Mahmoud Youssef Abdallah, DO
Pulmonary Disease Physician · Garden Grove, CA
Mahmoud Youssef Abdallah, DO is a pulmonary disease physician with a practice address in Garden Grove, California, and NPI 1871014027, issued on Jun 28, 2017. Check the license (California 20A16964, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mahmoud Youssef Abdallah
- Credential
- DO
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License number
- 20A16964 CA
Self-reported in NPPES; status is on the state search - Practice location
- 12462 Brookhurst St Ste A&B, Garden Grove, CA 92840
- Phone
- (714) 636-9850
- Enumerated
- Jun 28, 2017
- Record last updated
- Sep 8, 2023
- Medicare enrollment
- Enrolled (PECOS I20231004004144); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 1,443 in California → Look up another NPI →
Verify Mahmoud Youssef Abdallah in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A16964Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% fewer Medicare Part D claims than the average pulmonary disease physician in 2024
366 Medicare Part D claims for 92 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims.
Most prescribed
- Trelegy Ellipta29 claims
- Montelukast Sodium24 claims
- Pantoprazole Sodium23 claims
- Spiriva Handihaler16 claims
- Fluticasone Propionate15 claims
- Levothyroxine Sodium14 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
- Pathway Medical Group IncGarden Grove, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mahmoud Youssef Abdallah among 1,443 pulmonary disease physician records in California
Mahmoud Youssef Abdallah, DO is one of 1,443 pulmonary disease physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 89% of them.
- NPI issued2017 · 89% of these records are older, 7% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2017 · median 2002 among the 1,061 with a school on file
- Record last updated2023 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pulmonary Disease Physician providers in California
There are 1,443 pulmonary disease physician records in California.
All 1,443 in California → Every provider in Garden Grove → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- James Hardeman, M.D.Fullerton, CA 928351043399017
- Farhan Khabaz, MDFullerton, CA 928351427159458
- Edward Lawton, M.D..Fullerton, CA 928351801882261
- Louis McNabb, M.D.Fullerton, CA 928351346329323
- Andy Tran, M.D.Fullerton, CA 928351326059882
- Mark Weissig, M.D.Fullerton, CA 928351649266032
- Julie Yoo, M.D., M.P.H.Fullerton, CA 928351760742001
- Mohamad Abdelfattah, MDFullerton, CA 928311134539711
Common questions
What is Mahmoud Youssef Abdallah, DO's NPI number?
Mahmoud Youssef Abdallah, DO's National Provider Identifier (NPI) is 1871014027, issued on Jun 28, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Mahmoud Youssef Abdallah, DO located?
The NPPES record lists a practice address at 12462 Brookhurst St Ste A&B, Garden Grove, CA, 92840. Phone: (714) 636-9850. Providers update this record themselves, so call before visiting.
How can I verify Mahmoud Youssef Abdallah, DO's license?
NPPES lists California license number 20A16964, 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 Mahmoud Youssef Abdallah, DO prescribe under Medicare Part D?
In 2024, Mahmoud Youssef Abdallah, DO had 366 Medicare Part D claims for 92 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. 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.