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MARY ELIZABETH STEINER FNP-C, PMHNP-C
NPI 1831557958
Nurse Practitioner - Family in Gilbert, AZ

Active since February 03, 2016PECOS EnrolledAccepts Medicare Assignment
201 W GUADALUPE RD STE 302, GILBERT, AZ 85233(480) 536-9473(480) 536-9744 Get Directions Write a Review

NPPES record last updated: September 2, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Sep 2, 2025, Aug 4, 2025, Mar 17, 2018 and 2 more (5 updates tracked since 2016).

About Mary Elizabeth Steiner Fnp-c, Pmhnp-c NPPES

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

MARY ELIZABETH STEINER FNP-C, PMHNP-C (NPI 1831557958) is an individual family provider in Gilbert, Arizona, licensed in Arizona (AP8398) and active in the NPI registry since February 2016. She is enrolled in Medicare PECOS, maintains a secondary practice location in Mesa, and is a graduate of Other (2015).

NPPES Registry Identity

NPI1831557958
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMARY ELIZABETH STEINERCredential: FNP-C, PMHNP-C
Location Address201 W GUADALUPE RD STE 302Gilbert, AZ 85233-3333
Mailing Address201 W Guadalupe Rd Ste 302Gilbert, AZ 85233-3333 · (480) 748-9823
Phone(480) 536-9473
Fax(480) 536-9744
Sole ProprietorNo
Medical School CMSOtherGraduated 2015
Enumeration DateFebruary 3, 2016
Last NPPES UpdateSeptember 2, 20255 updates tracked since enumeration
NPPES CertifiedSeptember 2, 2025
✔ NPI 1831557958 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in AZ · AP8398
Also ListedNurse Practitioner · Psychiatric/Mental HealthTaxonomy 363LP0808X · License AP8398 (AZ)
201 W GUADALUPE RD STE 302, Gilbert, AZ 85233
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Secondary Practice Location 1

Location 12711 S GordonMesa, AZ 85209-7349 · Phone (480) 748-9823

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Arizona, Oscar Health Plan, Inc., UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mary Elizabeth Steiner Fnp-c, Pmhnp-c 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 ID5294031894
PECOS Enrollment IDI20160308001553
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.

Areas of Expertise CMS Part B claims 7

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.
612 services98 patients
Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301
Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.
140 services16 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.
127 services69 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.
45 services45 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
37 services29 patients
Injection of trigger points, 1-2 muscles 20552
Trigger point injection is a procedure used to treat painful areas of muscle that contain trigger points, or knots of muscle that form when muscles do not relax. 1-2 muscles are typically treated in one session. The procedure involves injecting medications into these points to alleviate pain.
29 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85233 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

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

UNCHAINED-GILBERT LLC
Psychiatry & Neurology (Psychiatry)
201 W GUADALUPE RD STE 302
GILBERT, AZ 85233
Maricopa County (480) 536-9473

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 Steiner's NPI number?

The NPI number for Mary Steiner is 1831557958. It was assigned to this individual provider in the NPPES registry on February 3, 2016.

Where is Mary Steiner located?

Mary Steiner practices at 201 W Guadalupe Rd Ste 302, Gilbert, AZ 85233. The listed phone number is (480) 536-9473.

What is Mary Steiner's specialty?

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

Is Mary Steiner enrolled in Medicare?

Yes. Mary Steiner 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.

What insurance does Mary Steiner accept?

Health plans from Blue Cross Blue Shield of Arizona, Oscar Health Plan, Inc. and UnitedHealthcare list Mary Steiner 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 Steiner was last updated on September 2, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.