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

MS. TAMMY ZARUBA CPNP
NPI 1639310691
Nurse Practitioner - Pediatrics in Fitchburg, MA

Active since March 20, 2009PECOS Enrolled
326 NICHOLS RD, FITCHBURG, MA 01420(978) 878-8100(978) 878-8178 Get Directions Write a Review

NPPES record last updated: August 26, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Aug 26, 2026, Oct 3, 2024 (2 updates tracked since 2024).

About Ms. Tammy Zaruba Cpnp NPPES

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

MS. TAMMY ZARUBA CPNP (NPI 1639310691) is an individual pediatrics provider in Fitchburg, Massachusetts, licensed in Massachusetts (RN274124) and active in the NPI registry since March 2009. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1639310691
Entity TypeIndividualFemale
Primary Taxonomy363LP0200X
Provider Legal NameMS. TAMMY ZARUBACredential: CPNP
Location Address326 NICHOLS RDFitchburg, MA 01420-1914
Mailing Address10 Butterfly LnLunenburg, MA 01462-4100 · (617) 901-4404 · Fax (978) 514-6324
Phone(978) 878-8100
Fax(978) 878-8178
Sole ProprietorNo
Enumeration DateMarch 20, 2009
Last NPPES UpdateAugust 26, 20262 updates tracked since enumeration
NPPES CertifiedAugust 26, 2026
✔ NPI 1639310691 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · PediatricsPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0200X
License✔ Licensed in MA · RN274124
326 NICHOLS RD, Fitchburg, MA 01420
Open in Google Maps ↗

Other Identifiers 2

OtherMZ0751950JMA · Stae Controlled Substance
OtherRN274124MA · State License

Accepted Insurance

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

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ms. Tammy Zaruba Cpnp 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01420 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
$90.70 typical visit price
range $58.86 – $177.36
Typical copayment $22.67 (range $14.71 – $44.34)
Most-billed visit code 99203
Established Patient
$103.48 typical visit price
range $19.11 – $144.84
Typical copayment $25.87 (range $4.77 – $36.21)
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.

GEORGE CHUDOLIJ MD
Anesthesiology
326 NICHOLS RD, SUITE 16
FITCHBURG, MA 01420
Worcester County (978) 665-5800
SHAHIDA FAREED
Psychologist (Clinical)
326 NICHOLS RD
FITCHBURG, MA 01420
Worcester County (978) 878-8399
DANIEL O'BRIEN M.D.
Anesthesiology
326 NICHOLS RD, SUITE 16
FITCHBURG, MA 01420
Worcester County (978) 665-5800
ISABEL LEGARDA
Anesthesiology
326 NICHOLS RD, SUITE 16
FITCHBURG, MA 01420
Worcester County (978) 665-5800
ELIZABETH LOVECE
Counselor (Mental Health)
326 NICHOLS RD
FITCHBURG, MA 01420
Worcester County (978) 878-8100
MICHELE DENISE COLLINS RN
Registered Nurse (Community Health)
326 NICHOLS RD
FITCHBURG, MA 01420
Worcester County (978) 878-8100
DR. MORGAN RITA NELSON DO
Student in an Organized Health Care Education/Training Program
326 NICHOLS RD
FITCHBURG, MA 01420
Worcester County (978) 343-5270
AMELIA BAIRD
Student in an Organized Health Care Education/Training Program
326 NICHOLS RD
FITCHBURG, MA 01420
Worcester County (978) 878-8100

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 Tammy Zaruba's NPI number?

The NPI number for Tammy Zaruba is 1639310691. It was assigned to this individual provider in the NPPES registry on March 20, 2009.

Where is Tammy Zaruba located?

Tammy Zaruba practices at 326 Nichols Rd, Fitchburg, MA 01420. The listed phone number is (978) 878-8100.

What is Tammy Zaruba's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Pediatrics, with taxonomy code 363LP0200X.

Is Tammy Zaruba enrolled in Medicare?

Yes. Tammy Zaruba is registered in the Medicare PECOS enrollment system.

What insurance does Tammy Zaruba accept?

Health plans from Anthem Blue Cross and Blue Shield list Tammy Zaruba 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 Tammy Zaruba was last updated on August 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.