MICHELINA DE LA MAZA GRIMES MD
NPI 1255779385
Pediatrics in Tucson, AZ
About Michelina De La Maza Grimes Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHELINA DE LA MAZA GRIMES MD (NPI 1255779385) is an individual pediatrics provider in Tucson, Arizona, licensed in Arizona (52125) and active in the NPI registry since June 2013. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Michelina De La Maza Grimes Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
5Medicare enrollment records show Michelina Grimes reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Tucson, AZ 85712
- Reassigned Medicare billing, Arizona enrollment
- 138 clinicians in this Medicare group
Tucson, AZ 85711
- Reassigned Medicare billing, Arizona enrollment
- 1,514 clinicians in this Medicare group
San Tan Valley, AZ 85140
- Reassigned Medicare billing, Arizona enrollment
- 188 clinicians in this Medicare group
Mesa, AZ 85206
- Reassigned Medicare billing, Arizona enrollment
- Medicare enrollment name: Phoenix Children's Hospital
- 1,416 clinicians in this Medicare group
Phoenix, AZ 85012
- Reassigned Medicare billing, Arizona enrollment
- 88 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 85719 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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.
TUCSON, AZ 85719
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 Michelina Grimes's NPI number?
The NPI number for Michelina Grimes is 1255779385. It was assigned to this individual provider in the NPPES registry on June 11, 2013.
Where is Michelina Grimes located?
Michelina Grimes practices at 1625 N Campbell Ave, Tucson, AZ 85719. The listed phone number is (520) 626-7053.
What is Michelina Grimes's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Michelina Grimes enrolled in Medicare?
Yes. Michelina Grimes is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Michelina Grimes's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michelina Grimes reassigns Medicare benefits to 5 organizations: Children's Clinics For Rehabilitative Services (Tucson, AZ), Banner-University Medical Group (Tucson, AZ), Banner Physician Super Specialists Arizona LLC (San Tan Valley, AZ), Phoenix Children's Medical Group (Mesa, AZ) and Banner - University Super Specialists 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 Michelina Grimes's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michelina Grimes accept?
Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Blue Cross Blue Shield of Arizona, Oscar Health Plan, Inc. and UnitedHealthcare list Michelina Grimes 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 Michelina Grimes was last updated on February 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Michelina De La Maza Grimes, MD · NPI 1255779385
Pediatrics physician in Tucson, Arizona. Individual provider, active in the CMS NPPES registry since June 11, 2013.
## Identity
- **NPI:** 1255779385 (Entity type: Individual)
- **Enumerated:** June 11, 2013
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** 52125 (Arizona)
- **Sole proprietor:** No
## Practice location
- **Address:** 1625 N CAMPBELL AVE, Tucson, AZ 85719
- **Phone:** (520) 626-7053 · **Fax:** (520) 626-6986
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Children's Clinics For Rehabilitative Services (NPI 1063454346, Tucson, AZ); Banner-University Medical Group (NPI 1932708328, Tucson, AZ); Banner Physician Super Specialists Arizona LLC (NPI 1396014403, San Tan Valley, AZ); Phoenix Children's Medical Group (NPI 1487814240, Mesa, AZ); Banner - University Super Specialists LLC (NPI 1740650555, Phoenix, AZ) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 25, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1255779385) · Data from the CMS NPPES public registry.