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MAZEN BEYDOUN DO
NPI 1972009686
Internal Medicine in Mesa, AZ

Active since April 02, 2018PECOS EnrolledAccepts Medicare Assignment
92.29/100
CMS Quality Rating
6644 E BAYWOOD AVE, MESA, AZ 85206(480) 321-2000 Get Directions Write a Review

NPPES record last updated: December 2, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Mazen Beydoun Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MAZEN BEYDOUN DO (NPI 1972009686) is an individual internal medicine provider in Mesa, Arizona, licensed in Arizona (009033) and active in the NPI registry since April 2018. He is enrolled in Medicare PECOS and is a graduate of Arizona College Of Osteopathic Medicine Mid Western University (2018).

NPPES Registry Identity

NPI1972009686
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMAZEN BEYDOUNCredential: DO
Location Address6644 E BAYWOOD AVEMesa, AZ 85206-1747
Mailing Address6644 E Baywood AveMesa, AZ 85206-1747 · (480) 321-2000
Phone(480) 321-2000
Sole ProprietorYes
Medical School CMSArizona College Of Osteopathic Medicine Mid Western UniversityGraduated 2018
Enumeration DateApril 2, 2018
Last NPPES UpdateDecember 2, 2021
NPPES CertifiedDecember 2, 2021
✔ NPI 1972009686 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in AZ · 009033
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
6644 E BAYWOOD AVE, Mesa, AZ 85206
Open in Google Maps ↗

Other Identifiers 1

MedicaidA98640024AZ

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Arizona.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mazen Beydoun Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3375941982
PECOS Enrollment IDI20211013000413
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

4

Medicare enrollment records show Mazen Beydoun reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Banner Hospital Based Physicians Arizona LLC
2.7 mi
Multi-Specialty
1900 N HIGLEY RD
Gilbert, AZ 85234
  • Reassigned Medicare billing, Arizona enrollment
  • 1,081 clinicians in this Medicare group
NPI 1124374822 (480) 543-2034
Lifeline Hospitalist Associates LLC
8.8 mi
Internal Medicine
255 W BROWN RD
Mesa, AZ 85201
  • Reassigned Medicare billing, Arizona enrollment
  • 41 clinicians in this Medicare group
NPI 1265107478 (480) 985-1093
Banner Cancer Center Specialists LLC
23 mi
Oncology
2901 N CENTRAL AVE STE 160
Phoenix, AZ 85012
  • Reassigned Medicare billing, Arizona enrollment
  • 470 clinicians in this Medicare group
NPI 1518253152 (602) 747-4000
Banner - University Hospital Based Physicians LLC
23 mi
General Acute Care Hospital
2901 N CENTRAL AVE STE 160
Phoenix, AZ 85012
  • Reassigned Medicare billing, Arizona enrollment
  • 728 clinicians in this Medicare group
NPI 1750751566 (602) 747-4000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
424 services201 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
141 services77 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
127 services126 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
57 services57 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
33 services33 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
16 services16 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85206 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$127.71 typical visit price
range $55.44 – $168.60
Typical copayment $31.92 (range $13.86 – $42.15)
Most-billed visit code 99204
Established Patient
$98.00 typical visit price
range $17.72 – $137.41
Typical copayment $24.50 (range $4.43 – $34.35)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

92.29/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Promoting Interoperability98
Improvement Activities40
Cost66.94

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MRS. KARLA TRUJILLO BSN, RN
Registered Nurse (Continuing Education/Staff Development)
6644 E BAYWOOD AVE
MESA, AZ 85206
Maricopa County (480) 321-4731
ALLIED INTERNAL MEDICINE PLLC
General Acute Care Hospital
6644 E BAYWOOD AVE
MESA, AZ 85206
Maricopa County (602) 694-0548
DR. MIKULKUMAR D SHAH MD
Anesthesiology
6644 E BAYWOOD AVE
MESA, AZ 85206
Maricopa County (480) 321-2000
ANDREW MARTIN HEMMEN MD
Internal Medicine
6644 E BAYWOOD AVE
MESA, AZ 85206
Maricopa County (480) 981-4391
DR. IZABELA B POSTACCHINI MD
Hospitalist
6644 E BAYWOOD AVE, BANNER BAYWOOD MEDICAL CENTER
MESA, AZ 85206
Maricopa County (480) 321-3900
JOSHUA TODD AUSTIN CRNA
Nurse Anesthetist, Certified Registered
6644 E BAYWOOD AVE
MESA, AZ 85206
Maricopa County (480) 321-2000
EMERGENCY & ACUTE CARE MEDICAL COMPANY - AZ
Emergency Medicine
6644 E BAYWOOD AVE
MESA, AZ 85206
Maricopa County (480) 981-2000
DR. ERIC PITTMAN MD
Hospitalist
6644 E BAYWOOD AVE, BANNER BAYWOOD MEDICAL CENTER
MESA, AZ 85206
Maricopa County (480) 321-3900

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mazen Beydoun's NPI number?

The NPI number for Mazen Beydoun is 1972009686. It was assigned to this individual provider in the NPPES registry on April 2, 2018.

Where is Mazen Beydoun located?

Mazen Beydoun practices at 6644 E Baywood Ave, Mesa, AZ 85206. The listed phone number is (480) 321-2000.

What is Mazen Beydoun's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Mazen Beydoun enrolled in Medicare?

Yes. Mazen Beydoun is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Mazen Beydoun's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mazen Beydoun reassigns Medicare benefits to 4 organizations: Banner Hospital Based Physicians Arizona LLC (Gilbert, AZ), Lifeline Hospitalist Associates LLC (Mesa, AZ), Banner Cancer Center Specialists LLC (Phoenix, AZ) and Banner - University Hospital Based Physicians LLC (Phoenix, AZ). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mazen Beydoun's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mazen Beydoun accept?

Health plans from Blue Cross Blue Shield of Arizona list Mazen Beydoun as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mazen Beydoun was last updated on December 2, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.