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JOHN EMIL ZAWIDNIAK M.D.
NPI 1932544749
Internal Medicine - Rheumatology in New Britain, CT

Active since May 07, 2013PECOS EnrolledAccepts Medicare Assignment
84.47/100
CMS Quality Rating
183 N MOUNTAIN RD STE 207, NEW BRITAIN, CT 06053(860) 524-2610(860) 524-2615 Get Directions Write a Review

NPPES record last updated: May 28, 2019. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: May 28, 2019, Jul 9, 2018, Jun 30, 2016 (3 updates tracked since 2016).

About John Emil Zawidniak M.d. NPPES

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

JOHN EMIL ZAWIDNIAK M.D. (NPI 1932544749) is an individual rheumatology provider in New Britain, Connecticut, licensed in Connecticut (57290) and active in the NPI registry since May 2013. He is enrolled in Medicare PECOS, maintains a secondary practice location in Hartford, and is a graduate of Other (2013).

NPPES Registry Identity

NPI1932544749
Entity TypeIndividualMale
Primary Taxonomy207RR0500X
Provider Legal NameJOHN EMIL ZAWIDNIAKCredential: M.D.
Location Address183 N MOUNTAIN RD STE 207New Britain, CT 06053-4325
Mailing Address183 N Mountain Rd Ste 207New Britain, CT 06053-4325 · (860) 524-2610
Phone(860) 524-2610
Fax(860) 524-2615
Sole ProprietorNo
Medical School CMSOtherGraduated 2013
Enumeration DateMay 7, 2013
Last NPPES UpdateMay 28, 20193 updates tracked since enumeration
✔ NPI 1932544749 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License✔ Licensed in CT · 57290
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
183 N MOUNTAIN RD STE 207, New Britain, CT 06053
Open in Google Maps ↗

Secondary Practice Location 1

Location 131 Seymour Street, Suite 206Hartford, CT 06106 · Phone (860) 524-2610

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, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

John Emil Zawidniak M.d. 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 ID5395064315
PECOS Enrollment IDI20180717000383
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

3

Medicare enrollment records show John Zawidniak reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Hartford Healthcare Medical Group, Inc
8.7 mi
Surgery
1290 SILAS DEANE HWY, ATTN: LINDA STRAKA
Wethersfield, CT 06109
  • Reassigned Medicare billing, Connecticut enrollment
  • 747 clinicians in this Medicare group
NPI 1043561301 (860) 972-9033
Hartford Healthcare Medical Group Specialists, PLLC
9.1 mi
Surgery
85 SEYMOUR ST STE 415
Hartford, CT 06106
  • Reassigned Medicare billing, Connecticut enrollment
  • 1,921 clinicians in this Medicare group
NPI 1023584216 (860) 246-2071
Hartford Hospital
9.2 mi
Surgery
80 SEYMOUR ST, HARTFORD HOSPITAL PROFESSIONAL SERVICES
Hartford, CT 06102
  • Reassigned Medicare billing, Connecticut enrollment
  • Also billed through NPI 1770696643 (Connecticut)
  • 1,333 clinicians in this Medicare group
NPI 1407806391 (860) 545-7602

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
160 services103 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
52 services52 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
49 services41 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06053 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
$138.84 typical visit price
range $60.82 – $183.10
Typical copayment $34.71 (range $15.20 – $45.77)
Most-billed visit code 99204
Established Patient
$106.68 typical visit price
range $19.76 – $149.26
Typical copayment $26.67 (range $4.94 – $37.31)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

84.47/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality79.28
Promoting Interoperability100
Improvement Activities40
Cost59.59

Other Providers at the Same Location NPPES

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

KELLY ELIZABETH SMYTH PA-C
Physician Assistant (Surgical)
183 N MOUNTAIN RD STE 207
NEW BRITAIN, CT 06053
Capitol Planning Region (860) 696-2040

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 John Zawidniak's NPI number?

The NPI number for John Zawidniak is 1932544749. It was assigned to this individual provider in the NPPES registry on May 7, 2013.

Where is John Zawidniak located?

John Zawidniak practices at 183 N Mountain Rd Ste 207, New Britain, CT 06053. The listed phone number is (860) 524-2610.

What is John Zawidniak's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is John Zawidniak enrolled in Medicare?

Yes. John Zawidniak 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 John Zawidniak's services?

According to the CMS Revalidation Reassignment List (October 2026 release), John Zawidniak reassigns Medicare benefits to 3 organizations: Hartford Healthcare Medical Group, Inc (Wethersfield, CT), Hartford Healthcare Medical Group Specialists, PLLC (Hartford, CT) and Hartford Hospital (Hartford, CT). 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 John Zawidniak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does John Zawidniak accept?

Health plans from Anthem Blue Cross and Blue Shield list John Zawidniak 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 John Zawidniak was last updated on May 28, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.