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DR. MATTHEW M. GRAHAM D.O.
NPI 1235450073
Internal Medicine in Gilbert, AZ

Active since June 16, 2010PECOS Enrolled
3285 S VAL VISTA DR, GILBERT, AZ 85297(480) 397-2800 Get Directions Write a Review

NPPES record last updated: June 22, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 26, 2019, Mar 16, 2018 (2 updates tracked since 2018).

About Dr. Matthew M. Graham D.o. NPPES

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

DR. MATTHEW M. GRAHAM D.O. (NPI 1235450073) is an individual internal medicine provider in Gilbert, Arizona, licensed in Arizona (005822) and active in the NPI registry since June 2010. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1235450073
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. MATTHEW M. GRAHAMCredential: D.O.
Location Address3285 S VAL VISTA DRGilbert, AZ 85297-7000
Mailing Address3285 S Val Vista DrGilbert, AZ 85297-7000 · (480) 397-2800
Phone(480) 397-2800
Sole ProprietorNo
Enumeration DateJune 16, 2010
Last NPPES UpdateJune 22, 20262 updates tracked since enumeration
NPPES CertifiedJune 22, 2026
✔ NPI 1235450073 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in AZ · 005822
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
3285 S VAL VISTA DR, Gilbert, AZ 85297
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Matthew M. Graham D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Matthew Graham reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Comprehensive Hospitalist Services Of Arizona LLC
11 mi
Hospitalist
1301 S CRISMON RD
Mesa, AZ 85209
  • Reassigned Medicare billing, Arizona enrollment
  • 117 clinicians in this Medicare group
NPI 1689909780 (877) 693-5700

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

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
18 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85297 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.

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.

DR. DEBBIE DENNIS DO
Psychiatry & Neurology (Psychiatry)
3285 S VAL VISTA DR
GILBERT, AZ 85297
Maricopa County (480) 397-2800
MEGAN BRIGGS
Dietitian, Registered
3285 S VAL VISTA DR
GILBERT, AZ 85297
Maricopa County (480) 397-2800
MRS. DANALEIGH ANNE SHEEHAN LMSW, APHSW-C
Social Worker
3285 S VAL VISTA DR
GILBERT, AZ 85297
Maricopa County (480) 264-3508
DR. JESSICA HARTMAN PHD
Psychologist (Clinical)
3285 S VAL VISTA DR
GILBERT, AZ 85297
Maricopa County (480) 397-2943
MARIA CRISTINA DECARVALHO LMSW
Social Worker
3285 S VAL VISTA DR
GILBERT, AZ 85297
Maricopa County (480) 397-2800
MARIE ANN NGAN PHARM.D.
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
3285 S VAL VISTA DR
GILBERT, AZ 85297
Maricopa County (602) 277-5551
MISS NICOLE ELIZABETH WOLF AU.D.
Audiologist
3285 S VAL VISTA DR, AUDIOLOGY
GILBERT, AZ 85297
Maricopa County (480) 397-2898
DR. ASHLEY ANN ZAMBETTI AUD
Audiologist
3285 S VAL VISTA DR
GILBERT, AZ 85297
Maricopa County (480) 397-2800

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 Graham's NPI number?

The NPI number for Matthew Graham is 1235450073. It was assigned to this individual provider in the NPPES registry on June 16, 2010.

Where is Matthew Graham located?

Matthew Graham practices at 3285 S Val Vista Dr, Gilbert, AZ 85297. The listed phone number is (480) 397-2800.

What is Matthew Graham's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Matthew Graham enrolled in Medicare?

Yes. Matthew Graham is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Matthew Graham's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Graham reassigns Medicare benefits to Comprehensive Hospitalist Services Of Arizona LLC (Mesa, 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 Matthew Graham's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Matthew Graham was last updated on June 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.