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DR. STEFAN G KOSTADINOV MD
NPI 1871524173
Pathology - Anatomic Pathology in Providence, RI

Active since July 05, 2006PECOS EnrolledAccepts Medicare Assignment
101 DUDLEY ST, WIH PATHOLOGY DEPARTMENT, PROVIDENCE, RI 02905(014) 453-7655 Get Directions Write a Review

NPPES record last updated: September 3, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 3, 2025, Jul 3, 2023, Mar 16, 2023 and 2 more (5 updates tracked since 2021).

About Dr. Stefan G Kostadinov Md NPPES

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

DR. STEFAN G KOSTADINOV MD (NPI 1871524173) is an individual anatomic pathology provider in Providence, Rhode Island, licensed in Rhode Island (MD11517) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1991).

NPPES Registry Identity

NPI1871524173
Entity TypeIndividualMale
Primary Taxonomy207ZP0101X
Provider Legal NameDR. STEFAN G KOSTADINOVCredential: MD
Location Address101 DUDLEY ST, WIH PATHOLOGY DEPARTMENTProvidence, RI 02905-2401
Mailing Address455 Toll Gate Rd, Prc And CredentialingWarwick, RI 02886-2759 · (401) 273-0641 · Fax (401) 273-2919
Phone(014) 453-7655
Sole ProprietorNo
Medical School CMSOtherGraduated 1991
Enumeration DateJuly 5, 2006
Last NPPES UpdateSeptember 3, 20255 updates tracked since enumeration
NPPES CertifiedSeptember 3, 2025
✔ NPI 1871524173 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · Anatomic PathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZP0101X
License✔ Licensed in RI · MD11517
Definition
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.
101 DUDLEY ST, Providence, RI 02905
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include WellSense Health Plan.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Stefan G Kostadinov Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8426018771
PECOS Enrollment IDI20041012001111, I20180808000647
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 Reassignments

2

Medicare enrollment records show Stefan Kostadinov reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Affinity Physicians LLC
Same address
Anesthesiology
101 DUDLEY STREET, WIH DEPT OF ANESTHESIOLOGY
Providence, RI 02905
  • Reassigned Medicare billing, Rhode Island enrollment
  • 984 clinicians in this Medicare group
NPI 1053038471 (401) 274-1122
University Of Pittsburgh Physicians
436 mi
Urgent Care
464 ALLEGHENY BLVD, PENNWOOD CENTER
Franklin, PA 16323
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 7,114 clinicians in this Medicare group
NPI 1619381456 (814) 432-9801

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 02905 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
$134.17 typical visit price
range $58.57 – $177.03
Typical copayment $33.54 (range $14.64 – $44.25)
Most-billed visit code 99204
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 20

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

CHRISTOPHER DONALD PALMER DO
Internal Medicine
101 DUDLEY ST
PROVIDENCE, RI 02905
Providence County (401) 274-1122
BRITTANY S HAMPTON MD
Obstetrics & Gynecology (Urogynecology and Reconstructive Pelvic Surgery)
101 DUDLEY ST
PROVIDENCE, RI 02905
Providence County (401) 274-1100
HEIDI FANION LCSW
Social Worker (Clinical)
101 DUDLEY ST
PROVIDENCE, RI 02905
Providence County (401) 274-1100
MS. LINDA BEETLESTONE MS
Genetic Counselor, MS
101 DUDLEY ST
PROVIDENCE, RI 02905
Providence County (401) 453-7515
JULIE ANNA KNUTSON RN, CNM
Advanced Practice Midwife
101 DUDLEY ST
PROVIDENCE, RI 02905
Providence County (401) 274-1122
BETHANY DAWSON LICSW
Social Worker (Clinical)
101 DUDLEY ST
PROVIDENCE, RI 02905
Providence County (401) 274-1100
HEATHER A SMITH MD, MPH
Obstetrics & Gynecology (Obstetrics)
101 DUDLEY ST
PROVIDENCE, RI 02905
Providence County (401) 274-1122
NADINE C KASSIS MD
Obstetrics & Gynecology
101 DUDLEY ST
PROVIDENCE, RI 02905
Providence County (401) 274-1100

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 Stefan Kostadinov's NPI number?

The NPI number for Stefan Kostadinov is 1871524173. It was assigned to this individual provider in the NPPES registry on July 5, 2006.

Where is Stefan Kostadinov located?

Stefan Kostadinov practices at 101 Dudley St Wih Pathology Department, Providence, RI 02905. The listed phone number is (014) 453-7655.

What is Stefan Kostadinov's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology, with taxonomy code 207ZP0101X.

Is Stefan Kostadinov enrolled in Medicare?

Yes. Stefan Kostadinov is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Stefan Kostadinov's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stefan Kostadinov reassigns Medicare benefits to 2 organizations: Affinity Physicians LLC (Providence, RI) and University Of Pittsburgh Physicians (Franklin, PA). Each 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 Stefan Kostadinov's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Stefan Kostadinov accept?

Health plans from WellSense Health Plan list Stefan Kostadinov 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 Stefan Kostadinov was last updated on September 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.