DR. GARY EDWARD KOTERWAS DDS
NPI 1558355529
Dentist - Oral and Maxillofacial Surgery in Hagerstown, MD
About Dr. Gary Edward Koterwas Dds NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GARY EDWARD KOTERWAS DDS (NPI 1558355529) is an individual oral and maxillofacial surgery provider in Hagerstown, Maryland, licensed in Maryland (11375) and active in the NPI registry since September 2005. He has opted out of Medicare through March 21, 2028 and is a graduate of University Of Maryland School Of Medicine (2000).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Opted out of Medicare
Dr. Gary Edward Koterwas Dds has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from March 21, 2024 through March 21, 2028.
Other Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
HAGERSTOWN, MD 21742
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 Gary Koterwas's NPI number?
The NPI number for Gary Koterwas is 1558355529. It was assigned to this individual provider in the NPPES registry on September 7, 2005.
Where is Gary Koterwas located?
Gary Koterwas practices at 19414 Leitersburg Pike, Hagerstown, MD 21742. The listed phone number is (301) 791-1700.
What is Gary Koterwas's specialty?
The primary specialty registered for this NPI is Dentist, specializing in Oral and Maxillofacial Surgery, with taxonomy code 1223S0112X.
Is Gary Koterwas enrolled in Medicare?
No. Gary Koterwas has opted out of Medicare through March 21, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.
What insurance does Gary Koterwas accept?
Health plans from Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas, Florida Combined Life and Humana and 1 other insurer list Gary Koterwas 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.
When was this NPI record last updated?
The NPPES record for Gary Koterwas was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Dr. Gary Edward Koterwas, DDS · NPI 1558355529
Oral and Maxillofacial Surgery provider in Hagerstown, Maryland. Individual provider, active in the CMS NPPES registry since September 7, 2005.
## Identity
- **NPI:** 1558355529 (Entity type: Individual)
- **Enumerated:** September 7, 2005
- **Primary specialty:** Dentist - Oral and Maxillofacial Surgery · taxonomy 1223S0112X
- **State license:** 11375 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 19414 LEITERSBURG PIKE, Hagerstown, MD 21742-7601
- **Phone:** (301) 791-1700 · **Fax:** (301) 791-9257
## Medicare
- **Medicare:** Opted out of Medicare (opt-out affidavit on file, in effect through March 21, 2028); services are provided under private contract
- **Medical school:** University Of Maryland School Of Medicine, class of 2000
## Record status
- **NPPES last updated:** July 13, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1558355529) · Data from the CMS NPPES public registry.