Miguel Alejandro Casillas, MD
Family Medicine Physician · San Diego, CA
Miguel Alejandro Casillas, MD is a family medicine physician with a practice address in San Diego, California, and NPI 1053676395, issued on Jul 12, 2012. Check the license (California A119653, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Miguel Alejandro Casillas
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A119653 CA
Self-reported in NPPES; status is on the state search - Practice location
- 200 W Arbor Dr, San Diego, CA 92103
- Phone
- (619) 543-5476
- Enumerated
- Jul 12, 2012
- Record last updated
- Dec 6, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20120801000539); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 200 W Arbor Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Miguel Alejandro Casillas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A119653Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
40% more Medicare Part D claims than the average family medicine physician in 2024
4,958 Medicare Part D claims for 676 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 144 claims were for opioids.
Most prescribed
- Atorvastatin Calcium456 claims
- Metformin Hcl232 claims
- Amlodipine Besylate214 claims
- Rosuvastatin Calcium214 claims
- Lisinopril200 claims
- Losartan Potassium192 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.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Miguel Alejandro Casillas among 17,133 family medicine physician records in California
Miguel Alejandro Casillas, MD is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 66% of them.
- NPI issued2012 · 66% of these records are older, 32% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2007 · median 2005 among the 10,652 with a school on file
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
780 family medicine physician records list a practice address in San Diego
They are 780 of the 52,937 NPPES records with a practice address in San Diego, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in San Diego → Family Medicine Physician nationwide →
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Common questions
What is Miguel Alejandro Casillas, MD's NPI number?
Miguel Alejandro Casillas, MD's National Provider Identifier (NPI) is 1053676395, issued on Jul 12, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Miguel Alejandro Casillas, MD located?
The NPPES record lists a practice address at 200 W Arbor Dr, San Diego, CA, 92103. Phone: (619) 543-5476. Providers update this record themselves, so call before visiting.
How can I verify Miguel Alejandro Casillas, MD's license?
NPPES lists California license number A119653, 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 Miguel Alejandro Casillas, MD prescribe under Medicare Part D?
In 2024, Miguel Alejandro Casillas, MD had 4,958 Medicare Part D claims for 676 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.