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DAWN MARIE HAYS FNP
NPI 1215828850
Nurse Practitioner in Phoenix, AZ

Active since July 11, 2025PECOS EnrolledAccepts Medicare Assignment
15640 N 28TH DR, PHOENIX, AZ 85053(602) 439-9000 Get Directions Write a Review

NPPES record last updated: September 4, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 4, 2025, Jul 11, 2025 (2 updates tracked since 2025).

About Dawn Marie Hays Fnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DAWN MARIE HAYS FNP (NPI 1215828850) is an individual nurse practitioner in Phoenix, Arizona, licensed in California (95035911) and active in the NPI registry since July 2025. She is enrolled in Medicare PECOS and is a graduate of Other (2025).

NPPES Registry Identity

NPI1215828850
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameDAWN MARIE HAYSCredential: FNP
Location Address15640 N 28TH DRPhoenix, AZ 85053-4059
Mailing Address15640 N 28th DrPhoenix, AZ 85053-4059 · (602) 439-9000 · Fax (602) 978-5233
Phone(602) 439-9000
Sole ProprietorNo
Medical School CMSOtherGraduated 2025
Enumeration DateJuly 11, 2025
Last NPPES UpdateSeptember 4, 20252 updates tracked since enumeration
NPPES CertifiedSeptember 4, 2025
✔ NPI 1215828850 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in CA · 95035911
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
15640 N 28TH DR, Phoenix, AZ 85053
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cigna HealthCare of Arizona, Inc, Oscar Health Plan, Inc..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

Dawn Marie Hays Fnp 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 ID244726230
PECOS Enrollment IDI20251229003265
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.

Medicare Billing Reassignment

Medicare enrollment records show Dawn Hays reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Arizona Endocrinology Center, Plc
Same address
Specialist
15640 N 28TH DR
Phoenix, AZ 85053
  • Reassigned Medicare billing, Arizona enrollment
  • 11 clinicians in this Medicare group
NPI 1154363547 (602) 439-9623

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 85053 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 18

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ARIZONA ENDOCRINOLOGY CENTER, PLC
Specialist
15640 N 28TH DR
PHOENIX, AZ 85053
Maricopa County (602) 439-9623
DR. STEFAN HASINSKI M.D.
Specialist
15640 N 28TH DR
PHOENIX, AZ 85053
Maricopa County (602) 439-9000
ANASTACIA LEE FELLOWS R.D.
Dietitian, Registered
15640 N 28TH DR
PHOENIX, AZ 85053
Maricopa County (602) 439-9000
HELEN Y KANG MD
Internal Medicine (Endocrinology, Diabetes & Metabolism)
15640 N 28TH DR
PHOENIX, AZ 85053
Maricopa County (602) 439-9000
CHET SINGH MONDER MD
Specialist
15640 N 28TH DR
PHOENIX, AZ 85053
Maricopa County (602) 439-9000
DR. MEERA C MENON MD
Internal Medicine
15640 N 28TH DR
PHOENIX, AZ 85053
Maricopa County (602) 439-9000
ARIZONA ENDOCRINOLOGY CENTER, PLC
Dietitian, Registered (Nutrition, Metabolic)
15640 N 28TH DR
PHOENIX, AZ 85053
Maricopa County (602) 439-9000
DR. RICHARD OWEN DOLINAR M.D.
Specialist
15640 N 28TH DR
PHOENIX, AZ 85053
Maricopa County (602) 439-9000

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 Dawn Hays's NPI number?

The NPI number for Dawn Hays is 1215828850. It was assigned to this individual provider in the NPPES registry on July 11, 2025.

Where is Dawn Hays located?

Dawn Hays practices at 15640 N 28th Dr, Phoenix, AZ 85053. The listed phone number is (602) 439-9000.

What is Dawn Hays's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Dawn Hays enrolled in Medicare?

Yes. Dawn Hays 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 Dawn Hays's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Dawn Hays reassigns Medicare benefits to Arizona Endocrinology Center, Plc (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 Dawn Hays's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Dawn Hays accept?

Health plans from Cigna HealthCare of Arizona, Inc and Oscar Health Plan, Inc. list Dawn Hays 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 Dawn Hays was last updated on September 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.