LEONARD MICHAEL HAMERA MD
NPI 1487144812
Internal Medicine - Critical Care Medicine in Phoenix, AZ
About Leonard Michael Hamera Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LEONARD MICHAEL HAMERA MD (NPI 1487144812) is an individual critical care medicine provider in Phoenix, Arizona, licensed in Arizona (68842) and active in the NPI registry since May 2018. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2017).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 2
Accepted 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
Leonard Michael Hamera Md 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.
Medicare Billing Reassignments
2Medicare enrollment records show Leonard Hamera reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Phoenix, AZ 85008
- Reassigned Medicare billing, Arizona enrollment
- 1,490 clinicians in this Medicare group
Phoenix, AZ 85020
- Reassigned Medicare billing, Arizona enrollment
- Medicare enrollment name: Arizona Critical Care Specialist, LLC
- 15 clinicians in this Medicare group
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 5
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 85008 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
PHOENIX, AZ 85008
PHOENIX, AZ 85008
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 Leonard Hamera's NPI number?
The NPI number for Leonard Hamera is 1487144812. It was assigned to this individual provider in the NPPES registry on May 10, 2018.
Where is Leonard Hamera located?
Leonard Hamera practices at 2601 E Roosevelt St, Phoenix, AZ 85008. The listed phone number is (602) 344-5011.
What is Leonard Hamera's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Leonard Hamera enrolled in Medicare?
Yes. Leonard Hamera 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 Leonard Hamera's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Leonard Hamera reassigns Medicare benefits to 2 organizations: District Medical Group, Inc (Phoenix, AZ) and Arizona Critical Care Specialists, 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 Leonard Hamera's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Leonard Hamera accept?
Health plans from Blue Cross Blue Shield of Arizona, Cigna HealthCare of Arizona, Inc, Imperial Insurance Companies, Inc. and Oscar Health Plan, Inc. list Leonard Hamera 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 Leonard Hamera was last updated on October 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 days 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.
# Leonard Michael Hamera, MD · NPI 1487144812
Critical Care Medicine physician in Phoenix, Arizona. Individual provider, active in the CMS NPPES registry since May 10, 2018.
## Identity
- **NPI:** 1487144812 (Entity type: Individual)
- **Enumerated:** May 10, 2018
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** 68842 (Arizona)
- **Sole proprietor:** No
## Practice location
- **Address:** 2601 E ROOSEVELT ST, Phoenix, AZ 85008-4973
- **Phone:** (602) 344-5011
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): District Medical Group, Inc (NPI 1043443237, Phoenix, AZ); Arizona Critical Care Specialists, LLC (NPI 1770192437, Phoenix, AZ) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** October 19, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1487144812) · Data from the CMS NPPES public registry.