DR. AARON SETH KARMES D.O.
NPI 1346503711
Family Medicine in Bangor, ME
About Dr. Aaron Seth Karmes D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. AARON SETH KARMES D.O. (NPI 1346503711) is an individual family medicine provider in Bangor, Maine, licensed in Maine (DO2876) and active in the NPI registry since June 2012. He is enrolled in Medicare PECOS, is affiliated with St Joseph Hospital, and is a graduate of University Of New England, College Of Osteo Medicine (2012).
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
Dr. Aaron Seth Karmes D.o. 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 Aaron Karmes reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Bangor, ME 04401
- Reassigned Medicare billing, Maine enrollment
- 54 clinicians in this Medicare group
Bangor, ME 04401
- Reassigned Medicare billing, Maine enrollment
- 259 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Joseph Hospital
Acute Care Hospitals · Bangor, MEPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 04401 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 2
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.
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 Aaron Karmes's NPI number?
The NPI number for Aaron Karmes is 1346503711. It was assigned to this individual provider in the NPPES registry on June 20, 2012.
Where is Aaron Karmes located?
Aaron Karmes practices at 900 Broadway, Bangor, ME 04401. The listed phone number is (207) 907-3777.
What is Aaron Karmes's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Aaron Karmes enrolled in Medicare?
Yes. Aaron Karmes 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 Aaron Karmes's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Aaron Karmes reassigns Medicare benefits to 2 organizations: Nes Medical Services Of New England Inc (Bangor, ME) and St. Joseph Hospital (Bangor, ME). 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 Aaron Karmes's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Aaron Karmes affiliated with any hospitals?
According to CMS data, Aaron Karmes is affiliated with St Joseph Hospital.
When was this NPI record last updated?
The NPPES record for Aaron Karmes was last updated on February 3, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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. Aaron Seth Karmes, D.O. · NPI 1346503711
Family Medicine physician in Bangor, Maine. Individual provider, active in the CMS NPPES registry since June 20, 2012.
## Identity
- **NPI:** 1346503711 (Entity type: Individual)
- **Enumerated:** June 20, 2012
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** DO2876 (Maine)
- **Sole proprietor:** No
## Practice location
- **Address:** 900 BROADWAY, Bangor, ME 04401-1900
- **Phone:** (207) 907-3777 · **Fax:** (207) 907-3778
## 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): Nes Medical Services Of New England Inc (NPI 1396401907, Bangor, ME); St. Joseph Hospital (NPI 1154321545, Bangor, ME) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of New England, College Of Osteo Medicine, class of 2012
## Record status
- **NPPES last updated:** February 3, 2022
---
Source: [NPI Profile](https://npiprofile.com/npi/1346503711) · Data from the CMS NPPES public registry.