KRISTEN PETERS BIERWIRTH PH.D.
NPI 1245014307
Psychologist - Clinical in East Greenwich, RI

Q: What is Kristen Bierwirth's NPI number?

The NPI number for Kristen Bierwirth is 1245014307. It was assigned to this individual provider in the NPPES registry on August 21, 2023.

Q: What is Kristen Bierwirth's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Q: When was this NPI record last updated?

The NPPES record for Kristen Bierwirth was last updated on February 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months 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 August 21, 2023PECOS Enrolled

1485 S COUNTY TRL STE 107, EAST GREENWICH, RI 02818(401) 733-3349(401) 941-7847 Get Directions Write a Review

NPPES record last updated: February 6, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Feb 6, 2026, Aug 21, 2023 (2 updates tracked since 2023).

On this page

About Kristen Peters Bierwirth Ph.d. NPPES

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

KRISTEN PETERS BIERWIRTH PH.D. (NPI 1245014307) is an individual clinical provider in East Greenwich, Rhode Island, licensed in Rhode Island (PS02420) and active in the NPI registry since August 2023. She is enrolled in Medicare PECOS and is a graduate of Other (2006).

NPPES Registry Identity

NPI1245014307

Entity TypeIndividualFemale

Primary Taxonomy103TC0700X

Provider Legal NameKRISTEN PETERS BIERWIRTHCredential: PH.D.

Location Address1485 S COUNTY TRL STE 107East Greenwich, RI 02818-1747

Mailing Address35 Taggart CtEast Greenwich, RI 02818-1085 · (646) 391-4470

Phone(401) 733-3349

Fax(401) 941-7847

Sole ProprietorNo

Medical School CMSOtherGraduated 2006

Enumeration DateAugust 21, 2023

Last NPPES UpdateFebruary 6, 20262 updates tracked since enumeration

NPPES CertifiedFebruary 6, 2026

✔ NPI 1245014307 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in RI · PS02420

Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

Also ListedPsychologist · SchoolTaxonomy 103TS0200X

1485 S COUNTY TRL STE 107, East Greenwich, RI 02818

Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Kristen Peters Bierwirth Ph.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8729569827

PECOS Enrollment IDI20260226002447

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

Child And Family Psychiatry, Inc.

7.6 mi

Psychiatry

1035 POST RD
Warwick, RI 02888

Reassigned Medicare billing, Rhode Island enrollment
158 clinicians in this Medicare group

NPI 1760863229 (401) 785-0040

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 02818 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

$177.03 typical visit price

range $58.57 – $177.03

Typical copayment $44.25 (range $14.64 – $44.25)

Most-billed visit code 99205

Established Patient

$103.10 typical visit price

range $18.92 – $144.38

Typical copayment $25.77 (range $4.73 – $36.09)

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 4

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

TARA GYRA LICSW

Social Worker (Clinical)

1485 S COUNTY TRL STE 107
EAST GREENWICH, RI 02818

Kent County (401) 785-0040

DR. ALEX JOHN FURTADO PSYD

Psychologist (Clinical)

1485 S COUNTY TRL STE 107
EAST GREENWICH, RI 02818

Kent County (401) 785-0040

NATHAN CAPALBO PSY.D

Student in an Organized Health Care Education/Training Program

1485 S COUNTY TRL STE 107
EAST GREENWICH, RI 02818

Kent County (401) 785-0040

JESSICA M COSTIGAN LMHC

Counselor (Mental Health)

1485 S COUNTY TRL STE 107
EAST GREENWICH, RI 02818

Kent County (401) 258-1621

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 Kristen Bierwirth's NPI number?

The NPI number for Kristen Bierwirth is 1245014307. It was assigned to this individual provider in the NPPES registry on August 21, 2023.

Where is Kristen Bierwirth located?

Kristen Bierwirth practices at 1485 S County Trl Ste 107, East Greenwich, RI 02818. The listed phone number is (401) 733-3349.

What is Kristen Bierwirth's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Kristen Bierwirth enrolled in Medicare?

Yes. Kristen Bierwirth is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Kristen Bierwirth's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kristen Bierwirth reassigns Medicare benefits to Child And Family Psychiatry, Inc. (Warwick, RI). 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 Kristen Bierwirth'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 Kristen Bierwirth was last updated on February 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months 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.