Dr. Geoffrey S. Simmons, MD
- Part D claims, 2017
- 64
- Affiliated sites
- 2
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 1200 Hilyard St Ste 230 Suite 230, Eugene, OR 97401
- Practice phone
- Call (458) 205-6011
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Peacehealth Medical Group - Eugene (1200 Hilyard St)
Multi-specialty group site · Eugene, Oregon
Find Dr. Simmons' 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. Geoffrey S. Simmons is an internist in Dayton, Ohio
Dr. Simmons practices at Peacehealth Medical Group - Eugene (1200 Hilyard St) in Eugene, Oregon.
Dr. Simmons' NPI, 1295703825, was assigned on March 9, 2006. Dr. Simmons holds Oregon license MD08886.
- NPI
- 1295703825NPI Registry (opens in a new tab)
- NPI enumeration date
- March 9, 2006
- NPI status
- Active
- Practice phone
- (458) 205-6011
- 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. Geoffrey S. Simmons practices in Eugene and Dayton
Dr. Simmons' primary practice is Peacehealth Medical Group - Eugene (1200 Hilyard St), at 1200 Hilyard St Ste 230 Suite 230, Eugene, OR 97401. The practice phone is (458) 205-6011. The NPI Registry lists Dr. Simmons' practice address as 3535 Southern Blvd, Dayton, OH 45429.
- Peacehealth Medical Group - Eugene (1200 Hilyard St)Primary1200 Hilyard St Ste 230 Suite 230, Eugene, OR 97401Phone(458) 205-6011
- NPI Registry address3535 Southern Blvd, Dayton, OH 45429 · Montgomery CountyPhone(541) 687-6041
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Geoffrey S. Simmons is affiliated with 2 sites of care and 2 medical groups
Dr. Simmons' primary practice is Peacehealth Medical Group - Eugene (1200 Hilyard St) in Eugene, Oregon. The medical group on file is PeaceHealth Medical Group Behavioral Health. Dmand AI also links Dr. Simmons to 1 more group practice or clinic and 1 medical group, each 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. Geoffrey S. Simmons' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Simmons practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Peacehealth Medical Group - Eugene (1200 Hilyard St) | 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. Geoffrey S. Simmons is one of 4,708 internists in Ohio
Internal medicine is Dr. Simmons' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Simmons is licensed in Oregon.
Specialties and state licenses
- Internal medicine, OregonPrimary
Internists near Dr. Simmons
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. Geoffrey S. Simmons' patients have a median age of 75
Across all payers, Dmand AI patient panel data puts Dr. Simmons' median patient age at 75, with 33% women.
Dr. Simmons' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women33%
- Men67%
Source: Dmand AI Patient Panel Data
Dr. Geoffrey S. Simmons wrote 64 Medicare Part D claims in 2017
In 2017, Dr. Simmons wrote 64 Medicare Part D claims. They cover 5 drugs, with $7,293 in total drug cost. In 2016, CMS named 1,531 claims across 45 drugs.
Dr. Simmons' most prescribed drugs by claims, 2017
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, 2016 to 2017
- 2016
- 2017
- Claims for drugs CMS names
- 2016: 1,5312017: 6496%
Drugs named by CMS: 5 in 2017, 45 in 2016.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Sources for Dr. Geoffrey S. Simmons'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) |
| 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. Geoffrey S. Simmons
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. Geoffrey S. Simmons' NPI number?
Dr. Geoffrey S. Simmons' NPI number is 1295703825. It was assigned on March 9, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Geoffrey S. Simmons?
Dr. Geoffrey S. Simmons is an internist in Dayton, Ohio. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Geoffrey S. Simmons practice?
Dr. Simmons practices at 1200 Hilyard St Ste 230 Suite 230, Eugene, OR 97401. Dr. Simmons also practices at 3535 Southern Blvd, Dayton, OH 45429. Dr. Simmons' primary practice is Peacehealth Medical Group - Eugene (1200 Hilyard St) in Eugene, Oregon. Dmand AI also links Dr. Simmons to 1 group practice or clinic and 1 medical group.
What is Dr. Geoffrey S. Simmons' office phone number?
The practice phone on file for Dr. Simmons is (458) 205-6011.
What is Dr. Geoffrey S. Simmons' medical license number?
Dr. Simmons holds Oregon license MD08886.
What medical group is Dr. Geoffrey S. Simmons part of?
Dr. Simmons is linked to PeaceHealth Medical Group Behavioral Health. Dmand AI links Dr. Simmons to 1 more medical group.
What drugs does Dr. Geoffrey S. Simmons prescribe most?
In 2017 Medicare Part D data, Dr. Simmons' most prescribed drugs by claims were Warfarin Sodium, Amlodipine Besylate and Donepezil HCl.
How long has Dr. Geoffrey S. Simmons been practicing?
Dr. Simmons' NPI was assigned in 2006.
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