KIRBY S TIRK MD
NPI 1255370102
Anesthesiology in West Chester, PA
About Kirby S Tirk Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KIRBY S TIRK MD (NPI 1255370102) is an individual anesthesiology provider in West Chester, Pennsylvania, licensed in Pennsylvania (045496E) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Wisconsin School Of Medicine (1983).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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
Kirby S Tirk 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.
Medicare Billing Reassignments
7Medicare enrollment records show Kirby Tirk reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chadds Ford, PA 19317
- Reassigned Medicare billing, Pennsylvania enrollment
- 251 clinicians in this Medicare group
Darby, PA 19023
- Reassigned Medicare billing, Pennsylvania enrollment
- 400 clinicians in this Medicare group
Lancaster, PA 17601
- Reassigned Medicare billing, Pennsylvania enrollment
- 18 clinicians in this Medicare group
Allentown, PA 18104
- Reassigned Medicare billing, Pennsylvania enrollment
- Medicare enrollment name: Lehigh Anesthesia Associates PC
- 102 clinicians in this Medicare group
Pottsville, PA 17901
- Reassigned Medicare billing, Pennsylvania enrollment
- 4,429 clinicians in this Medicare group
Melville, NY 11747
- Reassigned Medicare billing, Pennsylvania enrollment
- 928 clinicians in this Medicare group
Addison, TX 75001
- Reassigned Medicare billing, Pennsylvania enrollment
- 53 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.
Areas 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.
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.
Reported Quality Measures
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.
WEST CHESTER, PA 19380
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 Kirby Tirk's NPI number?
The NPI number for Kirby Tirk is 1255370102. It was assigned to this individual provider in the NPPES registry on June 6, 2006.
Where is Kirby Tirk located?
Kirby Tirk practices at 701 E Marshall St, West Chester, PA 19380. The listed phone number is (610) 431-5472.
What is Kirby Tirk's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Kirby Tirk enrolled in Medicare?
Yes. Kirby Tirk 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 Kirby Tirk's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kirby Tirk reassigns Medicare benefits to 7 organizations: Associates In Anesthesia, Inc. (Chadds Ford, PA), Northstar Anesthesia Of Pennsylvania, LLC (Darby, PA), Apollo Medical Group Of Lancaster LLC (Lancaster, PA), Lehigh Anesthesia Associates, P.C. (Allentown, PA), Geisinger Clinic (Pottsville, PA) and 2 more organizations, listed in the Medicare section above. 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 Kirby Tirk'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 Kirby Tirk was last updated on October 30, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Kirby S Tirk, MD · NPI 1255370102
Anesthesiology physician in West Chester, Pennsylvania. Individual provider, active in the CMS NPPES registry since June 6, 2006.
## Identity
- **NPI:** 1255370102 (Entity type: Individual)
- **Enumerated:** June 6, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 045496E (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 701 E MARSHALL ST, West Chester, PA 19380-4412
- **Phone:** (610) 431-5472
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 7 organizations under Medicare reassignment (form CMS-855R): Associates In Anesthesia, Inc. (NPI 1942281191, Chadds Ford, PA); Northstar Anesthesia Of Pennsylvania, LLC (NPI 1700218989, Darby, PA); Apollo Medical Group Of Lancaster LLC (NPI 1285283549, Lancaster, PA); Lehigh Anesthesia Associates, P.C. (NPI 1508842246, Allentown, PA); Geisinger Clinic (NPI 1043261183, Pottsville, PA); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Wisconsin School Of Medicine, class of 1983
## Record status
- **NPPES last updated:** October 30, 2007
- **Other identifiers:** Medicare PIN 433206JYC (PA)
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Source: [NPI Profile](https://npiprofile.com/npi/1255370102) · Data from the CMS NPPES public registry.