DR. MERRION DAWSON MD
NPI 1952042947
Family Medicine in San Tan Valley, AZ
About Dr. Merrion Dawson Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MERRION DAWSON MD (NPI 1952042947) is an individual family medicine provider in San Tan Valley, Arizona, licensed in Arizona (76940) and active in the NPI registry since April 2022. She is enrolled in Medicare PECOS and is a graduate of University Of Arizona College Of Medicine - Phoenix (2022).
NPPES Registry Identity
Specialties & Licenses
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. Merrion Dawson 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 Reassignment
Medicare enrollment records show Merrion Dawson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Phoenix, AZ 85012
- Reassigned Medicare billing, Arizona enrollment
- 271 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 85140 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.
SAN TAN VALLEY, AZ 85140
SAN TAN VALLEY, AZ 85140
QUEEN CREEK, AZ 85140
SAN TAN VALLEY, AZ 85140
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 Merrion Dawson's NPI number?
The NPI number for Merrion Dawson is 1952042947. It was assigned to this individual provider in the NPPES registry on April 5, 2022.
Where is Merrion Dawson located?
Merrion Dawson practices at 37100 N Gantzel Rd Ste 201, San Tan Valley, AZ 85140. The listed phone number is (480) 394-4469.
What is Merrion Dawson's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Merrion Dawson enrolled in Medicare?
Yes. Merrion Dawson 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 organization bills Medicare for Merrion Dawson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Merrion Dawson reassigns Medicare benefits to Banner Primary Care Physicians Arizona LLC (Phoenix, AZ). The 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 Merrion Dawson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Merrion Dawson accept?
Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Blue Cross Blue Shield of Arizona, Oscar Health Plan, Inc. and UnitedHealthcare list Merrion Dawson 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 Merrion Dawson was last updated on August 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months 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.
# Dr. Merrion Dawson, MD · NPI 1952042947
Family Medicine physician in San Tan Valley, Arizona. Individual provider, active in the CMS NPPES registry since April 5, 2022.
## Identity
- **NPI:** 1952042947 (Entity type: Individual)
- **Enumerated:** April 5, 2022
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 76940 (Arizona)
- **Sole proprietor:** No
## Practice location
- **Address:** 37100 N GANTZEL RD STE 201, San Tan Valley, AZ 85140-7352
- **Phone:** (480) 394-4469
## 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:** Banner Primary Care Physicians Arizona LLC (NPI 1417238908, Phoenix, AZ), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Arizona College Of Medicine - Phoenix, class of 2022
## Record status
- **NPPES last updated:** August 7, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1952042947) · Data from the CMS NPPES public registry.