was 696. Part D covers Medicare prescriptions only.
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.