1. Home
  2. Directory
  3. Arizona
  4. Tucson
  5. Internal Medicine
  6. NPI Profile

DR. JAMES PATRICK DINNING M.D.
NPI 1821074782
Internal Medicine - Gastroenterology in Tucson, AZ

Active since December 21, 2005PECOS Enrolled
7566 N LA CHOLLA BLVD, STE A, TUCSON, AZ 85741(520) 742-4139(520) 742-9618 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. James Patrick Dinning M.d. NPPES

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

DR. JAMES PATRICK DINNING M.D. (NPI 1821074782) is an individual gastroenterology provider in Tucson, Arizona, licensed in Arizona (21288) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1821074782
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. JAMES PATRICK DINNINGCredential: M.D.
Location Address7566 N LA CHOLLA BLVD, STE ATucson, AZ 85741-2307
Mailing Address7566 N La Cholla Blvd, Ste ATucson, AZ 85741-2307 · (520) 742-4139 · Fax (520) 742-9618
Phone(520) 742-4139
Fax(520) 742-9618
Sole ProprietorNo
Enumeration DateDecember 21, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1821074782 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in AZ · 21288
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
7566 N LA CHOLLA BLVD, Tucson, AZ 85741
Open in Google Maps ↗

Other Identifiers 3

Other1Z0233AZ · Healthnet
OtherAZ0846030AZ · Blue Cross Blue Shield Az
Other2152417AZ · Aetna

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. James Patrick Dinning M.d. 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 James Dinning reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

San Carlos Apache Healthcare Corporation
73 mi
Critical Access Hospital
103 MEDICINE WAY ROAD
Peridot, AZ 85542
  • Reassigned Medicare billing, Texas enrollment
  • 438 clinicians in this Medicare group
NPI 1265813075 (928) 475-1200

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 85741 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 11

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

MS. ANNE M ELLIOTT PA
Physician Assistant
7566 N LA CHOLLA BLVD, SUITE A
TUCSON, AZ 85741
Pima County (520) 742-4139
ARIZONA GASTROENTEROLOGY LTD
Internal Medicine (Gastroenterology)
7566 N LA CHOLLA BLVD, STE A
TUCSON, AZ 85741
Pima County (520) 742-4139
KYLEIGH STAPLES FNP-C
Nurse Practitioner (Family)
7566 N LA CHOLLA BLVD
TUCSON, AZ 85741
Pima County (520) 742-4139
DR. BRYAN CONTRERAS M.D.
Internal Medicine (Gastroenterology)
7566 N LA CHOLLA BLVD, STE A
TUCSON, AZ 85741
Pima County (520) 742-4139
DR. SCOTT EDWARD BLINKOFF M.D.
Internal Medicine (Gastroenterology)
7566 N LA CHOLLA BLVD, STE A
TUCSON, AZ 85741
Pima County (520) 742-4139
HI FLOW ANESTHESIA LLC
Nurse Anesthetist, Certified Registered
7566 N LA CHOLLA BLVD
TUCSON, AZ 85741
Pima County (520) 742-4139
KATHLEEN A. PIOTROWSKI APRN-CRNA
Nurse Anesthetist, Certified Registered
7566 N LA CHOLLA BLVD
TUCSON, AZ 85741
Pima County (520) 547-5847
ARIZONA DIGESTIVE INSTITUTE LLC
Clinic/Center (Endoscopy)
7566 N LA CHOLLA BLVD
TUCSON, AZ 85741
Pima County (520) 547-5847

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 Dinning's NPI number?

The NPI number for James Dinning is 1821074782. It was assigned to this individual provider in the NPPES registry on December 21, 2005.

Where is James Dinning located?

James Dinning practices at 7566 N La Cholla Blvd Ste A, Tucson, AZ 85741. The listed phone number is (520) 742-4139.

What is James Dinning's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is James Dinning enrolled in Medicare?

Yes. James Dinning is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for James Dinning's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Dinning reassigns Medicare benefits to San Carlos Apache Healthcare Corporation (Peridot, 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 James Dinning'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 James Dinning was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.