Dr. James J. Onorato, MD, PhD
- Medicare services, 2021
- 148
- Part D claims, 2024
- 2,779
- Hospital affiliations
- 5
- Industry payments
- $57
- Medical group
- 1
- Practice address
- 1221 Highland Avenue, Clarkston, WA 99403
- Practice phone
- Call (509) 758-5511
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Onorato's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. James J. Onorato is an internist in Clarkston, Washington
Dr. Onorato practices at TriState Health in Clarkston, Washington, part of Tri-State Memorial Hospital.
Dr. Onorato's NPI, 1679504559, was assigned on July 6, 2006. Dr. Onorato graduated from Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University in 1984. Dr. Onorato holds Texas license K3367.
- NPI
- 1679504559NPI Registry (opens in a new tab)
- NPI enumeration date
- July 6, 2006
- NPI status
- Active
- Practice phone
- (509) 758-5511
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 68
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. James J. Onorato practices at TriState Health in Clarkston, Washington
Dr. Onorato's primary practice is TriState Health, at 1221 Highland Avenue, Clarkston, WA 99403 in Asotin County. The practice phone is (509) 758-5511.
- TriState Health1221 Highland Avenue, Clarkston, WA 99403 · Asotin CountyPhone(509) 758-5511
Source: Dmand AI Affiliation Data
Dr. James J. Onorato is affiliated with 6 sites of care and 1 medical group
Dr. Onorato's primary practice is TriState Health in Clarkston, Washington, part of Tri-State Memorial Hospital. Dr. Onorato is also affiliated with Pullman Regional Hospital. The medical group on file is TriState Health. Dmand AI also links Dr. Onorato to 3 more hospitals and 1 dialysis center, each named with a free account. Dr. Onorato's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. James J. Onorato's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Onorato practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| TriState Health | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Tri-State Memorial Hospital and 6.2K+ hospitals, with verified contacts in the same login.
Dr. James J. Onorato is one of 2,689 internists in Washington
Internal medicine is Dr. Onorato's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Onorato is licensed in Texas.
Specialties and state licenses
- Internal medicine, TexasPrimary
Internists near Dr. Onorato
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. James J. Onorato billed Medicare for 148 services in 2021
CMS data shows 148 Medicare services from Dr. Onorato across 4 procedure codes in 2021. Medicare paid $12,160 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Onorato's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 972021: 14853%
Dr. Onorato compared with the Washington median for internists, 2021
- Dr. Onorato
- Washington median
- Medicare services
- 148vs 36459% below
- Part D claims
- 2,466vs 18213.5 times
Medians across 2,604 internists in Washington with Dmand AI profiles that report each measure.
Dr. Onorato's most billed Medicare procedure codes, 2021
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Onorato?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Onorato and other internists in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. James J. Onorato's patients have a median age of 77
Across all payers, Dmand AI patient panel data puts Dr. Onorato's median patient age at 77, with 55% women.
Dr. Onorato's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 77
Patient panel by sex, all payers
- Women55%
- Men45%
Source: Dmand AI Patient Panel Data
Dr. James J. Onorato wrote 2,779 Medicare Part D claims in 2024
In 2024, Dr. Onorato wrote 2,779 Medicare Part D claims for 346 patients. 91% of them were for generic drugs. CMS names the drug for 2,466 of them, across 54 drugs with 11 or more claims each, at $99,351 in total drug cost. In 2023, CMS named 2,397 claims across 51 drugs.
Dr. Onorato's Part D claims by kind of drug, 2024
- Generic2,539 claims91%
- Brand-name and other240 claims9%
Dr. Onorato's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Onorato's Part D claims, 2024
- Antibiotics1%26 of 2,779 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,3972024: 2,4663%
Drugs named by CMS: 54 in 2024, 51 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. James J. Onorato received $57 in industry payments from 2017 to 2019
CMS Open Payments shows 3 general payments to Dr. Onorato from 3 drug and device companies from 2017 to 2019. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $27.
General payments to Dr. Onorato by program year, 2017 to 2019
Companies that paid Dr. Onorato the most, 2017 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. James J. Onorato graduated from Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University
Dr. Onorato graduated from Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University in 1984.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. James J. Onorato's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. James J. Onorato
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. James J. Onorato's NPI number?
Dr. James J. Onorato's NPI number is 1679504559. It was assigned on July 6, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. James J. Onorato?
Dr. James J. Onorato is an internist in Clarkston, Washington. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. James J. Onorato practice?
Dr. Onorato practices at 1221 Highland Avenue, Clarkston, WA 99403. Dr. Onorato's primary practice is TriState Health in Clarkston, Washington, part of Tri-State Memorial Hospital. Dmand AI also links Dr. Onorato to 3 hospitals and 1 dialysis center.
What is Dr. James J. Onorato's office phone number?
The practice phone on file for Dr. Onorato is (509) 758-5511.
What is Dr. James J. Onorato's medical license number?
Dr. Onorato holds Texas license K3367.
Which hospitals is Dr. James J. Onorato affiliated with?
Dr. Onorato practices at TriState Health in Clarkston, Washington. Dr. Onorato is also affiliated with Pullman Regional Hospital. Dmand AI links Dr. Onorato to 3 more hospitals.
What medical group is Dr. James J. Onorato part of?
Dr. Onorato is linked to TriState Health.
Does Dr. James J. Onorato accept Medicare?
Yes. CMS data shows Dr. Onorato billed Medicare for 148 services in 2021.
What services does Dr. James J. Onorato bill to Medicare?
In 2021, Dr. Onorato's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99223).
Where did Dr. James J. Onorato go to medical school?
Dr. Onorato graduated from Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University in 1984.
Show 3 more questionsShow fewer questions
What drugs does Dr. James J. Onorato prescribe most?
In 2024 Medicare Part D data, Dr. Onorato's most prescribed drugs by claims were Furosemide, Losartan Potassium and Amlodipine Besylate.
Has Dr. James J. Onorato received payments from drug or device companies?
CMS Open Payments shows $57 in general payments to Dr. Onorato from 3 companies from 2017 to 2019. The largest total came from Pfizer Inc.
How long has Dr. James J. Onorato been practicing?
Dr. Onorato graduated from medical school in 1984, 42 years ago.
Selling to internal medicine practices?
See internists in Washington by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card