Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Karen H Sweitzer , PA-C

Physician Assistant โ€ข Warwick, RI

Active NPI 1417421884 Individual Practitioner Female Practitioner Accepts Medicare assignment
Practice location in NPPES

455 Toll Gate Rd
Warwick, RI 028862759

Call 4017377010 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

455 Toll Gate Rd

Warwick, RI 028862759

Telephone 4017377010
Fax 4017364546
Organization at the Same NPPES Address or Phone
Kent County Memorial Hospital Facility NPI 1023017944

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: Affinity Physicians Llc.. See the list

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026

Graduation Year

2018

Medicare patients

18 people with Original Medicare in 2023

Different Original Medicare patients in 2023; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider, 2023.

Medicare-allowed amount

About $4,132 in 2023

The total amount Medicare approved for these services in 2023. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2023.

Paid by Medicare

About $3,164 in 2023

The part of the Medicare-allowed amount that Medicare itself paid in 2023, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2023.

Industry payments (Open Payments)

No Open Payments records are listed for this clinician for 2021โ€“2025.

Guide: How to read an Open Payments record

Years since graduation

8 years (graduated 2018)

CMS Doctors and Clinicians data list 2018 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.

NPI first issued

2019

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians, CMS release of October 2, 2026; Medicare.gov, โ€œDoes your provider accept Medicare as full payment?โ€

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians, CMS release of October 2, 2026.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Karen Sweitzer has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Karen Sweitzer as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Warwick and Rhode Island

Billing and prescribing volume is not a quality rating.

Medicare Part B

Comparisons use 2024 data. The latest CMS data for Karen Sweitzer are from 2023.

89 active clinicians are listed under Physician Assistant with a practice address in Warwick, RI (691 in Rhode Island).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Warwick

9% of these 89 clinicians have the CMS telehealth indicator.

79.8% of these 89 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2023), CMS Doctors and Clinicians, CMS release of October 2, 2026, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo ยท Report an error.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2023.

CMS Part B ยท Data Year 2023
Reporting Year:

CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2018โ€“2022 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ€“ by Provider and Service data, 2019โ€“2023; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
99291 Critical care, first 30-74 minutes
23 17 $1060.00 $179.65

Source: CMS Part B by Provider and Service, 2023; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2023-08-22
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

License # reported to NPPES RI PA01570

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Rhode Island State Medical Licensing Board.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - PHYSICIAN ASSISTANT

Medicare Enrollment ID

I20190425000405

Enrollment State Jurisdiction

VA

PECOS Control ID

7416299334

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026

Affinity Physicians Llc.

455 Toll Gate Rd, Warwick, RI 028862759

Phone: 4017377010

Affinity Physicians Llc.

455 Tollgate Rd, Warwick, RI 028862759

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

40 listed
Dr. Thomas Atwood , MD

Family Medicine

NPI 1164942504

Doctor of Medicine (M.D.)

Dr. Christopher Baze , DO

Emergency Medicine

NPI 1003550401

Doctor of Osteopathic Medicine (D.O.)

Dr. William Corrao , MD

Internal Medicine - Pulmonary Disease

NPI 1033132816

Doctor of Medicine (M.D.)

Dr. Holly Cromwell , MD

Emergency Medicine

NPI 1548297658

Doctor of Medicine (M.D.)

James Deady , PA

Physician Assistant - Surgical

NPI 1538595699

Physician Assistant

Dr. Nicole Durfey , MD

Emergency Medicine

NPI 1316032063

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

14 Historical Events
๐Ÿ“
Updated Practice Location August 22, 2023

Registered at 455 TOLL GATE RD, WARWICK, RI 028862759 (Tel: 4017377010)

๐Ÿ“
Updated Business Mailing Address August 22, 2023

Registered at 455 TOLL GATE RD, WARWICK, RI 028862759 (Tel: 4012730641)

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) August 22, 2023

Physician Assistant (license number reported to NPPES: RI PA01570)

๐Ÿ“
Updated Practice Location July 29, 2021

Registered at 501 SUNSET LN, CULPEPER, VA 227013917 (Tel: 5408294100)

๐Ÿ“
Updated Business Mailing Address July 29, 2021

Registered at PO BOX 9007, CHARLOTTESVILLE, VA 229069007

๐Ÿ‘ค
Provider Name / Credentials Updated March 09, 2021

Recorded as KAREN SWEITZER, PA-C

๐Ÿ“
Updated Business Mailing Address April 10, 2020

Registered at PO BOX 388, FISHERSVILLE, VA 229390388

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) April 10, 2020

Physician Assistant (license number reported to NPPES: VA 0110006555)

โœ…
NPI Profile Active January 18, 2019

NPI status registered as active in NPPES database

๐Ÿ“
Practice Location (Initial Record) January 18, 2019

Registered at 78 MEDICAL CENTER DR, FISHERSVILLE, VA 229392332 (Tel: 5403324000)

๐Ÿ“
Business Mailing Address (Initial Record) January 18, 2019

Registered at 1846 CUMBERLAND DR, ROCKINGHAM, VA 228018049 (Tel: 3027507539)

๐Ÿ‘ค
Provider Name / Credentials (Initial Record) January 18, 2019

Recorded as KAREN HAYES, PA-C

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) January 18, 2019

Physician Assistant

๐ŸŸข
Initial NPI Registration & Enumeration January 18, 2019

First registered as active Individual Practitioner in NPPES Database.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1417421884
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: January 18, 2019
Last Update: August 22, 2023
Sole Proprietor: No

Other Physician Assistants in Warwick

All Physician Assistants in Warwick

Mailing Address

455 Toll Gate Rd

Warwick, RI 028862759

Phone: 4012730641

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.