Dr. William Russell Dewar III, MD
- Part D claims, 2024
- 12,323
- Hospital affiliations
- 1
- Industry payments
- $4,345
- Medical group
- 1
- State license
- 1
- Practice address
- 1822 Mulberry Street, Scranton, PA 18510
- Practice phone
- Call (570) 703-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Dewar'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. William Russell Dewar III is an internist in Scranton, Pennsylvania
Dr. Dewar practices at Geisinger Community Medical Center in Scranton, Pennsylvania, part of Risant Health.
Dr. Dewar's NPI, 1346202744, was assigned on April 3, 2006. Dr. Dewar graduated from Universidad de Guadalajara in 1975. Dr. Dewar holds Pennsylvania license MD037244L.
- NPI
- 1346202744NPI Registry (opens in a new tab)
- NPI enumeration date
- April 3, 2006
- NPI status
- Active
- Practice phone
- (570) 703-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 77
- Medical school graduation
- 1975
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. William Russell Dewar III practices at 2 locations in Scranton, Pennsylvania
Dr. Dewar's primary practice is Geisinger Community Medical Center, at 1822 Mulberry Street, Scranton, PA 18510 in Lackawanna County. The practice phone is (570) 703-8000. Dr. Dewar also practices at Geisinger Community Medical Center, 1800 Mulberry St, Scranton, PA 18510.
- Geisinger Community Medical CenterPrimary1822 Mulberry Street, Scranton, PA 18510 · Lackawanna CountyPhone(570) 703-8000
- Geisinger Community Medical Center1800 Mulberry St, Scranton, PA 18510 · Lackawanna CountyPhone(570) 969-8900
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. William Russell Dewar III is affiliated with 2 sites of care and 1 medical group
Dr. Dewar's primary practice is Geisinger Community Medical Center in Scranton, Pennsylvania, part of Risant Health. The medical group on file is Wayne Memorial Community Health Centers. Dmand AI also links Dr. Dewar to 1 more community health center, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William Russell Dewar III's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Dewar practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Geisinger Community Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William Russell Dewar III is one of 5,665 internists in Pennsylvania
Internal medicine is Dr. Dewar's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Dewar is licensed in Pennsylvania.
Specialties and state licenses
- Internal medicine, PennsylvaniaPrimary
Internists near Dr. Dewar
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. William Russell Dewar III's patients have a median age of 63
Across all payers, Dmand AI patient panel data puts Dr. Dewar's median patient age at 63, with 56% women.
Dr. Dewar's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women56%
- Men44%
Source: Dmand AI Patient Panel Data
Dr. William Russell Dewar III wrote 12,323 Medicare Part D claims in 2024
In 2024, Dr. Dewar wrote 12,323 Medicare Part D claims for 316 patients. 88% of them were for generic drugs. CMS names the drug for 11,756 of them, across 140 drugs with 11 or more claims each, at $426,436 in total drug cost. In 2023, CMS named 10,605 claims across 153 drugs.
Dr. Dewar's Part D claims by kind of drug, 2024
- Generic10,802 claims88%
- Brand-name and other1,521 claims12%
Dr. Dewar'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. Dewar's Part D claims, 2024
- Opioids1%102 of 12,323 claims
- Antibiotics1%89 of 12,323 claims
- Antipsychotics, patients 65 and over1%148 of 12,323 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: 10,6052024: 11,75611%
Drugs named by CMS: 140 in 2024, 153 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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Dr. William Russell Dewar III received $4,345 in industry payments from 2016 to 2025
CMS Open Payments shows 267 general payments to Dr. Dewar from 36 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Astellas Pharma US Inc paid the most, $479.
General payments to Dr. Dewar by program year, 2016 to 2025
General payments to Dr. Dewar by kind, 2016 to 2025
- Food and beverage$4,339100%
- Education$50%
Companies that paid Dr. Dewar the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William Russell Dewar III graduated from Universidad de Guadalajara
Dr. Dewar graduated from Universidad de Guadalajara in 1975.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William Russell Dewar III'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 DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| 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. William Russell Dewar III
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. William Russell Dewar III's NPI number?
Dr. William Russell Dewar III's NPI number is 1346202744. It was assigned on April 3, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. William Russell Dewar III?
Dr. William Russell Dewar III is an internist in Scranton, Pennsylvania. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. William Russell Dewar III practice?
Dr. Dewar practices at 1822 Mulberry Street, Scranton, PA 18510. Dr. Dewar also practices at 1800 Mulberry St, Scranton, PA 18510. Dr. Dewar's primary practice is Geisinger Community Medical Center in Scranton, Pennsylvania, part of Risant Health. Dmand AI also links Dr. Dewar to 1 community health center.
What is Dr. William Russell Dewar III's office phone number?
The practice phone on file for Dr. Dewar is (570) 703-8000.
What is Dr. William Russell Dewar III's medical license number?
Dr. Dewar holds Pennsylvania license MD037244L.
Which hospitals is Dr. William Russell Dewar III affiliated with?
Dr. Dewar practices at Geisinger Community Medical Center in Scranton, Pennsylvania.
What medical group is Dr. William Russell Dewar III part of?
Dr. Dewar is linked to Wayne Memorial Community Health Centers.
Where did Dr. William Russell Dewar III go to medical school?
Dr. Dewar graduated from Universidad de Guadalajara in 1975.
What drugs does Dr. William Russell Dewar III prescribe most?
In 2024 Medicare Part D data, Dr. Dewar's most prescribed drugs by claims were Furosemide, Atorvastatin Calcium and Levothyroxine Sodium.
Has Dr. William Russell Dewar III received payments from drug or device companies?
CMS Open Payments shows $4,345 in general payments to Dr. Dewar from 36 companies from 2016 to 2025. The largest total came from Astellas Pharma US Inc.
How long has Dr. William Russell Dewar III been practicing?
Dr. Dewar graduated from medical school in 1975, 51 years ago.
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