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DR. JAMES DAVID STEWART DO
NPI 1285895920
Internal Medicine in Peoria, AZ

Active since June 24, 2008PECOS EnrolledAccepts Medicare Assignment
3/100
CMS Quality Rating
13462 W JESSE RED DR, PEORIA, AZ 85383(602) 363-1116 Get Directions Write a Review

NPPES record last updated: April 6, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 6, 2020, Mar 18, 2016 (2 updates tracked since 2016).

About Dr. James David Stewart Do NPPES

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

DR. JAMES DAVID STEWART DO (NPI 1285895920) is an individual internal medicine provider in Peoria, Arizona, licensed in Arizona (005591) and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS and is a graduate of Other (2008).

NPPES Registry Identity

NPI1285895920
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. JAMES DAVID STEWARTCredential: DO
Location Address13462 W JESSE RED DRPeoria, AZ 85383-7904
Mailing Address13462 W Jesse Red DrPeoria, AZ 85383-7904 · (023) 631-1166
Phone(602) 363-1116
Sole ProprietorNo
Medical School CMSOtherGraduated 2008
Enumeration DateJune 24, 2008
Last NPPES UpdateApril 6, 20202 updates tracked since enumeration
NPPES CertifiedApril 6, 2020
✔ NPI 1285895920 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 · 005591
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.
13462 W JESSE RED DR, Peoria, AZ 85383
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Other Names 1

Other Name (5)David Stewart Do

Other Identifiers 1

Medicaid623895AZ

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Arizona.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. James David Stewart 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 ID9537338785
PECOS Enrollment IDI20110926000925
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

2

Medicare enrollment records show James Stewart reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

United Physicians Group LLC
20 mi
Internal Medicine
20235 N CAVE CREEK RD, STE 104, #622
Phoenix, AZ 85024
  • Reassigned Medicare billing, Arizona enrollment
  • 9 clinicians in this Medicare group
NPI 1316336845 (602) 363-1116
Aia Hospitalists LLC
38 mi
Internal Medicine
4530 E MUIRWOOD DR, SUITE 105
Phoenix, AZ 85048
  • Reassigned Medicare billing, Arizona enrollment
  • 67 clinicians in this Medicare group
NPI 1831166230 (480) 961-2307

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.

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.
628 services497 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
515 services505 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
97 services76 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85383 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

3/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored
Quality0
Improvement Activities0
Cost10

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 James Stewart's NPI number?

The NPI number for James Stewart is 1285895920. It was assigned to this individual provider in the NPPES registry on June 24, 2008. The provider is also known as David Stewart Do.

Where is James Stewart located?

James Stewart practices at 13462 W Jesse Red Dr, Peoria, AZ 85383. The listed phone number is (602) 363-1116.

What is James Stewart's specialty?

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

Is James Stewart enrolled in Medicare?

Yes. James Stewart 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 James Stewart's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Stewart reassigns Medicare benefits to 2 organizations: United Physicians Group LLC (Phoenix, AZ) and Aia Hospitalists LLC (Phoenix, AZ). 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 James Stewart's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does James Stewart accept?

Health plans from Blue Cross Blue Shield of Arizona list James Stewart 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 James Stewart was last updated on April 6, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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.