Ryan Griffiths, MD
NPI 1851516447 · Nephrology Physician · Mcminnville, OR
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ryan Griffiths, MD is a Nephrology Physician provider in Mcminnville, OR (NPI 1851516447).
Provider details
- NPI number
- 1851516447
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD28045 (OR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
995 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 232 | $342 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 191 | $108 |
| Dialysis Services, 2-3 Physician Visits Per Month (20 Years Or Older)90961 | 130 | $283 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 86 | $78 |
| Home Dialysis Services Per Month (20 Years Or Older)90966 | 75 | $283 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 58 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 420 | 135 |
| Furosemide | 350 | 119 |
| Potassium Chloride | 319 | 108 |
| Calcitriol | 249 | 76 |
| Carvedilol | 240 | 70 |
| Lisinopril | 212 | 67 |
| Losartan Potassium | 178 | 67 |
| Torsemide |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$49 across 2 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
Additional practice locations (1)
- 8050 Sw Warm Springs St Ste 150Tualatin, OR 97062-7422Phone: (503) 692-7971Fax: (503) 691-6837
Registry dates
- Enumerated
- 2007-04-17
- Last updated
- 2025-09-25
- Certified
- 2025-09-25
Frequently asked questions
- What is Ryan Griffiths's NPI number?
- Ryan Griffiths's National Provider Identifier (NPI) is 1851516447, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ryan Griffiths's specialty?
- Ryan Griffiths is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Ryan Griffiths located?
- Ryan Griffiths's practice location on file with NPPES is 232 Ne Norton Lane, Mcminnville, OR 97128-8470.
- What is Ryan Griffiths's phone number?
- The practice phone number listed in the NPPES registry for Ryan Griffiths is (503) 434-1159.
- Does Ryan Griffiths accept Medicare?
- Ryan Griffiths is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ryan Griffiths's NPI active?
- Yes — Ryan Griffiths's NPI (1851516447) is active in the NPPES registry as of the last update on 2025-09-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.