DR. ALLISON L SHIRKER M.D.
NPI 1750350393
Obstetrics & Gynecology in Phoenixville, PA
About Dr. Allison L Shirker M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ALLISON L SHIRKER M.D. (NPI 1750350393) is an individual obstetrics & gynecology provider in Phoenixville, Pennsylvania, licensed in Pennsylvania (MD-072752-L) and active in the NPI registry since March 2006. She is enrolled in Medicare PECOS, is affiliated with Phoenixville Hospital, and is a graduate of Temple University School Of Medicine (1997).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 6
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. Allison L Shirker 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.
Medicare Billing Reassignment
Medicare enrollment records show Allison Shirker reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Phoenixville, PA 19460
- Reassigned Medicare billing, Pennsylvania enrollment
- 226 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 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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Phoenixville Hospital
Acute Care Hospitals · Phoenixville, PAPaoli Hospital
Acute Care Hospitals · Paoli, PAChester County Hospital
Acute Care Hospitals · West Chester, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19460 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
PHOENIXVILLE, PA 19460
PHOENIXVILLE, PA 19460
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 Allison Shirker's NPI number?
The NPI number for Allison Shirker is 1750350393. It was assigned to this individual provider in the NPPES registry on March 16, 2006.
Where is Allison Shirker located?
Allison Shirker practices at 799 Gay St, Phoenixville, PA 19460. The listed phone number is (610) 935-0644.
What is Allison Shirker's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Allison Shirker enrolled in Medicare?
Yes. Allison Shirker 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 organization bills Medicare for Allison Shirker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Allison Shirker reassigns Medicare benefits to Regional Womens Health Group LLC (Phoenixville, PA). The 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 Allison Shirker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Allison Shirker affiliated with any hospitals?
According to CMS data, Allison Shirker is affiliated with Phoenixville Hospital, Paoli Hospital and Chester County Hospital.
When was this NPI record last updated?
The NPPES record for Allison Shirker was last updated on July 8, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Dr. Allison L Shirker, M.D. · NPI 1750350393
Obstetrics & Gynecology physician in Phoenixville, Pennsylvania. Individual provider, active in the CMS NPPES registry since March 16, 2006.
## Identity
- **NPI:** 1750350393 (Entity type: Individual)
- **Enumerated:** March 16, 2006
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** MD-072752-L (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 799 GAY ST, Phoenixville, PA 19460-4409
- **Phone:** (610) 935-0644 · **Fax:** (610) 935-7757
## 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:** Regional Womens Health Group LLC (NPI 1750880118, Phoenixville, PA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Temple University School Of Medicine, class of 1997
## Record status
- **NPPES last updated:** July 8, 2021
- **Other identifiers:** Other 0878292000 (PA); Medicaid 0018495470005 (PA); Other 30018340 (PA); and 3 more
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Source: [NPI Profile](https://npiprofile.com/npi/1750350393) · Data from the CMS NPPES public registry.