DR. GREGORY HANNABAS M.D.
NPI 1053792200
Family Medicine in Elma, WA
About Dr. Gregory Hannabas M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GREGORY HANNABAS M.D. (NPI 1053792200) is an individual family medicine provider in Elma, Washington, licensed in Washington (MD.MD.61537270) and active in the NPI registry since June 2015. He is enrolled in Medicare PECOS, is affiliated with Providence Centralia Hospital, and is a graduate of Texas Tech University Health Science Center School Of Medicine (2015).
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
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. Gregory Hannabas 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 Reassignments
3Medicare enrollment records show Gregory Hannabas reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Elma, WA 98541
- Reassigned Medicare billing, Washington enrollment
- 83 clinicians in this Medicare group
Lubbock, TX 79401
- Reassigned Medicare billing, Texas enrollment
- 1,439 clinicians in this Medicare group
New Home, TX 79381
- Reassigned Medicare billing, Texas enrollment
- 17 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.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Providence Centralia Hospital
Acute Care Hospitals · Centralia, WAProvidence St Peter Hospital
Acute Care Hospitals · Olympia, WAGrays Harbor Community Hospital
Acute Care Hospitals · Aberdeen, WACapital Medical Center
Acute Care Hospitals · Olympia, WASummit Pacific Medical Center
Critical Access Hospitals · Elma, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98541 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
ELMA, WA 98541
ELMA, WA 98541
ELMA, WA 98541
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 Hannabas's NPI number?
The NPI number for Gregory Hannabas is 1053792200. It was assigned to this individual provider in the NPPES registry on June 13, 2015.
Where is Gregory Hannabas located?
Gregory Hannabas practices at 600 E Main St, Elma, WA 98541. The listed phone number is (360) 346-2222.
What is Gregory Hannabas's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Gregory Hannabas enrolled in Medicare?
Yes. Gregory Hannabas 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 Hannabas's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Hannabas reassigns Medicare benefits to 3 organizations: Grays Harbor County Public Hospital District No 1 (Elma, WA), Concord Medical Group Of Texas PLLC (Lubbock, TX) and Lynn County Hospital District (New Home, TX). 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 Hannabas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gregory Hannabas accept?
Health plans from Blue Cross and Blue Shield of Texas, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Gregory Hannabas 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 Gregory Hannabas affiliated with any hospitals?
According to CMS data, Gregory Hannabas is affiliated with Providence Centralia Hospital, Providence St Peter Hospital, Grays Harbor Community Hospital, Capital Medical Center and Summit Pacific Medical Center.
When was this NPI record last updated?
The NPPES record for Gregory Hannabas was last updated on May 10, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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 Hannabas, M.D. · NPI 1053792200
Family Medicine physician in Elma, Washington. Individual provider, active in the CMS NPPES registry since June 13, 2015.
## Identity
- **NPI:** 1053792200 (Entity type: Individual)
- **Enumerated:** June 13, 2015
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** MD.MD.61537270 (Washington)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 600 E MAIN ST, Elma, WA 98541-9560
- **Phone:** (360) 346-2222
## 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): Grays Harbor County Public Hospital District No 1 (NPI 1740211028, Elma, WA); Concord Medical Group Of Texas PLLC (NPI 1750790762, Lubbock, TX); Lynn County Hospital District (NPI 1083745897, New Home, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Texas Tech University Health Science Center School Of Medicine, class of 2015
## Record status
- **NPPES last updated:** May 10, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1053792200) · Data from the CMS NPPES public registry.