MARY E. MERKEL M.D.
NPI 1649265406
Physical Medicine & Rehabilitation in Phoenix, AZ
About Mary E. Merkel M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY E. MERKEL M.D. (NPI 1649265406) is an individual physical medicine & rehabilitation provider in Phoenix, Arizona, licensed in Arizona (26413) and active in the NPI registry since September 2005. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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 (PECOS)
Mary E. Merkel M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Mary Merkel reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Phoenix, AZ 85016
- Reassigned Medicare billing, Arizona enrollment
- 302 clinicians in this Medicare group
Phoenix, AZ 85008
- Reassigned Medicare billing, Arizona enrollment
- 66 clinicians in this Medicare group
Albuquerque, NM 87111
- Reassigned Medicare billing, Arizona enrollment
- 64 clinicians in this Medicare group
Sunnyvale, CA 94087
- Reassigned Medicare billing, Arizona enrollment
- 56 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 2
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.
Other Providers at the Same Location NPPES 11
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PHOENIX, AZ 85021
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 Mary Merkel's NPI number?
The NPI number for Mary Merkel is 1649265406. It was assigned to this individual provider in the NPPES registry on September 16, 2005.
Where is Mary Merkel located?
Mary Merkel practices at 2510 W Dunlap Ave Ste 290, Phoenix, AZ 85021. The listed phone number is (602) 789-0344.
What is Mary Merkel's specialty?
The primary specialty registered for this NPI is Physical Medicine & Rehabilitation with taxonomy code 208100000X.
Is Mary Merkel enrolled in Medicare?
Yes. Mary Merkel is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Mary Merkel's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Merkel reassigns Medicare benefits to 4 organizations: Arizona Acute Medical Services 1 PC (Phoenix, AZ), Arizona Post-Acute Medical Services 1 PC (Phoenix, AZ), Nm Pacs 2 LLC (Albuquerque, NM) and Cs Pacs 3 West LLC (Sunnyvale, CA). 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 Mary Merkel's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mary Merkel accept?
Health plans from Blue Cross Blue Shield of Arizona list Mary Merkel 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 Mary Merkel was last updated on November 17, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.