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MARIA S THEODOROU MD
NPI 1427154590
Pediatrics in Tucson, AZ

Active since September 16, 2006PECOS Enrolled
265 W INA RD, TUCSON, AZ 85704(520) 694-8100(520) 694-8191 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Maria S Theodorou Md NPPES

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

MARIA S THEODOROU MD (NPI 1427154590) is an individual pediatrics provider in Tucson, Arizona, licensed in Arizona (21212) and active in the NPI registry since September 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1427154590
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameMARIA S THEODOROUCredential: MD
Location Address265 W INA RDTucson, AZ 85704-6204
Mailing Address655 E River RdTucson, AZ 85704-5840 · (520) 694-2700
Phone(520) 694-8100
Fax(520) 694-8191
Sole ProprietorNo
Enumeration DateSeptember 16, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1427154590 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in AZ · 21212
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
265 W INA RD, Tucson, AZ 85704
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Other Identifiers 3

Medicaid125262AZ
Medicare ID-Type Unspecified23999AZ
Medicare UPINF48874AZ

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Maria S Theodorou 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 Maria Theodorou reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Banner-University Medical Group
2.5 mi
Nutrition, Education
6261 N LA CHOLLA BLVD STE 131
Tucson, AZ 85741
  • Reassigned Medicare billing, Arizona enrollment
  • 1,514 clinicians in this Medicare group
NPI 1639842677 (520) 694-5437

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 85704 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
$85.89 typical visit price
range $55.44 – $168.60
Typical copayment $21.47 (range $13.86 – $42.15)
Most-billed visit code 99203
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.

ABDULJABBAR ALHAMMOUD MD
Orthopaedic Surgery
265 W INA RD
TUCSON, AZ 85704
Pima County (520) 694-8000
DAMARIS LOPEZ MOT, CHT
Occupational Therapist (Hand)
265 W INA RD
TUCSON, AZ 85704
Pima County (510) 462-0510
DILLON LAWLER DO
Family Medicine
265 W INA RD
TUCSON, AZ 85704
Pima County (520) 694-8888
JAMES MICHAEL DARRAGH MD
Internal Medicine
265 W INA RD
TUCSON, AZ 85704
Pima County (520) 694-8100
DR. ANNE A YOSHINO MD
Internal Medicine
265 W INA RD
TUCSON, AZ 85704
Pima County (520) 694-8100
BANNER - UNIVERSITY MEDICAL CENTER TUCSON CAMPUS LLC
General Acute Care Hospital
265 W INA RD
TUCSON, AZ 85704
Pima County (520) 694-8000
TOLGA TURKER MD
Orthopaedic Surgery (Hand Surgery)
265 W INA RD
TUCSON, AZ 85704
Pima County (520) 694-8000
CHRISTINA KIEFER PT
Physical Therapist
265 W INA RD
TUCSON, AZ 85704
Pima County (520) 694-8867

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 Maria Theodorou's NPI number?

The NPI number for Maria Theodorou is 1427154590. It was assigned to this individual provider in the NPPES registry on September 16, 2006.

Where is Maria Theodorou located?

Maria Theodorou practices at 265 W Ina Rd, Tucson, AZ 85704. The listed phone number is (520) 694-8100.

What is Maria Theodorou's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Maria Theodorou enrolled in Medicare?

Yes. Maria Theodorou is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Maria Theodorou's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Maria Theodorou reassigns Medicare benefits to Banner-University Medical Group (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 Maria Theodorou'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 Maria Theodorou was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.