DR. MERRION DAWSON MD
NPI 1952042947
Family Medicine in San Tan Valley, AZ

Active since April 05, 2022PECOS EnrolledAccepts Medicare Assignment
37100 N GANTZEL RD STE 201, SAN TAN VALLEY, AZ 85140(480) 394-4469 Get Directions Write a Review

NPPES record last updated: August 7, 2025. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Aug 7, 2025, Sep 22, 2022, Apr 5, 2022 (3 updates tracked since 2022).

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

NPI1952042947
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDR. MERRION DAWSONCredential: MD
Location Address37100 N GANTZEL RD STE 201San Tan Valley, AZ 85140-7352
Mailing Address1300 N 12th St Ste 605Phoenix, AZ 85006-2850 · (602) 839-4567
Sole ProprietorNo
Medical School CMSUniversity Of Arizona College Of Medicine - PhoenixGraduated 2022
Enumeration DateApril 5, 2022
Last NPPES UpdateAugust 7, 20253 updates tracked since enumeration
NPPES CertifiedAugust 7, 2025
NPI 1952042947 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License Licensed in AZ · 76940
Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

37100 N GANTZEL RD STE 201, San Tan Valley, AZ 85140

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

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.

PECOS PAC ID5193106490
PECOS Enrollment IDI20250821001093
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

New Patient
$85.89 typical visit price
range $55.44 – $168.60
Typical copayment $21.47 (range $13.86 – $42.15)
Most-billed visit code 99203
Established Patient
$98.00 typical visit price
range $17.72 – $137.41
Typical copayment $24.50 (range $4.43 – $34.35)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Nurse Practitioner (Family)
37100 N GANTZEL RD STE 201
SAN TAN VALLEY, AZ 85140
Internal Medicine
37100 N GANTZEL RD STE 201
SAN TAN VALLEY, AZ 85140
Family Medicine
37100 N GANTZEL RD STE 201
SAN TAN VALLEY, AZ 85140
Nurse Practitioner (Family)
37100 N GANTZEL RD STE 201
SAN TAN VALLEY, AZ 85140
Family Medicine
37100 N GANTZEL RD STE 201
SAN TAN VALLEY, AZ 85140
Nurse Practitioner (Primary Care)
37100 N GANTZEL RD STE 201
SAN TAN VALLEY, AZ 85140
Registered Nurse
37100 N GANTZEL RD STE 201
SAN TAN VALLEY, AZ 85140
Family Medicine
37100 N GANTZEL RD STE 201
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.

What insurance does Merrion Dawson accept?

Health plans from Ambetter from Arizona Complete Health, Blue Cross Blue Shield of Arizona 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 with the weekly NPPES data releases published by CMS.