Gregory Harders, MD
NPI 1891746541 · Emergency Medicine Physician · Ketchikan, AK
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Harders, MD is a Emergency Medicine Physician provider in Ketchikan, AK (NPI 1891746541).
Provider details
- NPI number
- 1891746541
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 52680 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Emergency Medical Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
287 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 132 | $175 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 106 | $118 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 27 | $8 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 22 | $69 |
Typical Medicare-allowed amounts for these services range $8–$175 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ibuprofen | 33 | 33 |
| Prednisone | 26 | 26 |
| Tramadol Hcl | 25 | 25 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 24 | 22 |
| Azithromycin | 19 | 19 |
| Cephalexin | 15 | 14 |
| Ondansetron Hcl | 14 | 14 |
| Albuterol Sulfate |
Practice location
Mailing address
Additional practice locations (1)
- 1700 Medical Center ParkwaySt. Thomas Rutherford HospitalMurfreesboro, TN 39129Phone: (615) 329-4020Fax: (615) 327-5475
Registry dates
- Enumerated
- 2006-05-15
- Last updated
- 2025-10-23
- Certified
- 2025-10-23
Frequently asked questions
- What is Gregory Harders's NPI number?
- Gregory Harders's National Provider Identifier (NPI) is 1891746541, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Harders's specialty?
- Gregory Harders is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Harders located?
- Gregory Harders's practice location on file with NPPES is 3100 Tongass Ave, Ketchikan, AK 99901-5746.
- What is Gregory Harders's phone number?
- The practice phone number listed in the NPPES registry for Gregory Harders is (907) 225-5171.
- Does Gregory Harders accept Medicare?
- Gregory Harders is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Harders's NPI active?
- Yes — Gregory Harders's NPI (1891746541) is active in the NPPES registry as of the last update on 2025-10-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.