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

DR. ARIANNA GRIFFIN MD
NPI 1922567007
Pediatrics - Pediatric Critical Care Medicine in Tucson, AZ

Active since March 18, 2019PECOS Enrolled
5301 E GRANT RD, TUCSON, AZ 85712(520) 327-5461 Get Directions Write a Review

NPPES record last updated: September 15, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 15, 2025, Mar 18, 2019 (2 updates tracked since 2019).

About Dr. Arianna Griffin Md NPPES

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

DR. ARIANNA GRIFFIN MD (NPI 1922567007) is an individual pediatric critical care medicine provider in Tucson, Arizona, licensed in Arizona (77202) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1922567007
Entity TypeIndividualFemale
Primary Taxonomy2080P0203X
Provider Legal NameDR. ARIANNA GRIFFINCredential: MD
Location Address5301 E GRANT RDTucson, AZ 85712-2874
Mailing Address5301 E Grant RdTucson, AZ 85712-2874
Phone(520) 327-5461
Sole ProprietorNo
Enumeration DateMarch 18, 2019
Last NPPES UpdateSeptember 15, 20252 updates tracked since enumeration
NPPES CertifiedSeptember 15, 2025
✔ NPI 1922567007 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric Critical Care MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080P0203X
License✔ Licensed in AZ · 77202
Definition
A pediatrician expert in advanced life support for children from the term or near-term neonate to the adolescent. This competence extends to the critical care management of life-threatening organ system failure from any cause in both medical and surgical patients and to the support of vital physiological functions. This specialist may have administrative responsibilities for intensive care units and also facilitates patient care among other specialists.
Also ListedPediatricsTaxonomy 208000000X · License 77202 (AZ)
5301 E GRANT RD, Tucson, AZ 85712
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter Health, Blue Cross Blue Shield of Arizona and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Arianna Griffin Md 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 Arianna Griffin reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Tmc Medical Network
Same address
Multi-Specialty
5301 E GRANT RD
Tucson, AZ 85712
  • Reassigned Medicare billing, Arizona enrollment
  • 471 clinicians in this Medicare group
NPI 1750832283 (520) 327-5461

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

HOLLY JEANNE GRAHAM M.D.
Anesthesiology
5301 E GRANT RD, THMEP
TUCSON, AZ 85712
Pima County (520) 324-5095
SAMANTHA PENN PHARMD
Pharmacist
5301 E GRANT RD
TUCSON, AZ 85712
Pima County (520) 324-5122
DR. VICTOR HUGO RUIZ PHARMD
Student in an Organized Health Care Education/Training Program
5301 E GRANT RD
TUCSON, AZ 85712
Pima County (520) 324-2516
SARA PETTEY SANDIFER MD
Student in an Organized Health Care Education/Training Program
5301 E GRANT RD
TUCSON, AZ 85712
Pima County (520) 324-5095
JOSHUA LEE M.D.
Internal Medicine
5301 E GRANT RD
TUCSON, AZ 85712
Pima County (520) 324-5524
VANESSA LYNN PORTOR RN
Registered Nurse (Lactation Consultant)
5301 E GRANT RD
TUCSON, AZ 85712
Pima County (520) 324-5730
MRS. KRISTY BELONE FNP-C
Nurse Practitioner (Family)
5301 E GRANT RD
TUCSON, AZ 85712
Pima County (520) 324-5461
LORRAINE Y YENTZER AGACNP
Nurse Practitioner (Gerontology)
5301 E GRANT RD
TUCSON, AZ 85712
Pima County (520) 327-5461

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 Arianna Griffin's NPI number?

The NPI number for Arianna Griffin is 1922567007. It was assigned to this individual provider in the NPPES registry on March 18, 2019.

Where is Arianna Griffin located?

Arianna Griffin practices at 5301 E Grant Rd, Tucson, AZ 85712. The listed phone number is (520) 327-5461.

What is Arianna Griffin's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Critical Care Medicine, with taxonomy code 2080P0203X.

Is Arianna Griffin enrolled in Medicare?

Yes. Arianna Griffin is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Arianna Griffin's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Arianna Griffin reassigns Medicare benefits to Tmc Medical Network (Tucson, 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 Arianna Griffin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Arianna Griffin accept?

Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Blue Cross Blue Shield of Arizona and Cigna HealthCare of Arizona, Inc list Arianna Griffin 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 Arianna Griffin was last updated on September 15, 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.