CLIFFORD D STIRBA MD
NPI 1801897665
Internal Medicine - Infectious Disease in Norwich, CT
About Clifford D Stirba Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CLIFFORD D STIRBA MD (NPI 1801897665) is an individual infectious disease provider in Norwich, Connecticut, licensed in Connecticut (021694) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS and is a graduate of Perelman School Of Med At The University Of Pennsylvania (1971).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Clifford D Stirba Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Clifford Stirba reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Norwich, CT 06360
- Reassigned Medicare billing, Connecticut enrollment
- 430 clinicians in this Medicare group
Willimantic, CT 06226
- Reassigned Medicare billing, Connecticut enrollment
- 302 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 07D2014875
Clifford D Storba · Norwich, CTAreas of Expertise CMS Part B claims 2
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06360 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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 Clifford Stirba's NPI number?
The NPI number for Clifford Stirba is 1801897665. It was assigned to this individual provider in the NPPES registry on August 2, 2005.
Where is Clifford Stirba located?
Clifford Stirba practices at 7 Cuprak Rd, Norwich, CT 06360. The listed phone number is (860) 887-9865.
What is Clifford Stirba's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is Clifford Stirba enrolled in Medicare?
Yes. Clifford Stirba is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Clifford Stirba's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Clifford Stirba reassigns Medicare benefits to 2 organizations: The William W Backus Hospital (Norwich, CT) and Windham Community Memorial Hospital, Inc. (Willimantic, 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 Clifford Stirba's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Clifford Stirba accept?
Health plans from Anthem Blue Cross and Blue Shield list Clifford Stirba 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 Clifford Stirba was last updated on November 16, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Clifford D Stirba, MD · NPI 1801897665
Infectious Disease physician in Norwich, Connecticut. Individual provider, active in the CMS NPPES registry since August 2, 2005.
## Identity
- **NPI:** 1801897665 (Entity type: Individual)
- **Enumerated:** August 2, 2005
- **Primary specialty:** Internal Medicine - Infectious Disease · taxonomy 207RI0200X
- **State license:** 021694 (Connecticut)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 7 CUPRAK RD, Norwich, CT 06360-2007
- **Phone:** (860) 887-9865
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): The William W Backus Hospital (NPI 1467517235, Norwich, CT); Windham Community Memorial Hospital, Inc. (NPI 1023191467, Willimantic, CT) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Perelman School Of Med At The University Of Pennsylvania, class of 1971
## Record status
- **NPPES last updated:** November 16, 2017
- **Other identifiers:** Medicare ID-Type Unspecified 110000970 (CT); Medicare UPIN B83983
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1801897665) · Data from the CMS NPPES public registry.