Marissa A. Reen, PA-C
- Medicare patients, 2024
- 331
- Part D claims, 2024
- 3,540
- MIPS score, 2024
- 94
- Hospital affiliations
- 3
- Industry payments
- $1,173
- Practice address
- 360 S Garden Way, Suite 100, Eugene, OR 97401
- Practice phone
- Call (541) 636-9100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Chase Gardens Surgery Center
Surgery Center - Medicare-Certified · Eugene, Oregon
Find Marissa Reen'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.
Marissa A. Reen is a physician assistant in Eugene, Oregon
Marissa Reen practices at Chase Gardens Surgery Center in Eugene, Oregon.
Marissa Reen's NPI, 1346617792, was assigned on September 1, 2015. Marissa Reen holds Oregon license PA174229.
- NPI
- 1346617792NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7618287251
- NPI enumeration date
- September 1, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (541) 636-9100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Marissa A. Reen practices at Chase Gardens Surgery Center in Eugene, Oregon
Marissa Reen's primary practice is Chase Gardens Surgery Center, at 360 S Garden Way, Suite 100, Eugene, OR 97401. The practice phone is (541) 636-9100.
- Chase Gardens Surgery Center360 S Garden Way, Suite 100, Eugene, OR 97401Phone(541) 636-9100
Source: Dmand AI Affiliation Data
Marissa A. Reen is affiliated with 5 sites of care and 1 medical group
Marissa Reen's primary practice is Chase Gardens Surgery Center in Eugene, Oregon. Marissa Reen is also affiliated with PeaceHealth Sacred Heart Medical Center RiverBend. The medical group on file is Pain Specialists of Oregon. Dmand AI also links Marissa Reen to 2 more hospitals and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Marissa A. Reen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Marissa Reen practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Chase Gardens Surgery Center | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Marissa A. Reen is one of 1,937 physician assistants in Oregon
Physician assistant is Marissa Reen's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Marissa Reen is licensed in Oregon.
Specialties and state licenses
- Physician assistant, OregonPrimary
Physician assistants near Marissa Reen
Counts of physician assistants 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
Marissa A. Reen treated 331 Medicare patients in 2024, average age 70
CMS counts 331 Medicare patients who saw Marissa Reen in 2024. The largest group is 65 to 74, with 148 patients. 75% of them have arthritis, and 68% have high blood pressure. 18% are also on Medicaid. Their average risk score is 1.38, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Marissa Reen's median patient age at 70, with 61% women.
Marissa Reen's Medicare patients by age, 2024
Marissa Reen's Medicare patients by sex, 2024
- Women22869%
- Men10331%
Chronic conditions among Marissa Reen's Medicare patients, 2024
- Arthritis75%
- High blood pressure68%
- High cholesterol68%
- Mood disorders41%
- Depression37%
- Anxiety33%
- Diabetes27%
- Chronic kidney disease21%
Share of Medicare patients with each condition. A patient can have several.
Marissa Reen's 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
- Women61%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Marissa A. Reen wrote 3,540 Medicare Part D claims in 2024
In 2024, Marissa Reen wrote 3,540 Medicare Part D claims for 583 patients. 96% of them were for generic drugs.
Marissa Reen's Part D claims by kind of drug, 2024
- Generic3,392 claims96%
- Brand-name148 claims4%
Drug classes CMS tracks in Marissa Reen's Part D claims, 2024
- Opioids51%1,819 of 3,540 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Marissa A. Reen scored 94 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 94 out of 100 for Marissa Reen for performance year 2024, reported as part of a group. Marissa Reen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Marissa Reen as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Marissa Reen's MIPS scores, performance year 2024
- 94of 100Final score
- 86.8of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 86of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Marissa A. Reen received $1,173 in industry payments in 2025
CMS Open Payments shows 28 general payments to Marissa Reen from 4 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $925.
Companies that paid Marissa Reen the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Marissa A. Reen'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 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| 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 Marissa A. Reen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Marissa A. Reen's NPI number?
Marissa A. Reen's NPI number is 1346617792. It was assigned on September 1, 2015, and it is active in the NPI Registry.
What does Marissa A. Reen specialize in?
Marissa A. Reen is a physician assistant in Eugene, Oregon. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Marissa A. Reen practice?
Marissa Reen practices at 360 S Garden Way, Suite 100, Eugene, OR 97401. Marissa Reen's primary practice is Chase Gardens Surgery Center in Eugene, Oregon. Dmand AI also links Marissa Reen to 2 hospitals and 1 group practice or clinic.
What is Marissa A. Reen's office phone number?
The practice phone on file for Marissa Reen is (541) 636-9100.
What is Marissa A. Reen's medical license number?
Marissa Reen holds Oregon license PA174229.
Which hospitals is Marissa A. Reen affiliated with?
Marissa Reen is affiliated with PeaceHealth Sacred Heart Medical Center RiverBend. Dmand AI links Marissa Reen to 2 more hospitals.
What medical group is Marissa A. Reen part of?
Marissa Reen is linked to Pain Specialists of Oregon.
Does Marissa A. Reen accept Medicare?
Yes. CMS lists Marissa Reen as accepting Medicare assignment.
Does Marissa A. Reen offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Marissa Reen as offering telehealth services.
What is Marissa A. Reen's MIPS score?
Marissa Reen's MIPS final score for performance year 2024 is 94 out of 100, reported as part of a group.
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How many Medicare patients does Marissa A. Reen see?
CMS counts 331 Medicare patients who saw Marissa Reen in 2024, with an average age of 70.
Has Marissa A. Reen received payments from drug or device companies?
CMS Open Payments shows $1,173 in general payments to Marissa Reen from 4 companies from 2025 to 2025. The largest total came from Boston Scientific Corporation.
How long has Marissa A. Reen been practicing?
Marissa Reen graduated from medical school in 2015, 11 years ago.
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