Dr. Robert John Gross, MD
- Part D claims, 2021
- 110
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 2386 Nw Hoyt St, Portland, OR 97210-3219
- Practice phone
- Call (503) 228-5909
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
James H. Powers
Behavioral health practice · Portland, Oregon
Find Dr. Gross' 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. Robert John Gross is a neurologist in Portland, Oregon
Dr. Gross practices at James H. Powers in Portland, Oregon.
Dr. Gross' NPI, 1134297948, was assigned on December 1, 2006. Dr. Gross holds Oregon license 11129.
- NPI
- 1134297948NPI Registry (opens in a new tab)
- NPI enumeration date
- December 1, 2006
- NPI status
- Active
- Practice phone
- (503) 228-5909
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert John Gross practices at James H. Powers in Portland, Oregon
Dr. Gross' primary practice is James H. Powers, at 2386 Nw Hoyt St, Portland, OR 97210-3219. The practice phone is (503) 228-5909.
- James H. Powers2386 Nw Hoyt St, Portland, OR 97210-3219Phone(503) 228-5909
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert John Gross is affiliated with 1 site of care and 1 medical group
Dr. Gross' primary practice is James H. Powers in Portland, Oregon. Dmand AI also links Dr. Gross to 1 medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Robert John Gross' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gross practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| James H. Powers | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert John Gross is one of 246 neurologists in Oregon
Neurology is Dr. Gross' primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Gross is licensed in Oregon.
Specialties and state licenses
- Neurology, OregonPrimary
Neurologists near Dr. Gross
Counts of neurologists 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. Robert John Gross' patients have a median age of 48
Across all payers, Dmand AI patient panel data puts Dr. Gross' median patient age at 48, with 33% women.
Dr. Gross' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 48
Patient panel by sex, all payers
- Women33%
- Men67%
Source: Dmand AI Patient Panel Data
Dr. Robert John Gross wrote 110 Medicare Part D claims in 2021
In 2021, Dr. Gross wrote 110 Medicare Part D claims. They cover 6 drugs, with $4,472 in total drug cost. In 2020, CMS named 100 claims across 5 drugs.
Dr. Gross' most prescribed drugs by claims, 2021
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, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 1002021: 11010%
Drugs named by CMS: 6 in 2021, 5 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Sources for Dr. Robert John Gross'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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) |
| 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. Robert John Gross
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. Robert John Gross' NPI number?
Dr. Robert John Gross' NPI number is 1134297948. It was assigned on December 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert John Gross?
Dr. Robert John Gross is a neurologist in Portland, Oregon. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Robert John Gross practice?
Dr. Gross practices at 2386 Nw Hoyt St, Portland, OR 97210-3219. Dr. Gross' primary practice is James H. Powers in Portland, Oregon. Dmand AI also links Dr. Gross to 1 medical group.
What is Dr. Robert John Gross' office phone number?
The practice phone on file for Dr. Gross is (503) 228-5909.
What is Dr. Robert John Gross' medical license number?
Dr. Gross holds Oregon license 11129.
What drugs does Dr. Robert John Gross prescribe most?
In 2021 Medicare Part D data, Dr. Gross' most prescribed drugs by claims were Bupropion XL, Escitalopram Oxalate and Remeron.
How long has Dr. Robert John Gross been practicing?
Dr. Gross' NPI was assigned in 2006.
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