NPPES file of Aug 9, 2026

Ronnie Alas, M.D.

Internal Medicine Physician · Santa Ana, CA

Ronnie Alas, M.D. is an internal medicine physician with a practice address in Santa Ana, California, and NPI 1306267026, issued on Dec 23, 2013. Check the license (California A132456, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1306267026
Name
Ronnie Alas
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A132456 CA
Self-reported in NPPES; status is on the state search
Practice location
3501 S Harbor Blvd, Santa Ana, CA 92704
Phone
(714) 929-2300
Enumerated
Dec 23, 2013
Record last updated
Dec 2, 2025
Medicare enrollment
Enrolled (PECOS I20160108000564); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3501 S Harbor Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Joel Arter, MDFamily Medicine Physician1942512744
  2. Eileen May Barraza, N.P.Nurse Practitioner1487105243
  3. Rama Bathala-Patel, MDFamily Medicine Physician1992853774
  4. Charles Egesdal, M.D.Pediatrics Physician1861925471
  5. Emad Hashemi, M.D.Obstetrics & Gynecology Physician1568492759
  6. Robin Hatam, D.O.Internal Medicine Physician1194053785

Verify Ronnie Alas in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A132456    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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99% fewer Medicare Part D claims than the average internal medicine physician in 2024

24 Medicare Part D claims for 11 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Ronnie Alas24
  2. Specialty average3,176

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

  1. Healthcare Partners Affiliates Medical GroupSanta Ana, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Internal Medicine Physician providers in California

There are 17,696 internal medicine physician records in California.

All 17,696 in California → Every provider in Santa Ana →

Other internal medicine physician records in California

  1. Jacob Aaron, MDSan Francisco, CA1407202518
  2. Alistair Aaronson, MDStanford, CA1457628760
  3. Jose Abad., MDSacramento, CA1144607219
  4. Donna Abare, MDOakland, CA1386722155
  5. Marce AbareScotts Valley, CA1457744708
  6. Samuel Abarte, M.D.Chula Vista, CA1578535498
  7. Alexander Abary, MDLong Beach, CA1104995919
  8. Luba Abascal, MDSan Francisco, CA1023180874
  9. Michael Abate, MDSacramento, CA1548248131
  10. Wali Abawi, D.O.Joshua Tree, CA1104362268

Common questions

What is Ronnie Alas, M.D.'s NPI number?

Ronnie Alas, M.D.'s National Provider Identifier (NPI) is 1306267026, issued on Dec 23, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Ronnie Alas, M.D. located?

The NPPES record lists a practice address at 3501 S Harbor Blvd, Santa Ana, CA, 92704. Phone: (714) 929-2300. Providers update this record themselves, so call before visiting.

How can I verify Ronnie Alas, M.D.'s license?

NPPES lists California license number A132456, 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 Ronnie Alas, M.D. prescribe under Medicare Part D?

In 2024, Ronnie Alas, M.D. had 24 Medicare Part D claims for 11 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.