Mazen Beydoun, DO
Internal Medicine Physician · Mesa, AZ
Mazen Beydoun, DO is an internal medicine physician with a practice address in Mesa, Arizona, and NPI 1972009686, issued on Apr 2, 2018. Check the license (Arizona 009033, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mazen Beydoun
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 009033 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 6644 E Baywood Ave, Mesa, AZ 85206
- Phone
- (480) 321-2000
- Enumerated
- Apr 2, 2018
- Record last updated
- Dec 2, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- A98640024 AZ
- Medicare enrollment
- Enrolled (PECOS I20211013000413); accepts Medicare assignment
- Medical or professional school
- Arizona College Of Osteopathic Medicine Mid Western University, 2018
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,853 in Arizona → Look up another NPI →
Also registered at 6644 E Baywood Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Firas Abbas, M.D. M.P.H.Internal Medicine Physician1336481407
- Hassan Abbas, D.O.Internal Medicine Physician1477294775
- Jose Acosta, RPARadiology Practitioner Assistant1376721076
- Melissa Albers, CRNACertified Registered Nurse Anesthetist1386183481
- Maria Alexov, M.D.Infectious Disease Physician1952361271
- Ayman Alhadheri, MDEmergency Medicine Physician1184205403
Verify Mazen Beydoun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 009033Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average internal medicine physician in 2024
550 Medicare Part D claims for 245 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 31 claims were for opioids.
Most prescribed
- Cefdinir50 claims
- Prednisone36 claims
- Atorvastatin Calcium29 claims
- Furosemide27 claims
- Metoprolol Tartrate27 claims
- Azithromycin26 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 92.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Banner - University Hospital Based Physicians LLCPhoenix, AZ
- Banner Hospital Based Physicians Arizona LLCMesa, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mazen Beydoun among 2,853 internal medicine physician records in Arizona
Mazen Beydoun, DO is one of 2,853 internal medicine physician records with a practice address in Arizona. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 77% of them.
- NPI issued2018 · 77% of these records are older, 21% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2018 · median 2003 among the 1,643 with a school on file
- Record last updated2021 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
157 internal medicine physician records list a practice address in Mesa
They are 157 of the 9,151 NPPES records with a practice address in Mesa, and 2,853 internal medicine physician records in Arizona.
All 2,853 in Arizona → Every provider in Mesa → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Michael Biscoe, MDMesa, AZ 852061538150321
- Veronica Bolick, NPMesa, AZ 852061164482998
- Derek Braun, MDMesa, AZ 852061861452328
- Steven Cervi-Skinner, MDMesa, AZ 852061619938032
- Hezekiah Chinwah, M.D.Mesa, AZ 852061992704266
- Saroj Kulkarni, MDMesa, AZ 852061457312563
- Armando Montero, MDMesa, AZ 852061699734087
- Dennis Moon, MDMesa, AZ 852061235199845
Common questions
What is Mazen Beydoun, DO's NPI number?
Mazen Beydoun, DO's National Provider Identifier (NPI) is 1972009686, issued on Apr 2, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Mazen Beydoun, DO located?
The NPPES record lists a practice address at 6644 E Baywood Ave, Mesa, AZ, 85206. Phone: (480) 321-2000. Providers update this record themselves, so call before visiting.
How can I verify Mazen Beydoun, DO's license?
NPPES lists Arizona license number 009033, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mazen Beydoun, DO prescribe under Medicare Part D?
In 2024, Mazen Beydoun, DO had 550 Medicare Part D claims for 245 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Mazen Beydoun, DO's MIPS final score?
The 2023 MIPS final score is 92.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.