Mario Diaz, PA
- Medicare services, 2021
- 126
- Part D claims, 2024
- 11
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 550 SE Clay St, Dallas, OR 97338
- Practice phone
- Call (503) 623-8301
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
West Valley Hospital
Dallas, Oregon
Find Mario Diaz'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.
Mario Diaz is an internist in Dallas, Oregon
Mario Diaz practices at West Valley Hospital in Dallas, Oregon.
Mario Diaz's NPI, 1164460697, was assigned on June 4, 2006. Mario Diaz holds Oregon license PA057229.
- NPI
- 1164460697NPI Registry (opens in a new tab)
- NPI enumeration date
- June 4, 2006
- NPI status
- Active
- Practice phone
- (503) 623-8301
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Mario Diaz practices at West Valley Hospital in Dallas, Oregon
Mario Diaz's primary practice is West Valley Hospital, at 550 SE Clay St, Dallas, OR 97338 in Polk County. The practice phone is (503) 623-8301.
- West Valley Hospital550 SE Clay St, Dallas, OR 97338 · Polk CountyPhone(503) 623-8301
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Mario Diaz is affiliated with 2 sites of care and 1 medical group
Mario Diaz's primary practice is West Valley Hospital in Dallas, Oregon. The medical group on file is Salem Clinic. Dmand AI also links Mario Diaz to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Mario Diaz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mario Diaz practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| West Valley Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Mario Diaz is one of 1,680 internists in Oregon
Internal medicine is Mario Diaz's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Mario Diaz is licensed in Oregon.
Specialties and state licenses
- Internal medicine, OregonPrimary
Internists near Mario Diaz
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
Mario Diaz billed Medicare for 126 services in 2021
CMS data shows 126 Medicare services from Mario Diaz across 6 procedure codes in 2021. Medicare paid $3,389 for them. Every service was in an office.
Mario Diaz's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 1922021: 5671%
- Lab and pathology
- 2020: 2202021: 3086%
- Other services
- 2020: 452021: 2056%
- Surgery
- 2020: 602021: 2067%
- Tests and treatments
- 2020: 112021: 0100%
Mario Diaz compared with the Oregon median for internists, 2021
- Mario Diaz
- Oregon median
- Medicare services
- 126vs 30058% below
- Part D claims
- 11vs 22295% below
Medians across 1,791 internists in Oregon with Dmand AI profiles that report each measure.
Mario Diaz'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Mario Diaz and other internists in Oregon.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Mario Diaz's patients have a median age of 71
Across all payers, Dmand AI patient panel data puts Mario Diaz's median patient age at 71, with 56% women.
Mario Diaz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women56%
- Men44%
Source: Dmand AI Patient Panel Data
Mario Diaz wrote 11 Medicare Part D claims in 2024
In 2024, Mario Diaz wrote 11 Medicare Part D claims. 100% of them were for generic drugs. They cover 1 drug, with $192 in total drug cost. In 2023, CMS named 38 claims across 2 drugs.
Mario Diaz'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 382024: 1171%
Drugs named by CMS: 1 in 2024, 2 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
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Sources for Mario Diaz'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| 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 Mario Diaz
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mario Diaz's NPI number?
Mario Diaz's NPI number is 1164460697. It was assigned on June 4, 2006, and it is active in the NPI Registry.
What does Mario Diaz specialize in?
Mario Diaz is an internist in Dallas, Oregon. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Mario Diaz practice?
Mario Diaz practices at 550 SE Clay St, Dallas, OR 97338. Mario Diaz's primary practice is West Valley Hospital in Dallas, Oregon. Dmand AI also links Mario Diaz to 1 group practice or clinic.
What is Mario Diaz's office phone number?
The practice phone on file for Mario Diaz is (503) 623-8301.
What is Mario Diaz's medical license number?
Mario Diaz holds Oregon license PA057229.
What medical group is Mario Diaz part of?
Mario Diaz is linked to Salem Clinic.
Does Mario Diaz accept Medicare?
Yes. CMS data shows Mario Diaz billed Medicare for 126 services in 2021.
What services does Mario Diaz bill to Medicare?
In 2021, Mario Diaz's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and surgery: heart and blood vessels (36415).
What drugs does Mario Diaz prescribe most?
In 2024 Medicare Part D data, Mario Diaz's most prescribed drugs by claims were Nortriptyline HCl.
How long has Mario Diaz been practicing?
Mario Diaz's NPI was assigned in 2006.
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