William Peffley, DO
NPI 1275548562 · Family Medicine Physician · Dallas, OR
William Peffley, DO is a Family Medicine Physician provider in Dallas, OR (NPI 1275548562).
Provider details
- NPI number
- 1275548562
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
- License
- DO27471 (OR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% 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 · 64 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 194 | 54 |
| Levothyroxine Sodium | 124 | 30 |
| Losartan Potassium | 104 | 28 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 99 | 18 |
| Lisinopril | 86 | 22 |
| Amlodipine Besylate | 81 | 23 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$459 across 22 records (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
- 2006-07-29
- Last updated
- 2012-04-05
Frequently asked questions
- What is William Peffley's NPI number?
- William Peffley's National Provider Identifier (NPI) is 1275548562, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Peffley's specialty?
- William Peffley is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Peffley located?
- William Peffley's practice location on file with NPPES is 607 Se Jefferson St, Dallas, OR 97338-2025.
- What is William Peffley's phone number?
- The practice phone number listed in the NPPES registry for William Peffley is (503) 623-1200.
- Is William Peffley's NPI active?
- Yes — William Peffley's NPI (1275548562) is active in the NPPES registry as of the last update on 2012-04-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.