DR. GREGORY M CHRISTIANSEN D.O.
NPI 1871674952
Emergency Medicine in Sayre, PA
About Dr. Gregory M Christiansen D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GREGORY M CHRISTIANSEN D.O. (NPI 1871674952) is an individual emergency medicine provider in Sayre, Pennsylvania, licensed in Pennsylvania (OS008128L) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Robert Packer Hospital, and is a graduate of Philadelphia College Of Osteopathic Medicine (1993).
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
Dr. Gregory M Christiansen 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 Reassignments
4Medicare enrollment records show Gregory Christiansen reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Sayre, PA 18840
- Reassigned Medicare billing, Pennsylvania enrollment
- Also billed through NPI 1134734528 (Pennsylvania)
- 84 clinicians in this Medicare group
Troy, PA 16947
- Reassigned Medicare billing, Pennsylvania enrollment
- 62 clinicians in this Medicare group
Corning, NY 14830
- Reassigned Medicare billing, New York enrollment
- 72 clinicians in this Medicare group
Dunn, NC 28334
- Reassigned Medicare billing, North Carolina enrollment
- 373 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Robert Packer Hospital
Acute Care Hospitals · Sayre, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 18840 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAYRE, PA 18840
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 Christiansen's NPI number?
The NPI number for Gregory Christiansen is 1871674952. It was assigned to this individual provider in the NPPES registry on October 17, 2006.
Where is Gregory Christiansen located?
Gregory Christiansen practices at 1 Guthrie Sq, Sayre, PA 18840. The listed phone number is (570) 888-5858.
What is Gregory Christiansen's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Gregory Christiansen enrolled in Medicare?
Yes. Gregory Christiansen 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 Gregory Christiansen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Christiansen reassigns Medicare benefits to 4 organizations: Robert Packer Hospital (Sayre, PA), Troy Community Hospital Incorporated (Troy, PA), Corning Hospital (Corning, NY) and The Carolinas Emergency Group, PLLC (Dunn, NC). 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 Gregory Christiansen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Gregory Christiansen affiliated with any hospitals?
According to CMS data, Gregory Christiansen is affiliated with Robert Packer Hospital.
When was this NPI record last updated?
The NPPES record for Gregory Christiansen was last updated on March 4, 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. Gregory M Christiansen, D.O. · NPI 1871674952
Emergency Medicine physician in Sayre, Pennsylvania. Individual provider, active in the CMS NPPES registry since October 17, 2006.
## Identity
- **NPI:** 1871674952 (Entity type: Individual)
- **Enumerated:** October 17, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** OS008128L (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 GUTHRIE SQ, Sayre, PA 18840-1625
- **Phone:** (570) 888-5858
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Robert Packer Hospital (NPI 1083614382, Sayre, PA); Troy Community Hospital Incorporated (NPI 1306847926, Troy, PA); Corning Hospital (NPI 1346241973, Corning, NY); The Carolinas Emergency Group, PLLC (NPI 1477508836, Dunn, NC) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Philadelphia College Of Osteopathic Medicine, class of 1993
## Record status
- **NPPES last updated:** March 4, 2021
- **Other identifiers:** Medicaid 005837014 541581185 (VA)
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Source: [NPI Profile](https://npiprofile.com/npi/1871674952) · Data from the CMS NPPES public registry.