Donald Defrang
NPI 1881215358 · Physician Assistant · Klamath Falls, OR
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Donald Defrang is a Physician Assistant provider in Klamath Falls, OR (NPI 1881215358).
Provider details
- NPI number
- 1881215358
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
6 yrs in NPPES registry
- Profile completeness33% of score
83% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 41 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 89 | 40 |
| Omeprazole | 51 | 27 |
| Atorvastatin Calcium | 50 | 25 |
| Gabapentin | 44 | 16 |
| Furosemide | 38 | 13 |
| Pantoprazole Sodium | 31 | 17 |
| Trazodone Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$14 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-05-06
- Last updated
- 2021-12-06
- Certified
- 2021-12-06
Frequently asked questions
- What is Donald Defrang's NPI number?
- Donald Defrang's National Provider Identifier (NPI) is 1881215358, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Defrang's specialty?
- Donald Defrang is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Donald Defrang located?
- Donald Defrang's practice location on file with NPPES is 2821 Daggett Ave Ste 100, Klamath Falls, OR 97601-1130.
- What is Donald Defrang's phone number?
- The practice phone number listed in the NPPES registry for Donald Defrang is (541) 274-6733.
- Does Donald Defrang accept Medicare?
- Donald Defrang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Donald Defrang's NPI active?
- Yes — Donald Defrang's NPI (1881215358) is active in the NPPES registry as of the last update on 2021-12-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.