DR. GRANT CHARLES GASE DO
NPI 1750918884
Psychiatry & Neurology - Psychiatry in Marion, OH
About Dr. Grant Charles Gase Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GRANT CHARLES GASE DO (NPI 1750918884) is an individual psychiatry provider in Marion, Ohio, licensed in Ohio (34.015282) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, is affiliated with Marion General Hospital, and is a graduate of Ohio University, College Of Osteopathic Medicine (2020).
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
Dr. Grant Charles Gase Do 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
2Medicare enrollment records show Grant Gase reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Marion, OH 43302
- Reassigned Medicare billing, Ohio enrollment
- 423 clinicians in this Medicare group
Columbus, OH 43214
- Reassigned Medicare billing, Ohio enrollment
- 3,314 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Marion General Hospital
Acute Care Hospitals · Marion, OHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 43302 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Grant Gase's NPI number?
The NPI number for Grant Gase is 1750918884. It was assigned to this individual provider in the NPPES registry on March 26, 2020.
Where is Grant Gase located?
Grant Gase practices at 960 S Prospect St Ste 3, Marion, OH 43302. The listed phone number is (740) 383-7910.
What is Grant Gase's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Grant Gase enrolled in Medicare?
Yes. Grant Gase 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 Grant Gase's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Grant Gase reassigns Medicare benefits to 2 organizations: Marion Area Physicians LLC (Marion, OH) and Ohiohealth Corporation (Columbus, OH). 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 Grant Gase's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Grant Gase accept?
Health plans from Anthem Blue Cross and Blue Shield, MedMutual, Oscar Health Insurance and Oscar Insurance Corporation of Ohio list Grant Gase 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 Grant Gase affiliated with any hospitals?
According to CMS data, Grant Gase is affiliated with Marion General Hospital.
When was this NPI record last updated?
The NPPES record for Grant Gase was last updated on September 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 41 days 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. Grant Charles Gase, DO · NPI 1750918884
Psychiatry physician in Marion, Ohio. Individual provider, active in the CMS NPPES registry since March 26, 2020.
## Identity
- **NPI:** 1750918884 (Entity type: Individual)
- **Enumerated:** March 26, 2020
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** 34.015282 (Ohio)
- **Sole proprietor:** No
## Practice location
- **Address:** 960 S PROSPECT ST STE 3, Marion, OH 43302-6225
- **Phone:** (740) 383-7910 · **Fax:** (740) 375-8129
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Marion Area Physicians LLC (NPI 1619230802, Marion, OH); Ohiohealth Corporation (NPI 1194979526, Columbus, OH) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Ohio University, College Of Osteopathic Medicine, class of 2020
## Record status
- **NPPES last updated:** September 28, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1750918884) · Data from the CMS NPPES public registry.