ION PROHNITCHI
NPI 1407536378
Otolaryngology in Seattle, WA
About Ion Prohnitchi NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ION PROHNITCHI (NPI 1407536378) is an individual otolaryngology provider in Seattle, Washington, licensed in Washington (TR61392659) and active in the NPI registry since July 2023. He is enrolled in Medicare PECOS, is affiliated with Geisinger-community Medical Center, and is a graduate of Other (2013).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
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
Ion Prohnitchi 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
3Medicare enrollment records show Ion Prohnitchi reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Seattle, WA 98104
- Reassigned Medicare billing, Washington enrollment
- 4,364 clinicians in this Medicare group
Philipsburg, PA 16866
- Reassigned Medicare billing, Pennsylvania enrollment
- 4,429 clinicians in this Medicare group
Lock Haven, PA 17745
- Reassigned Medicare billing, Pennsylvania enrollment
- 1,405 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
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.
Geisinger-Community Medical Center
Acute Care Hospitals · Scranton, PAGeisinger Medical Center
Acute Care Hospitals · Danville, PAGeisinger Wyoming Valley Medical Center
Acute Care Hospitals · Wilkes Barre, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98195 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.
SEATTLE, WA 98195
SEATTLE, WA 98195
SEATTLE, WA 98195
SEATTLE, WA 98195
SEATTLE, WA 98195
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 Ion Prohnitchi's NPI number?
The NPI number for Ion Prohnitchi is 1407536378. It was assigned to this individual provider in the NPPES registry on July 24, 2023.
Where is Ion Prohnitchi located?
Ion Prohnitchi practices at 1959 NE Pacific St, Seattle, WA 98195. The listed phone number is (206) 221-2430.
What is Ion Prohnitchi's specialty?
The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.
Is Ion Prohnitchi enrolled in Medicare?
Yes. Ion Prohnitchi 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 Ion Prohnitchi's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ion Prohnitchi reassigns Medicare benefits to 3 organizations: The Association Of University Physicians (Seattle, WA), Geisinger Clinic (Philipsburg, PA) and Geisinger-Hm Joint Venture, LLC (Lock Haven, PA). 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 Ion Prohnitchi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ion Prohnitchi accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Buckeye Health Plan and Providence Health Plan list Ion Prohnitchi as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Ion Prohnitchi affiliated with any hospitals?
According to CMS data, Ion Prohnitchi is affiliated with Geisinger-Community Medical Center, Geisinger Medical Center and Geisinger Wyoming Valley Medical Center.
When was this NPI record last updated?
The NPPES record for Ion Prohnitchi was last updated on July 24, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Ion Prohnitchi · NPI 1407536378
Otolaryngology physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since July 24, 2023.
## Identity
- **NPI:** 1407536378 (Entity type: Individual)
- **Enumerated:** July 24, 2023
- **Primary specialty:** Otolaryngology · taxonomy 207Y00000X
- **State license:** TR61392659 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 1959 NE PACIFIC ST, Seattle, WA 98195-0001
- **Phone:** (206) 221-2430
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): The Association Of University Physicians (NPI 1023041159, Seattle, WA); Geisinger Clinic (NPI 1811948367, Philipsburg, PA); Geisinger-Hm Joint Venture, LLC (NPI 1427604222, Lock Haven, PA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2013
## Record status
- **NPPES last updated:** July 24, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1407536378) · Data from the CMS NPPES public registry.