ARNE ROBERT GRATIAS
NPI 1144803305
Emergency Medicine in Tulsa, OK
About Arne Robert Gratias NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ARNE ROBERT GRATIAS (NPI 1144803305) is an individual emergency medicine provider in Tulsa, Oklahoma, licensed in Washington (OP61672003) and active in the NPI registry since May 2021. He is enrolled in Medicare PECOS, is affiliated with Tacoma General Allenmore Hospital, and is a graduate of Other (2022).
NPPES Registry Identity
Specialties & Licenses
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
Arne Robert Gratias 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 Arne Gratias reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Muskogee, OK 74401
- Reassigned Medicare billing, Texas enrollment
- 655 clinicians in this Medicare group
Spokane Valley, WA 99037
- Reassigned Medicare billing, Washington enrollment
- 4,383 clinicians in this Medicare group
Covington, WA 98042
- Reassigned Medicare billing, Washington enrollment
- 125 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Tacoma General Allenmore Hospital
Acute Care Hospitals · Tacoma, WAMulticare Covington Medical Center
Acute Care Hospitals · Covington, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 74104 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 Arne Gratias's NPI number?
The NPI number for Arne Gratias is 1144803305. It was assigned to this individual provider in the NPPES registry on May 4, 2021.
Where is Arne Gratias located?
Arne Gratias practices at 1120 S Utica Ave, Tulsa, OK 74104. The listed phone number is (918) 579-1000.
What is Arne Gratias's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Arne Gratias enrolled in Medicare?
Yes. Arne Gratias 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 Arne Gratias's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Arne Gratias reassigns Medicare benefits to 3 organizations: Creek Nation Hospital & Clinics (Muskogee, OK), Multicare Health System (Spokane Valley, WA) and Tacoma Emergency Care Physicians, PLLC (Covington, WA). 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 Arne Gratias's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Arne Gratias affiliated with any hospitals?
According to CMS data, Arne Gratias is affiliated with Tacoma General Allenmore Hospital and Multicare Covington Medical Center.
When was this NPI record last updated?
The NPPES record for Arne Gratias was last updated on November 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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.
# Arne Robert Gratias · NPI 1144803305
Emergency Medicine physician in Tulsa, Oklahoma. Individual provider, active in the CMS NPPES registry since May 4, 2021.
## Identity
- **NPI:** 1144803305 (Entity type: Individual)
- **Enumerated:** May 4, 2021
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** OP61672003 (Washington)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1120 S UTICA AVE, Tulsa, OK 74104-4012
- **Phone:** (918) 579-1000
## 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): Creek Nation Hospital & Clinics (NPI 1922873611, Muskogee, OK); Multicare Health System (NPI 1336902345, Spokane Valley, WA); Tacoma Emergency Care Physicians, PLLC (NPI 1295075216, Covington, WA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** November 20, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1144803305) · Data from the CMS NPPES public registry.