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PIOTR KARWOWSKI D.M.D.
NPI 1124409164
Dentist in Worcester, MA

Active since June 16, 2015PECOS Enrolled
309 BELMONT ST, WORCESTER, MA 01604(847) 727-7661 Get Directions Write a Review

NPPES record last updated: July 31, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 31, 2024, Jan 28, 2016 (2 updates tracked since 2016).

About Piotr Karwowski D.m.d. NPPES

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

PIOTR KARWOWSKI D.M.D. (NPI 1124409164) is an individual dentist in Worcester, Massachusetts, licensed in Massachusetts (DN1856924) and active in the NPI registry since June 2015. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1124409164
Entity TypeIndividualMale
Primary Taxonomy122300000X
Provider Legal NamePIOTR KARWOWSKICredential: D.M.D.
Location Address309 BELMONT STWorcester, MA 01604-1059
Mailing Address309 Belmont StWorcester, MA 01604-1059 · (847) 727-7661
Phone(847) 727-7661
Sole ProprietorNo
Enumeration DateJune 16, 2015
Last NPPES UpdateJuly 31, 20242 updates tracked since enumeration
NPPES CertifiedJuly 31, 2024
✔ NPI 1124409164 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyDentistDental Providers
Taxonomy Code122300000X
License✔ Licensed in MA · DN1856924
Definition
A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License DN1856924 (MA)
309 BELMONT ST, Worcester, MA 01604
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Piotr Karwowski D.m.d. 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 Piotr Karwowski reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

The Commonwealth Of Massachusetts
Same address
Psychiatry
309 BELMONT ST
Worcester, MA 01604
  • Reassigned Medicare billing, Massachusetts enrollment
  • 59 clinicians in this Medicare group
NPI 1275680456 (508) 368-4000

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 01604 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
$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.

CRYSTALL HOLLENKAMP LICSW
Social Worker (Clinical)
309 BELMONT ST
WORCESTER, MA 01604
Worcester County (508) 368-0667
DANA EVE PALIT MSW
Social Worker (Clinical)
309 BELMONT ST
WORCESTER, MA 01604
Worcester County (508) 368-0529
DANA LYNN MCMANNUS LICSW
Social Worker (Clinical)
309 BELMONT ST
WORCESTER, MA 01604
Worcester County (508) 368-3328
MR. ADEMOLA SOLOMON OBELE PMHNP-BC
Nurse Practitioner (Psychiatric/Mental Health)
309 BELMONT ST
WORCESTER, MA 01604
Worcester County (508) 615-6001
EZINNE OBIJIAKU
Nurse Practitioner (Psychiatric/Mental Health)
309 BELMONT ST
WORCESTER, MA 01604
Worcester County (857) 312-9702
COLLEEN MARIE DOYLE LICSW
Social Worker (Clinical)
309 BELMONT ST
WORCESTER, MA 01604
Worcester County (508) 368-4000
MISS REGINA ELAINE AMORELLO LICSW
Social Worker (Clinical)
309 BELMONT ST
WORCESTER, MA 01604
Worcester County (508) 368-3795
RYAN THOMAS FLEMING LMHC
Counselor (Mental Health)
309 BELMONT ST
WORCESTER, MA 01604
Worcester County (774) 535-6597

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 Piotr Karwowski's NPI number?

The NPI number for Piotr Karwowski is 1124409164. It was assigned to this individual provider in the NPPES registry on June 16, 2015.

Where is Piotr Karwowski located?

Piotr Karwowski practices at 309 Belmont St, Worcester, MA 01604. The listed phone number is (847) 727-7661.

What is Piotr Karwowski's specialty?

The primary specialty registered for this NPI is Dentist with taxonomy code 122300000X.

Is Piotr Karwowski enrolled in Medicare?

Yes. Piotr Karwowski is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Piotr Karwowski's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Piotr Karwowski reassigns Medicare benefits to The Commonwealth Of Massachusetts (Worcester, 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 Piotr Karwowski'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 Piotr Karwowski was last updated on July 31, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.