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

Leonard Michael Hamera, MD

Individual provider Internal Medicine Physician · NPI 1487144812

Leonard Michael Hamera, MD practises Internal Medicine in Phoenix, Arizona. Qualified in 2017, 9 years ago. Practices with Arizona Critical Care Specialist, LLC, a 10-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Arizona and Nevada.

Years since qualifying
9
Licensed in
AZ, NV
In the registry since
2018
Specialties on file
3
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

2601 E Roosevelt St
Phoenix, AZ 85008-4973
Phone: (602) 344-5011
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Additional practice locations (1)

  • 1800 W. Charleston Blvd., Las Vegas, NV 89102 — (702) 383-2000

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 68842 (AZ)
Internal Medicine Physician Taxonomy 207R00000X · Licence 22463 (NV)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence 68842 (AZ)

Record details

NPI number1487144812
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 10, 2018
Last updated in NPPESFebruary 28, 2025
Certification dateFebruary 28, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Arizona Critical Care Specialist, Llc — 10 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients149
Services billed 629 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Honor Health John C. Lincoln Medical Center Hospital · Phoenix, AZ

Colleagues at Arizona Critical Care Specialist, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 10 clinicians in the practice; 8 are shown here.

Other providers in Phoenix