STEPHANIE ANN WESTERFIELD PMHNP-BC
NPI 1437453297
Nurse Practitioner - Psychiatric/Mental Health in Van Nuys, CA

Active since January 07, 2011PECOS Enrolled
16360 ROSCOE BLVD, 2ND FLOOR, VAN NUYS, CA 91406(818) 901-4830 Get Directions Write a Review

NPPES record last updated: November 13, 2015. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Stephanie Ann Westerfield Pmhnp-bc NPPES

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

STEPHANIE ANN WESTERFIELD PMHNP-BC (NPI 1437453297) is an individual psychiatric/mental health provider in Van Nuys, California, licensed in California (NP23786) and active in the NPI registry since January 2011. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1437453297
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameSTEPHANIE ANN WESTERFIELDCredential: PMHNP-BC
Location Address16360 ROSCOE BLVD, 2ND FLOORVan Nuys, CA 91406-1219
Mailing Address16360 Roscoe Blvd, 2nd FloorVan Nuys, CA 91406-1219 · (818) 901-4830
Sole ProprietorNo
Enumeration DateJanuary 7, 2011
Last NPPES UpdateNovember 13, 2015
✔ NPI 1437453297 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in CA · NP23786
16360 ROSCOE BLVD, Van Nuys, CA 91406

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Stephanie Ann Westerfield Pmhnp-bc 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 Stephanie Westerfield reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Internal Medicine
23845 MCBEAN PKWY
Valencia, CA 91355
  • Reassigned Medicare billing, California enrollment
  • 29 clinicians in this Medicare group

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 2

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
44 services22 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
26 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91406 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
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
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.

Rehabilitation Practitioner
16360 ROSCOE BLVD, 2ND FLOOR
VAN NUYS, CA 91406
Marriage & Family Therapist
16360 ROSCOE BLVD
VAN NUYS, CA 91406
Licensed Vocational Nurse
16360 ROSCOE BLVD
VAN NUYS, CA 91406
Licensed Vocational Nurse
16360 ROSCOE BLVD, 2ND FLOOR
VAN NUYS, CA 91406
Licensed Vocational Nurse
16360 ROSCOE BLVD
VAN NUYS, CA 91406
Social Worker (Clinical)
16360 ROSCOE BLVD
VAN NUYS, CA 91406
Student in an Organized Health Care Education/Training Program
16360 ROSCOE BLVD
VAN NUYS, CA 91406
Licensed Vocational Nurse
16360 ROSCOE BLVD
VAN NUYS, CA 91406

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 Stephanie Westerfield's NPI number?

The NPI number for Stephanie Westerfield is 1437453297. It was assigned to this individual provider in the NPPES registry on January 7, 2011.

Where is Stephanie Westerfield located?

Stephanie Westerfield practices at 16360 Roscoe Blvd 2nd Floor, Van Nuys, CA 91406. The listed phone number is (818) 901-4830.

What is Stephanie Westerfield's specialty?

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

Is Stephanie Westerfield enrolled in Medicare?

Yes. Stephanie Westerfield is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Stephanie Westerfield's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stephanie Westerfield reassigns Medicare benefits to Scct Medical Group, PC (Valencia, CA). 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 Stephanie Westerfield'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 Stephanie Westerfield was last updated on November 13, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.