Dr. Samuel Joseph Buffington Roberts, DO
- Part D claims, 2024
- 433
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2021
- Practice address
- 3270 Sw Pavilion Loop, Portland, OR 97239
- Practice phone
- Call (503) 494-3442
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
University Professional Services - Primary Care - Portland (SW)
Multi-specialty group site · Portland, Oregon
Find Dr. Roberts' 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. Samuel Joseph Buffington Roberts is a nephrologist in Portland, Oregon
Dr. Roberts practices at University Professional Services - Primary Care - Portland (SW) in Portland, Oregon.
Dr. Roberts' NPI, 1831775220, was assigned on March 24, 2021. Dr. Roberts holds Oregon license PG226441.
- NPI
- 1831775220NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3173923919
- NPI enumeration date
- March 24, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (503) 494-3442
- 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. Samuel Joseph Buffington Roberts practices at 2 locations in Portland, Oregon
Dr. Roberts' primary practice is University Professional Services - Primary Care - Portland (SW), at 3270 Sw Pavilion Loop, Portland, OR 97239. The practice phone is (503) 494-3442. The NPI Registry lists Dr. Roberts' practice address as 1015 Nw 22nd Ave, Portland, OR 97210.
- University Professional Services - Primary Care - Portland (SW)Primary3270 Sw Pavilion Loop, Portland, OR 97239Phone(503) 494-3442
- NPI Registry address1015 Nw 22nd Ave, Portland, OR 97210 · Multnomah CountyPhone(503) 494-3442
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Samuel Joseph Buffington Roberts is affiliated with 1 site of care and 1 medical group
Dr. Roberts' primary practice is University Professional Services - Primary Care - Portland (SW) in Portland, Oregon. The medical group on file is Oregon Health & Science University (OHSU).
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Samuel Joseph Buffington Roberts' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Roberts practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University Professional Services - Primary Care - Portland (SW) | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Samuel Joseph Buffington Roberts is one of 127 nephrologists in Oregon
Nephrology is Dr. Roberts' primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Roberts is licensed in Oregon.
Specialties and state licenses
- Nephrology, OregonPrimary
Nephrologists near Dr. Roberts
Counts of nephrologists 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. Samuel Joseph Buffington Roberts' patients have a median age of 70
Across all payers, Dmand AI patient panel data puts Dr. Roberts' median patient age at 70, with 67% women.
Dr. Roberts' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women67%
- Men33%
Source: Dmand AI Patient Panel Data
Dr. Samuel Joseph Buffington Roberts wrote 433 Medicare Part D claims in 2024
In 2024, Dr. Roberts wrote 433 Medicare Part D claims for 95 patients. 87% of them were for generic drugs. CMS names the drug for 197 of them, across 12 drugs with 11 or more claims each, at $15,962 in total drug cost.
Dr. Roberts' Part D claims by kind of drug, 2024
- Generic376 claims87%
- Brand-name45 claims10%
- Other12 claims3%
Dr. Roberts' 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. Roberts' Part D claims, 2024
- Opioids3%13 of 433 claims
- Antipsychotics, patients 65 and over3%12 of 433 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
How Dr. Samuel Joseph Buffington Roberts takes part in Medicare
Dr. Roberts accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Sources for Dr. Samuel Joseph Buffington Roberts'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| 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)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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. Samuel Joseph Buffington Roberts
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. Samuel Joseph Buffington Roberts' NPI number?
Dr. Samuel Joseph Buffington Roberts' NPI number is 1831775220. It was assigned on March 24, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Samuel Joseph Buffington Roberts?
Dr. Samuel Joseph Buffington Roberts is a nephrologist in Portland, Oregon. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Samuel Joseph Buffington Roberts practice?
Dr. Roberts practices at 3270 Sw Pavilion Loop, Portland, OR 97239. Dr. Roberts also practices at 1015 Nw 22nd Ave, Portland, OR 97210. Dr. Roberts' primary practice is University Professional Services - Primary Care - Portland (SW) in Portland, Oregon.
What is Dr. Samuel Joseph Buffington Roberts' office phone number?
The practice phone on file for Dr. Roberts is (503) 494-3442.
What is Dr. Samuel Joseph Buffington Roberts' medical license number?
Dr. Roberts holds Oregon license PG226441.
What medical group is Dr. Samuel Joseph Buffington Roberts part of?
Dr. Roberts is linked to Oregon Health & Science University (OHSU).
Does Dr. Samuel Joseph Buffington Roberts accept Medicare?
Yes. CMS lists Dr. Roberts as accepting Medicare assignment.
What drugs does Dr. Samuel Joseph Buffington Roberts prescribe most?
In 2024 Medicare Part D data, Dr. Roberts' most prescribed drugs by claims were Atorvastatin Calcium, Omeprazole and Sertraline HCl.
How long has Dr. Samuel Joseph Buffington Roberts been practicing?
Dr. Roberts' NPI was assigned in 2021.
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