DR. MATTHEW HERRMANN M.D.
NPI 1508251091
Internal Medicine - Rheumatology in Phoenix, AZ
About Dr. Matthew Herrmann M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MATTHEW HERRMANN M.D. (NPI 1508251091) is an individual rheumatology provider in Phoenix, Arizona, licensed in Arizona (59895) and active in the NPI registry since April 2015. He is enrolled in Medicare PECOS and is a graduate of University Of Cincinnati College Of Medicine (2015).
NPPES Registry Identity
Specialties & Licenses 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
Dr. Matthew Herrmann M.d. 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
3Medicare enrollment records show Matthew Herrmann reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Phoenix, AZ 85032
- Reassigned Medicare billing, Arizona enrollment
- 44 clinicians in this Medicare group
Phoenix, AZ 85032
- Reassigned Medicare billing, Arizona enrollment
- 502 clinicians in this Medicare group
Phoenix, AZ 85032
- Reassigned Medicare billing, Arizona enrollment
- 822 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 51
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 85032 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 12
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PHOENIX, AZ 85032
PHOENIX, AZ 85032
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 Matthew Herrmann's NPI number?
The NPI number for Matthew Herrmann is 1508251091. It was assigned to this individual provider in the NPPES registry on April 1, 2015.
Where is Matthew Herrmann located?
Matthew Herrmann practices at 4550 E Bell Rd Ste 170, Phoenix, AZ 85032. The listed phone number is (480) 443-8400.
What is Matthew Herrmann's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is Matthew Herrmann enrolled in Medicare?
Yes. Matthew Herrmann 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 Matthew Herrmann's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Herrmann reassigns Medicare benefits to 3 organizations: Arizona Arthritis & Rheumatology Associates P C (Phoenix, AZ), Honorhealth Medical Group, LLC (Phoenix, AZ) and Honorhealth Ambulatory (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 Matthew Herrmann's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Matthew Herrmann accept?
Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Antidote Health Plan of Arizona, Inc., Blue Cross Blue Shield of Arizona and Cigna HealthCare of Arizona, Inc and 3 other insurers list Matthew Herrmann 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 Matthew Herrmann was last updated on June 6, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.