DR. MATTHEW D FAIN DO
NPI 1720390107
Internal Medicine - Critical Care Medicine in Phoenix, AZ

Active since July 13, 2010PECOS EnrolledAccepts Medicare Assignment
500 W THOMAS RD STE 500, PHOENIX, AZ 85013(602) 406-4000(602) 406-6498 Get Directions Write a Review

NPPES record last updated: February 27, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 9, 2023, Feb 10, 2023, Jul 12, 2016 (3 updates tracked since 2016).

About Dr. Matthew D Fain Do NPPES

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

DR. MATTHEW D FAIN DO (NPI 1720390107) is an individual critical care medicine provider in Phoenix, Arizona, licensed in Arizona (009886) and active in the NPI registry since July 2010. He is enrolled in Medicare PECOS, maintains a secondary practice location in Las Vegas, and is a graduate of Arizona College Of Osteopathic Medicine Mid Western University (2010).

NPPES Registry Identity

NPI1720390107
Entity TypeIndividualMale
Primary Taxonomy207RC0200X
Provider Legal NameDR. MATTHEW D FAINCredential: DO
Location Address500 W THOMAS RD STE 500Phoenix, AZ 85013-4220
Mailing Address500 W Thomas Rd Ste 500Phoenix, AZ 85013-4220 · (602) 406-4000 · Fax (602) 406-6498
Fax(602) 406-6498
Sole ProprietorYes
Medical School CMSArizona College Of Osteopathic Medicine Mid Western UniversityGraduated 2010
Enumeration DateJuly 13, 2010
Last NPPES UpdateFebruary 27, 20263 updates tracked since enumeration
NPPES CertifiedFebruary 27, 2026
✔ NPI 1720390107 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RC0200X
License✔ Licensed in AZ · 009886
Definition
An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.
Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License DO2101 (NV)
500 W THOMAS RD STE 500, Phoenix, AZ 85013

Secondary Practice Location 1

Location 11707 W Charleston Blvd Ste 270Las Vegas, NV 89102-2326 · Phone (702) 671-5060 · Fax (702) 671-5198

Other Identifiers 1

Medicaid192884AZ

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 D Fain Do 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 ID2466693825
PECOS Enrollment IDI20221118002224
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 Reassignments

3

Medicare enrollment records show Matthew Fain reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Multi-Specialty
350 W THOMAS RD
Phoenix, AZ 85013
  • Reassigned Medicare billing, Arizona enrollment
  • 773 clinicians in this Medicare group
Critical Care Medicine
3001 SAINT ROSE PKWY
Henderson, NV 89052
  • Reassigned Medicare billing, Nevada enrollment
  • 46 clinicians in this Medicare group
Community/Behavioral Health
4000 E CHARLESTON BLVD STE 130
Las Vegas, NV 89104
  • Reassigned Medicare billing, Nevada enrollment
  • 286 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 3

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.

Irrigation and suction of lung airways to obtain cells using an endoscope 31624
This is a procedure where a thin, flexible tube called an endoscope is inserted through your mouth into the lungs. A small amount of saline is then introduced to wash the airways. The fluid, along with cells from the lung, is suctioned back for analysis.
35 services21 patients
Aspiration of subsequent secretions of lung airway using an endoscope during same hospital stay 31646
This procedure involves using a special tool called an endoscope to remove excess secretions from your lung airway. This can help improve breathing and prevent infections. It's performed during your hospital stay to ensure your comfort and safety.
31 services13 patients
Aspiration of initial secretion of lung airway using an endoscope 31645
This procedure involves using a thin, flexible tube called an endoscope to collect initial secretions from your lung airway. This helps doctors diagnose and treat respiratory conditions. It's a safe, minimally invasive procedure.
12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85013 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
$127.71 typical visit price
range $55.44 – $168.60
Typical copayment $31.92 (range $13.86 – $42.15)
Most-billed visit code 99204
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.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
1 supplier12 claims12 services$62.68 avg. paid by Medicare
Portable oxygen concentrator, rental E1392
DME-Oxygen and Supplies · category DC002N
1 supplier12 claims12 services$32.57 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

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

Internal Medicine (Pulmonary Disease)
500 W THOMAS RD STE 500
PHOENIX, AZ 85013
Internal Medicine (Critical Care Medicine)
500 W THOMAS RD STE 500
PHOENIX, AZ 85013
Thoracic Surgery (Cardiothoracic Vascular Surgery)
500 W THOMAS RD STE 500
PHOENIX, AZ 85013
Nurse Practitioner (Adult Health)
500 W THOMAS RD STE 500
PHOENIX, AZ 85013
Surgery (Surgical Critical Care)
500 W THOMAS RD STE 500
PHOENIX, AZ 85013
Nurse Practitioner (Family)
500 W THOMAS RD STE 500
PHOENIX, AZ 85013
Nurse Practitioner (Family)
500 W THOMAS RD STE 500
PHOENIX, AZ 85013
Thoracic Surgery (Cardiothoracic Vascular Surgery)
500 W THOMAS RD STE 500
PHOENIX, AZ 85013

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 Fain's NPI number?

The NPI number for Matthew Fain is 1720390107. It was assigned to this individual provider in the NPPES registry on July 13, 2010.

Where is Matthew Fain located?

Matthew Fain practices at 500 W Thomas Rd Ste 500, Phoenix, AZ 85013. The listed phone number is (602) 406-4000.

What is Matthew Fain's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Is Matthew Fain enrolled in Medicare?

Yes. Matthew Fain 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 Fain's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Fain reassigns Medicare benefits to 3 organizations: Sjhmc Physician Services (Phoenix, AZ), Sound Intensivists Of Nevada Rbessler MD PLLC (Henderson, NV) and Unlv Medicine (Las Vegas, NV). 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 Fain's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Matthew Fain accept?

Health plans from Blue Cross Blue Shield of Arizona and Cigna HealthCare of Arizona, Inc list Matthew Fain 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 Fain was last updated on February 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.