GREGORY ALLAN GILSON D.O.
NPI 1922468461
Orthopaedic Surgery in Allentown, PA
About Gregory Allan Gilson D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GREGORY ALLAN GILSON D.O. (NPI 1922468461) is an individual orthopaedic surgery provider in Allentown, Pennsylvania, licensed in Pennsylvania (OS022155) and active in the NPI registry since February 2016. He is enrolled in Medicare PECOS, is affiliated with St Lukes Quakertown Hospital, and is a graduate of Philadelphia College Of Osteopathic Medicine (2016).
NPPES Registry Identity
Specialties & Licenses 2
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
Gregory Allan Gilson D.o. 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 Gregory Gilson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Allentown, PA 18104
- Reassigned Medicare billing, Pennsylvania enrollment
- Medicare enrollment name: St Lukes Physician Group Inc
- 2,851 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 14
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Lukes Quakertown Hospital
Acute Care Hospitals · Quakertown, PASt Luke's Hospital Bethlehem
Acute Care Hospitals · Bethlehem, PAGrand View Health
Acute Care Hospitals · Sellersville, PASt Luke's Miners Memorial Hospital
Acute Care Hospitals · Coaldale, PASt Luke's Hospital - Monroe Campus
Acute Care Hospitals · Stroudsburg, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 18104 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.
Other Providers at the Same Location NPPES 9
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ALLENTOWN, PA 18104
ALLENTOWN, PA 18104
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 Gregory Gilson's NPI number?
The NPI number for Gregory Gilson is 1922468461. It was assigned to this individual provider in the NPPES registry on February 25, 2016.
Where is Gregory Gilson located?
Gregory Gilson practices at 501 Cetronia Rd Ste 125, Allentown, PA 18104. The listed phone number is (484) 526-1735.
What is Gregory Gilson's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.
Is Gregory Gilson enrolled in Medicare?
Yes. Gregory Gilson 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 Gregory Gilson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Gilson reassigns Medicare benefits to St Luke's Physician Group Inc (Allentown, 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 Gregory Gilson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Gregory Gilson affiliated with any hospitals?
According to CMS data, Gregory Gilson is affiliated with St Lukes Quakertown Hospital, St Luke's Hospital Bethlehem, Grand View Health, St Luke's Miners Memorial Hospital and St Luke's Hospital - Monroe Campus.
When was this NPI record last updated?
The NPPES record for Gregory Gilson was last updated on December 14, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.