MS. MARGARET ANN ERNSTER RN, MA, LPC, FNP-C
NPI 1326357336
Nurse Practitioner - Family in Glendale, AZ

Q: What is Margaret Ernster's NPI number?

The NPI number for Margaret Ernster is 1326357336. It was assigned to this individual provider in the NPPES registry on September 26, 2010.

Q: What is Margaret Ernster'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 Margaret Ernster was last updated on November 28, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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 September 26, 2010PECOS Enrolled

5141 W LAMAR RD, GLENDALE, AZ 85301(623) 344-6700 Get Directions Write a Review

NPPES record last updated: November 28, 2011. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Ms. Margaret Ann Ernster Rn, Ma, Lpc, Fnp-c NPPES

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

MS. MARGARET ANN ERNSTER RN, MA, LPC, FNP-C (NPI 1326357336) is an individual family provider in Glendale, Arizona, licensed in Arizona (RN022494) and active in the NPI registry since September 2010. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1326357336

Entity TypeIndividualFemale

Primary Taxonomy363LF0000X

Provider Legal NameMS. MARGARET ANN ERNSTERCredential: RN, MA, LPC, FNP-C

Location Address5141 W LAMAR RDGlendale, AZ 85301-3423

Mailing Address5141 W Lamar RdGlendale, AZ 85301-3423 · (623) 344-6700

Phone(623) 344-6700

Sole ProprietorNo

Enumeration DateSeptember 26, 2010

Last NPPES UpdateNovember 28, 2011

✔ NPI 1326357336 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 · RN022494

5141 W LAMAR RD, Glendale, AZ 85301

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ms. Margaret Ann Ernster Rn, Ma, Lpc, Fnp-c 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 Margaret Ernster reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

District Medical Group, Inc

9.8 mi

Pulmonary Disease

2525 E ROOSEVELT ST, MED CLINIC - PULMONARY
Phoenix, AZ 85008

Reassigned Medicare billing, Arizona enrollment
1,490 clinicians in this Medicare group

NPI 1700119815 (602) 344-1095

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 85301 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 7

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

BRITTANY MARIE DIVITO NP

Nurse Practitioner (Family)