Dr. Steven Marshak, DO
- Industry payments
- $387
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2005
- Practice address
- 500 SW Ramsey Ave, Grants Pass, OR 97527
- Practice phone
- Call (541) 472-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Asante Three Rivers Medical Center
Grants Pass, Oregon
Find Dr. Marshak'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. Steven Marshak is a pediatrician in Grants Pass, Oregon
Dr. Marshak practices at Asante Three Rivers Medical Center in Grants Pass, Oregon.
Dr. Marshak's NPI, 1568446219, was assigned on December 5, 2005. Dr. Marshak holds Oregon license DO24562.
- NPI
- 1568446219NPI Registry (opens in a new tab)
- NPI enumeration date
- December 5, 2005
- NPI status
- Active
- Practice phone
- (541) 472-7000
- 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
Dr. Steven Marshak practices at Asante Three Rivers Medical Center in Grants Pass, Oregon
Dr. Marshak's primary practice is Asante Three Rivers Medical Center, at 500 SW Ramsey Ave, Grants Pass, OR 97527 in Josephine County. The practice phone is (541) 472-7000.
- Asante Three Rivers Medical Center500 SW Ramsey Ave, Grants Pass, OR 97527 · Josephine CountyPhone(541) 472-7000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Steven Marshak is affiliated with 2 sites of care and 1 medical group
Dr. Marshak's primary practice is Asante Three Rivers Medical Center in Grants Pass, Oregon. Dmand AI also links Dr. Marshak to 1 rural health clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Steven Marshak's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marshak practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Asante Three Rivers Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Steven Marshak is one of 675 pediatricians in Oregon
Pediatrics is Dr. Marshak's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Marshak is licensed in Oregon.
Specialties and state licenses
- Pediatrics, OregonPrimary
Pediatricians near Dr. Marshak
Counts of pediatricians 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. Steven Marshak's patients have a median age of 10
Across all payers, Dmand AI patient panel data puts Dr. Marshak's median patient age at 10, with 37% women.
Dr. Marshak's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 10
Patient panel by sex, all payers
- Women37%
- Men63%
Source: Dmand AI Patient Panel Data
Dr. Steven Marshak received $387 in industry payments from 2016 to 2025
CMS Open Payments shows 19 general payments to Dr. Marshak from 4 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 74% of the total. Shire North American Group Inc paid the most, $127.
General payments to Dr. Marshak by program year, 2016 to 2025
General payments to Dr. Marshak by kind, 2016 to 2025
- Food and beverage$28874%
- Education$9926%
Companies that paid Dr. Marshak the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Steven Marshak'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 DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Industry payments | Open Payments (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 Dr. Steven Marshak
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. Steven Marshak's NPI number?
Dr. Steven Marshak's NPI number is 1568446219. It was assigned on December 5, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Steven Marshak?
Dr. Steven Marshak is a pediatrician in Grants Pass, Oregon. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Steven Marshak practice?
Dr. Marshak practices at 500 SW Ramsey Ave, Grants Pass, OR 97527. Dr. Marshak's primary practice is Asante Three Rivers Medical Center in Grants Pass, Oregon. Dmand AI also links Dr. Marshak to 1 rural health clinic and 1 medical group.
What is Dr. Steven Marshak's office phone number?
The practice phone on file for Dr. Marshak is (541) 472-7000.
What is Dr. Steven Marshak's medical license number?
Dr. Marshak holds Oregon license DO24562.
Has Dr. Steven Marshak received payments from drug or device companies?
CMS Open Payments shows $387 in general payments to Dr. Marshak from 4 companies from 2016 to 2025. The largest total came from Shire North American Group Inc.
How long has Dr. Steven Marshak been practicing?
Dr. Marshak's NPI was assigned in 2005.
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