Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Michael Aaron Klein, MD

Individual provider Internal Medicine Physician · NPI 1366029092

Dr. Michael Aaron Klein, MD is an Internal Medicine in Mesa, Arizona. Qualified in 2021, 5 years ago. Practices with Banner Hospital Based Physicians Arizona LLC, a 641-clinician group and accepts Medicare assignment. Licensed in Arizona.

Years since qualifying
5
Licensed in
AZ
In the registry since
2021
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

6644 E Baywood Ave
Mesa, AZ 85206-1747
Phone: (480) 321-2000
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 73233 (AZ)

Record details

NPI number1366029092
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 27, 2021
Last updated in NPPESAugust 8, 2024
Certification dateAugust 8, 2024
Mailing address6644 E Baywood Ave, Mesa, AZ 85206-1797

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2021 (5 years in practice)
Group practice Banner Hospital Based Physicians Arizona Llc — 641 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Mesa