MS. MARY GRACE LEON FNP-BC
NPI 1295978799
Nurse Practitioner - Family in Tucson, AZ

Q: What is Mary Leon's NPI number?

The NPI number for Mary Leon is 1295978799. It was assigned to this individual provider in the NPPES registry on April 13, 2009.

Q: What is Mary Leon's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Q: When was this NPI record last updated?

The NPPES record for Mary Leon was last updated on July 20, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.

Active since April 13, 2009PECOS EnrolledAccepts Medicare Assignment

435 E GLENN ST, TUCSON, AZ 85705(520) 616-1560(520) 616-1561 Get Directions Write a Review

NPPES record last updated: July 20, 2015. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Ms. Mary Grace Leon Fnp-bc NPPES

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

MS. MARY GRACE LEON FNP-BC (NPI 1295978799) is an individual family provider in Tucson, Arizona, licensed in Arizona (AP3335) and active in the NPI registry since April 2009. She is enrolled in Medicare PECOS and is a graduate of Other (2008).

NPPES Registry Identity

NPI1295978799

Entity TypeIndividualFemale

Primary Taxonomy363LF0000X

Provider Legal NameMS. MARY GRACE LEONCredential: FNP-BC

Location Address435 E GLENN STTucson, AZ 85705-4664

Mailing AddressPo Box 188Marana, AZ 85653-0188 · (520) 682-4111 · Fax (520) 818-3630

Phone(520) 616-1560

Fax(520) 616-1561

Sole ProprietorYes

Medical School CMSOtherGraduated 2008

Enumeration DateApril 13, 2009

Last NPPES UpdateJuly 20, 2015

✔ NPI 1295978799 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LF0000X

License✔ Licensed in AZ · AP3335

435 E GLENN ST, Tucson, AZ 85705

Open in Google Maps ↗

Other Identifiers 2

Medicare PINZ152568AZ

Medicaid426515AZ

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 and accepts Medicare assignment

Ms. Mary Grace Leon Fnp-bc 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 ID8921131855

PECOS Enrollment IDI20100729000399

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

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

Spectrum Healthcare Group, Inc.

2.6 mi

Mental Health (Including Community Mental Health Center)

1200 N COUNTRY CLUB RD
Tucson, AZ 85716

Reassigned Medicare billing, Arizona enrollment
58 clinicians in this Medicare group

NPI 1831811850 (877) 634-7333

Brian S Page Do LLC

120 mi

Pain Medicine

20325 N 51ST AVE STE 160
Glendale, AZ 85308

Reassigned Medicare billing, Arizona enrollment
47 clinicians in this Medicare group

NPI 1821282666 (602) 942-0833

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 4

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

425 services113 patients

Injection, ketorolac tromethamine, per 15 mg J1885

Ketorolac tromethamine is a medication administered through injection, often used to manage moderate to severe pain. Each 15 mg dose helps to reduce hormones causing inflammation and pain in the body. It is not recommended for long-term use.

64 services12 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

34 services29 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

29 services29 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85705 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.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Pneumatic compressor, segmental home model without calibrated gradient pressure E0651

DME-Other DME · category DE000N

1 supplier11 claims11 services$862.70 avg. paid by Medicare

Segmental pneumatic appliance for use with pneumatic compressor, full leg E0667

DME-Other DME · category DE000N

1 supplier11 claims22 services$309.40 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 2

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

MARANA HEALTH CENTER, INC

Clinic/Center (Federally Qualified Health Center (FQHC))

435 E GLENN ST
TUCSON, AZ 85705

Pima County (520) 616-1560

LAURA KLEIN MILLER MD

Family Medicine

435 E GLENN ST
TUCSON, AZ 85705

Pima County (520) 696-6969

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 Mary Leon's NPI number?

The NPI number for Mary Leon is 1295978799. It was assigned to this individual provider in the NPPES registry on April 13, 2009.

Where is Mary Leon located?

Mary Leon practices at 435 E Glenn St, Tucson, AZ 85705. The listed phone number is (520) 616-1560.

What is Mary Leon's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Mary Leon enrolled in Medicare?

Yes. Mary Leon 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 Mary Leon's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Leon reassigns Medicare benefits to 2 organizations: Spectrum Healthcare Group, Inc. (Tucson, AZ) and Brian S Page Do LLC (Glendale, 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 Mary Leon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mary Leon accept?

Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Blue Cross Blue Shield of Arizona, Cigna HealthCare of Arizona, Inc and Imperial Insurance Companies, Inc. and 2 other insurers list Mary Leon 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 Mary Leon was last updated on July 20, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.