DR. MARYFRANCES KOESTER M.D.
NPI 1235303256
Emergency Medicine in Scranton, PA
About Dr. Maryfrances Koester M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARYFRANCES KOESTER M.D. (NPI 1235303256) is an individual emergency medicine provider in Scranton, Pennsylvania, licensed in Pennsylvania (MD444308) and active in the NPI registry since April 2008. She is enrolled in Medicare PECOS, is affiliated with Geisinger-community Medical Center, and is a graduate of Temple University School Of Medicine (2006).
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
Dr. Maryfrances Koester 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 Maryfrances Koester reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Scranton, PA 18510
- Reassigned Medicare billing, Pennsylvania enrollment
- 4,429 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 4
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.
Geisinger-Community Medical Center
Acute Care Hospitals · Scranton, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 18510 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.
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 Maryfrances Koester's NPI number?
The NPI number for Maryfrances Koester is 1235303256. It was assigned to this individual provider in the NPPES registry on April 22, 2008.
Where is Maryfrances Koester located?
Maryfrances Koester practices at 1800 Mulberry St, Scranton, PA 18510. The listed phone number is (570) 703-7400.
What is Maryfrances Koester's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Maryfrances Koester enrolled in Medicare?
Yes. Maryfrances Koester 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 Maryfrances Koester's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Maryfrances Koester reassigns Medicare benefits to Geisinger Clinic (Scranton, 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 Maryfrances Koester's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Maryfrances Koester affiliated with any hospitals?
According to CMS data, Maryfrances Koester is affiliated with Geisinger-Community Medical Center.
When was this NPI record last updated?
The NPPES record for Maryfrances Koester was last updated on January 7, 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. Maryfrances Koester, M.D. · NPI 1235303256
Emergency Medicine physician in Scranton, Pennsylvania. Individual provider, active in the CMS NPPES registry since April 22, 2008.
## Identity
- **NPI:** 1235303256 (Entity type: Individual)
- **Enumerated:** April 22, 2008
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** MD444308 (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 1800 MULBERRY ST, Scranton, PA 18510-2369
- **Phone:** (570) 703-7400 · **Fax:** (570) 703-7498
## 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:** Geisinger Clinic (NPI 1023067493, Scranton, PA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Temple University School Of Medicine, class of 2006
## Record status
- **NPPES last updated:** January 7, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1235303256) · Data from the CMS NPPES public registry.