NATHAN HEMMER MD
NPI 1144450107
Emergency Medicine in Anchorage, AK
About Nathan Hemmer Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NATHAN HEMMER MD (NPI 1144450107) is an individual emergency medicine provider in Anchorage, Alaska, licensed in Alaska (7491) and active in the NPI registry since July 2009. He is enrolled in Medicare PECOS, is affiliated with Copley Hospital, and is a graduate of University Of Cincinnati College Of Medicine (2009).
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
Nathan Hemmer Md 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 Reassignment
Medicare enrollment records show Nathan Hemmer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Morrisville, VT 05661
- Reassigned Medicare billing, Vermont enrollment
- Also billed through NPI 1295774842 (Vermont)
- 88 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.
Copley Hospital
Critical Access Hospitals · Morrisville, VTPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 99508 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.
ANCHORAGE, AK 99508
ANCHORAGE, AK 99508
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 Nathan Hemmer's NPI number?
The NPI number for Nathan Hemmer is 1144450107. It was assigned to this individual provider in the NPPES registry on July 23, 2009.
Where is Nathan Hemmer located?
Nathan Hemmer practices at 4315 Diplomacy Dr, Anchorage, AK 99508. The listed phone number is (907) 729-1729.
What is Nathan Hemmer's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Nathan Hemmer enrolled in Medicare?
Yes. Nathan Hemmer 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 organization bills Medicare for Nathan Hemmer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nathan Hemmer reassigns Medicare benefits to Copley Hospital, Inc. (Morrisville, VT). The 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 Nathan Hemmer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Nathan Hemmer affiliated with any hospitals?
According to CMS data, Nathan Hemmer is affiliated with Copley Hospital.
When was this NPI record last updated?
The NPPES record for Nathan Hemmer was last updated on August 7, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Nathan Hemmer, MD · NPI 1144450107
Emergency Medicine physician in Anchorage, Alaska. Individual provider, active in the CMS NPPES registry since July 23, 2009.
## Identity
- **NPI:** 1144450107 (Entity type: Individual)
- **Enumerated:** July 23, 2009
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 7491 (Alaska)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 4315 DIPLOMACY DR, Anchorage, AK 99508-5926
- **Phone:** (907) 729-1729
## 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:** Copley Hospital, Inc. (NPI 1568414365, Morrisville, VT), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Cincinnati College Of Medicine, class of 2009
## Record status
- **NPPES last updated:** August 7, 2014
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Source: [NPI Profile](https://npiprofile.com/npi/1144450107) · Data from the CMS NPPES public registry.