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DR. KIMBERLY MASTIS M.D.
NPI 1285791780
Psychiatry & Neurology - Psychiatry in West Boylston, MA

Active since January 03, 2007PECOS Enrolled
148 WORCESTER ST, WEST BOYLSTON, MA 01583(508) 835-1735 Get Directions Write a Review

NPPES record last updated: May 2, 2012. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Kimberly Mastis M.d. NPPES

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

DR. KIMBERLY MASTIS M.D. (NPI 1285791780) is an individual psychiatry provider in West Boylston, Massachusetts, licensed in Massachusetts (236381) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS and is a graduate of Tufts University School Of Medicine (2004).

NPPES Registry Identity

NPI1285791780
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameDR. KIMBERLY MASTISCredential: M.D.
Location Address148 WORCESTER STWest Boylston, MA 01583-1751
Mailing Address148 Worcester StWest Boylston, MA 01583-1751
Phone(508) 835-1735
Sole ProprietorNo
Medical School CMSTufts University School Of MedicineGraduated 2004
Enumeration DateJanuary 3, 2007
Last NPPES UpdateMay 2, 2012
✔ NPI 1285791780 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in MA · 236381
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
148 WORCESTER ST, West Boylston, MA 01583
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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, Harvard Pilgrim Health Care.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Kimberly Mastis M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID9931248655
PECOS Enrollment IDI20091209000190
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 Kimberly Mastis reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Pediatric Behavioral Health, LLC
Same address
Marriage & Family Therapist
148 WORCESTER ST
West Boylston, MA 01583
  • Reassigned Medicare billing, Massachusetts enrollment
  • 3 clinicians in this Medicare group
NPI 1487779104 (508) 835-1735

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 01583 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
$177.36 typical visit price
range $58.86 – $177.36
Typical copayment $44.34 (range $14.71 – $44.34)
Most-billed visit code 99205
Established Patient
$73.22 typical visit price
range $19.11 – $144.84
Typical copayment $18.30 (range $4.77 – $36.21)
Most-billed visit code 99213
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.

DEBORAH SAPER LMFT
Marriage & Family Therapist
148 WORCESTER ST
WEST BOYLSTON, MA 01583
Worcester County (508) 835-1735
MS. PATRICIA ELLEN LONERGAN L.M.H.C.
Counselor (Mental Health)
148 WORCESTER ST
WEST BOYLSTON, MA 01583
Worcester County (508) 835-1735
DAWN MARIE HARTNETT LICSW
Social Worker (Clinical)
148 WORCESTER ST
WEST BOYLSTON, MA 01583
Worcester County (508) 835-1735
MRS. KELLY ANN HOBSON MA, LMHC
Counselor (Mental Health)
148 WORCESTER ST
WEST BOYLSTON, MA 01583
Worcester County (508) 612-4139
DR. TRACEY LYNN GUERTIN PH.D., H.S.P.
Psychologist
148 WORCESTER ST
WEST BOYLSTON, MA 01583
Worcester County (508) 835-1735
JOAN CURRAN LMHC, BCBA, LABA
Counselor (Mental Health)
148 WORCESTER ST
WEST BOYLSTON, MA 01583
Worcester County (508) 835-1735
MRS. JULIE ELLEN LYSIAK RN MS CS
Registered Nurse (Psychiatric/Mental Health, Child & Adolescent)
148 WORCESTER ST
WEST BOYLSTON, MA 01583
Worcester County (508) 835-1735
KRISTEN BIRCH
Counselor (Mental Health)
148 WORCESTER ST
WEST BOYLSTON, MA 01583
Worcester County (508) 835-1735

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 Kimberly Mastis's NPI number?

The NPI number for Kimberly Mastis is 1285791780. It was assigned to this individual provider in the NPPES registry on January 3, 2007.

Where is Kimberly Mastis located?

Kimberly Mastis practices at 148 Worcester St, West Boylston, MA 01583. The listed phone number is (508) 835-1735.

What is Kimberly Mastis's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Kimberly Mastis enrolled in Medicare?

Yes. Kimberly Mastis is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Kimberly Mastis's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kimberly Mastis reassigns Medicare benefits to Pediatric Behavioral Health, LLC (West Boylston, MA). 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 Kimberly Mastis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Kimberly Mastis accept?

Health plans from Anthem Blue Cross and Blue Shield and Harvard Pilgrim Health Care list Kimberly Mastis 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 Kimberly Mastis was last updated on May 2, 2012. 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.