Alaa Masjune, MD
Family Medicine Physician · San Ysidro, CA
Alaa Masjune, MD is a family medicine physician with a practice address in San Ysidro, California, and NPI 1063895324, issued on Jul 6, 2015. Check the license (California C204385, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alaa Masjune
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- C204385 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4004 Beyer Blvd, San Ysidro, CA 92173
- Phone
- (619) 662-4100
- Enumerated
- Jul 6, 2015
- Record last updated
- Apr 7, 2026
- Medicare enrollment
- Enrolled (PECOS I20260526001048); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 4004 Beyer Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lizbeth AcunaCase Manager/Care Coordinator1134363187
- Noemi Arrieta, DOFamily Medicine Physician1912223496
- Salvador Balvaneda, IMFTMarriage & Family Therapist1659413086
- Vanessa Bastidas, MD, MPHFamily Medicine Physician1831893478
- Rita BedermanMarriage & Family Therapist1376684142
- Justin Bennink, M.D.Family Medicine Physician1083033146
Verify Alaa Masjune in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C204385Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average family medicine physician in 2024
293 Medicare Part D claims for 46 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Atorvastatin Calcium23 claims
- Pravastatin Sodium16 claims
- Lisinopril14 claims
- Metformin Hcl14 claims
- Hydrochlorothiazide13 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.
Industry payments in 2024: $87.55
4 payments; by number, the most common kind was food and beverage; the largest payer was Exact Sciences Corporation. The 55,478 providers of this specialty with any payment received $902.55 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 2 group practices
- Centro DE Salud DE LA Comunidad DE San Ysidro, Inc.San Diego, CA
- Innovista Provider Group Texas PARichardson, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alaa Masjune among 17,133 family medicine physician records in California
Alaa Masjune, 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 2015, is newer than 74% of them.
- NPI issued2015 · 74% of these records are older, 24% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2003 · median 2005 among the 10,652 with a school on file
- Record last updated2026 · 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).
25 family medicine physician records list a practice address in San Ysidro
They are 25 of the 218 NPPES records with a practice address in San Ysidro, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in San Ysidro → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Noemi Arrieta, DOSan Ysidro, CA 921731912223496
- James Cevallos, MDSan Ysidro, CA 921731720181829
- Jay Downey, M.D.San Ysidro, CA 921731073610960
- Cesar Duque Gomez, MDSan Ysidro, CA 921731154513877
- Karla Garcia, M.D., M.P.H.San Ysidro, CA 921731154647410
- Aleka Heinrici, MDSan Ysidro, CA 921731780979120
- Jefferson Hendrix, MDSan Ysidro, CA 921731235142738
- Jorge Mata, MDSan Ysidro, CA 921731528150778
Common questions
What is Alaa Masjune, MD's NPI number?
Alaa Masjune, MD's National Provider Identifier (NPI) is 1063895324, issued on Jul 6, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Alaa Masjune, MD located?
The NPPES record lists a practice address at 4004 Beyer Blvd, San Ysidro, CA, 92173. Phone: (619) 662-4100. Providers update this record themselves, so call before visiting.
How can I verify Alaa Masjune, MD's license?
NPPES lists California license number C204385, 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 Alaa Masjune, MD prescribe under Medicare Part D?
In 2024, Alaa Masjune, MD had 293 Medicare Part D claims for 46 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.