James Onorato, M.D., PH.D.
NPI 1679504559 · Internal Medicine Physician · Clarkston, WA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Onorato, M.D., PH.D. is a Internal Medicine Physician provider in Clarkston, WA (NPI 1679504559).
Provider details
- NPI number
- 1679504559
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- K3367 (TX)
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 tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 54 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Furosemide | 185 | 44 |
| Losartan Potassium | 172 | 48 |
| Amlodipine Besylate | 164 | 47 |
| Spironolactone | 151 | 40 |
| Lisinopril | 146 | 34 |
| Doxazosin Mesylate | 112 | 24 |
| Chlorthalidone | 106 | 25 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-06
- Last updated
- 2024-08-12
- Certified
- 2024-08-12
Frequently asked questions
- What is James Onorato's NPI number?
- James Onorato's National Provider Identifier (NPI) is 1679504559, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Onorato's specialty?
- James Onorato is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is James Onorato located?
- James Onorato's practice location on file with NPPES is 1119 Highland Ave, Clarkston, WA 99403-2836.
- What is James Onorato's phone number?
- The practice phone number listed in the NPPES registry for James Onorato is (509) 758-5511.
- Does James Onorato accept Medicare?
- James Onorato is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Onorato's NPI active?
- Yes — James Onorato's NPI (1679504559) is active in the NPPES registry as of the last update on 2024-08-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.