Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

ERIN ASHLEY CHRISTMAS NP
NPI 1003493487
Nurse Practitioner - Psychiatric/Mental Health in Milwaukee, WI

Q: What is Erin Christmas's NPI number?

The NPI number for Erin Christmas is 1003493487. It was assigned to this individual provider in the NPPES registry on March 24, 2021.

Q: What is Erin Christmas's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Q: When was this NPI record last updated?

The NPPES record for Erin Christmas was last updated on October 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 days 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 March 24, 2021PECOS Enrolled

75.75/100

CMS Quality Rating

930 W HISTORIC MITCHELL ST, MILWAUKEE, WI 53204(414) 383-9526(414) 649-2711 Get Directions Write a Review

NPPES record last updated: October 22, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jul 28, 2026, Oct 1, 2024, Mar 24, 2021 (3 updates tracked since 2021).

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About Erin Ashley Christmas Np NPPES

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

ERIN ASHLEY CHRISTMAS NP (NPI 1003493487) is an individual psychiatric/mental health provider in Milwaukee, Wisconsin, licensed in Wisconsin (10823-33) and active in the NPI registry since March 2021. She is enrolled in Medicare PECOS, is affiliated with Ascension Columbia St Mary's Hospital Milwaukee, and is a graduate of University Of Wisconsin School Of Medicine (2020).

NPPES Registry Identity

NPI1003493487

Entity TypeIndividualFemale

Primary Taxonomy363LP0808X

Provider Legal NameERIN ASHLEY CHRISTMASCredential: NP

Location Address930 W HISTORIC MITCHELL STMilwaukee, WI 53204-3533

Mailing Address930 W Historic Mitchell StMilwaukee, WI 53204-3533 · (414) 383-9526 · Fax (414) 649-2711

Phone(414) 383-9526

Fax(414) 649-2711

Sole ProprietorNo

Medical School CMSUniversity Of Wisconsin School Of MedicineGraduated 2020

Enumeration DateMarch 24, 2021

Last NPPES UpdateOctober 22, 20263 updates tracked since enumeration

NPPES CertifiedOctober 22, 2026

✔ NPI 1003493487 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LP0808X

License✔ Licensed in WI · 10823-33

Also ListedNurse PractitionerTaxonomy 363L00000X · License 246679 (WI)

930 W HISTORIC MITCHELL ST, Milwaukee, WI 53204

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Erin Ashley Christmas Np is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID5799187357

PECOS Enrollment IDI20210706002299

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 Erin Christmas reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Columbia St. Mary's Hospital Milwaukee, Inc

4.0 mi

Multi-Specialty

2350 N LAKE DR
Milwaukee, WI 53211

Reassigned Medicare billing, Wisconsin enrollment
Medicare enrollment name: Columbia St Marys Hospital Milwaukee Inc
856 clinicians in this Medicare group

NPI 1023064482 (414) 585-1000

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 3

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.

32 services17 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.

26 services15 patients

Psychiatric diagnostic evaluation with medical services 90792

A psychiatric diagnostic evaluation with medical services is a comprehensive assessment. It includes a detailed examination of your mental health and physical wellbeing, as well as your personal and family history. This evaluation aids in creating an effective treatment plan.

12 services12 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ascension Columbia St Mary's Hospital Milwaukee

Acute Care Hospitals · Milwaukee, WI

3/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number520051

Location2323 N Lake DrMilwaukee, WI 53211 · Milwaukee County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53204 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

$82.92 typical visit price

range $53.90 – $163.24

Typical copayment $20.73 (range $13.47 – $40.81)

Most-billed visit code 99203

Established Patient

$95.41 typical visit price

range $17.40 – $133.76

Typical copayment $23.85 (range $4.35 – $33.44)

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.

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.

75.75/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

78.16

Promoting Interoperability

Improvement Activities

Cost

57.63

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.

MRS. CLAUDIA H WEILAND RDH

Dental Hygienist