GREGORY P. HARDERS MD
NPI 1891746541
Emergency Medicine in Ketchikan, AK
About Gregory P. Harders Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GREGORY P. HARDERS MD (NPI 1891746541) is an individual emergency medicine provider in Ketchikan, Alaska, licensed in Alaska (214852) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Lake View Memorial Hospital, and maintains a secondary practice location in Murfreesboro.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 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
Gregory P. Harders 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 Reassignments
26Medicare enrollment records show Gregory Harders reassigns Medicare billing to 26 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Ketchikan, AK 99901
- Reassigned Medicare billing, Alaska enrollment
- 26 clinicians in this Medicare group
Ketchikan, AK 99901
- Reassigned Medicare billing, Alaska enrollment
Ketchikan, AK 99901
- Reassigned Medicare billing, Alaska enrollment
- 35 clinicians in this Medicare group
Hillsboro, ND 58045
- Reassigned Medicare billing, Minnesota enrollment
- Also billed through NPI 1790842466 (Minnesota)
- 219 clinicians in this Medicare group
Bullhead City, AZ 86442
- Reassigned Medicare billing, Arizona enrollment
- 147 clinicians in this Medicare group
Farmington, NM 87402
- Reassigned Medicare billing, New Mexico enrollment
- 5 clinicians in this Medicare group
Prescott, AZ 86301
- Reassigned Medicare billing, Arizona enrollment
- 123 clinicians in this Medicare group
Yuma, AZ 85364
- Reassigned Medicare billing, Arizona enrollment
- 79 clinicians in this Medicare group
Yuma, AZ 85365
- Reassigned Medicare billing, Arizona enrollment
- 147 clinicians in this Medicare group
Mesa, AZ 85202
- Reassigned Medicare billing, Arizona enrollment
- 211 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 4
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.
Lake View Memorial Hospital
Critical Access Hospitals · Two Harbors, MNSanford Thief River Falls Medical Center
Critical Access Hospitals · Thief River Falls, MNPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 99901 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
KETCHIKAN, AK 99901
KETCHIKAN, AK 99901
KETCHIKAN, AK 99901
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 Harders's NPI number?
The NPI number for Gregory Harders is 1891746541. It was assigned to this individual provider in the NPPES registry on May 15, 2006.
Where is Gregory Harders located?
Gregory Harders practices at 3100 Tongass Ave, Ketchikan, AK 99901. The listed phone number is (907) 225-5171.
What is Gregory Harders's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Gregory Harders enrolled in Medicare?
Yes. Gregory Harders 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 Harders's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Harders reassigns Medicare benefits to 26 organizations: Ketchikan Emergency Physicians, LLC (Ketchikan, AK), Peacehealth (Ketchikan, AK), Nes Washington, Inc. (Ketchikan, AK), Sanford Health Network North (Hillsboro, ND), Exceptional Physicians Group Bullhead City Hospital PLLC (Bullhead City, AZ) and 21 more organizations, listed in the Medicare section above. 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 Harders's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gregory Harders accept?
Health plans from Blue Cross Blue Shield of Arizona, Cigna HealthCare of Arizona, Inc, Moda Health Plan, Inc., Oscar Health and Oscar Health Plan, Inc. and 2 other insurers list Gregory Harders 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 Harders affiliated with any hospitals?
According to CMS data, Gregory Harders is affiliated with Lake View Memorial Hospital and Sanford Thief River Falls Medical Center.
When was this NPI record last updated?
The NPPES record for Gregory Harders was last updated on October 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Gregory P. Harders, MD · NPI 1891746541
Emergency Medicine physician in Ketchikan, Alaska. Individual provider, active in the CMS NPPES registry since May 15, 2006.
## Identity
- **NPI:** 1891746541 (Entity type: Individual)
- **Enumerated:** May 15, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 214852 (Alaska)
- **Sole proprietor:** No
## Practice location
- **Address:** 3100 TONGASS AVE, Ketchikan, AK 99901-5746
- **Phone:** (907) 225-5171 · **Fax:** (907) 370-2533
## 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:** 26 organizations under Medicare reassignment (form CMS-855R): Ketchikan Emergency Physicians, LLC (NPI 1801690854, Ketchikan, AK); Peacehealth (NPI 1528544822, Ketchikan, AK); Nes Washington, Inc. (NPI 1215239595, Ketchikan, AK); Sanford Health Network North (NPI 1265464259, Hillsboro, ND); Exceptional Physicians Group Bullhead City Hospital PLLC (NPI 1518732023, Bullhead City, AZ); and 21 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Tennessee, Hsc, College Of Medicine, class of 1996
## Record status
- **NPPES last updated:** October 23, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1891746541) · Data from the CMS NPPES public registry.