Dr. Riley L. Cooper, DO

  • Machias, ME
  • Emergency medicine physician
NPI1457692980PAC ID9335432020
Medicare services, 2023
170
Medicare patients, 2024
17
Part D claims, 2024
174
MIPS score, 2024
85
Hospital affiliations
2
Practice address
11 Hospital Drive, Machias, ME 04654
Practice phone
Call (207) 255-3356
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Down East Community Hospital

Hospital · Machias, Maine

See all 6 affiliations

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Dr. Riley L. Cooper is an emergency medicine physician in Machias, Maine

Dr. Cooper practices at Down East Community Hospital in Machias, Maine, part of Down East Community Hospital.

Dr. Cooper's NPI, 1457692980, was assigned on March 7, 2013. Dr. Cooper holds Maine license DO2698.

NPI and contact details
Medicare PAC ID
9335432020
NPI enumeration date
March 7, 2013
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(207) 255-3356
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
39
Medical school graduation
2013

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Riley L. Cooper practices at Down East Community Hospital in Machias, Maine

Dr. Cooper's primary practice is Down East Community Hospital, at 11 Hospital Drive, Machias, ME 04654 in Washington County. The practice phone is (207) 255-3356.

Source: Dmand AI Affiliation Data

Dr. Riley L. Cooper is affiliated with 2 sites of care and 4 medical groups

Dr. Cooper's primary practice is Down East Community Hospital in Machias, Maine, part of Down East Community Hospital. Dr. Cooper is also affiliated with Central Maine Medical Center. The medical group on file is Down East Community Hospital. Dmand AI also links Dr. Cooper to 3 more medical groups, each named with a free account. Dr. Cooper's employer is on file too: a hospital.

See all 6 affiliations for Dr. Cooper

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Riley L. Cooper's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Cooper practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Down East Community HospitalAvailable with a free account
+1 more site and 3 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Riley L. Cooper is one of 410 emergency medicine physicians in Maine

Emergency medicine is Dr. Cooper's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Cooper's licenses on file in 2 states: Maine and Illinois.

Specialties and state licenses

  • Emergency medicine, MainePrimaryLicense DO2698 · taxonomy 207P00000X
  • Illinois licenseLicense 036139648

Emergency medicine physicians near Dr. Cooper

Counts of emergency medicine physicians 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. Riley L. Cooper billed Medicare for 170 services in 2023

CMS data shows 170 Medicare services from Dr. Cooper across 3 procedure codes in 2023, for 17 Medicare patients. Medicare paid $17,338 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2023170
Medicare patients17
Paid by Medicare$17,338
Procedure codes3

Dr. Cooper's Medicare services by type, 2022 to 2023

  • 2022
  • 2023
Office and hospital visits
2022: 1582023: 1708%

Dr. Cooper compared with the Maine median for emergency medicine physicians, 2023

  • Dr. Cooper
  • Maine median
Medicare services
170vs 1848% below
Medicare patients
17vs 19591% below
Part D claims
79vs 5836% above

Medians across 426 emergency medicine physicians in Maine with Dmand AI profiles that report each measure.

Dr. Cooper's most billed Medicare procedure codes, 2023

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Cooper

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Riley L. Cooper treated 17 Medicare patients in 2024, average age 70

CMS counts 17 Medicare patients who saw Dr. Cooper in 2024. 65% of them have high blood pressure. Their average risk score is 1.89, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Cooper's median patient age at 76, with 54% women.

Medicare patients, 202417
Average age70
Average risk score1.89

Chronic conditions among Dr. Cooper's Medicare patients, 2024

  1. High blood pressure65%

Share of Medicare patients with each condition. A patient can have several.

Dr. Cooper's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 76

Patient panel by sex, all payers

  • Women54%
  • Men46%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Riley L. Cooper wrote 174 Medicare Part D claims in 2024

In 2024, Dr. Cooper wrote 174 Medicare Part D claims for 122 patients. 93% of them were for generic drugs. CMS names the drug for 79 of them, across 5 drugs with 11 or more claims each, at $345 in total drug cost. In 2023, CMS named 89 claims across 5 drugs.

Part D claims, 2024174
Drugs named by CMS5
Total drug cost$345
Part D patients122

Dr. Cooper's Part D claims by kind of drug, 2024

  • Generic162 claims93%
  • Brand-name12 claims7%

Dr. Cooper'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. Cooper's Part D claims, 2024

  • Opioids7%12 of 174 claims
  • Antibiotics48%83 of 174 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: 892024: 7911%

Drugs named by CMS: 5 in 2024, 5 in 2023.

See all prescribing by Dr. Cooper

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

Dr. Riley L. Cooper scored 85 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Dr. Cooper for performance year 2024, reported as part of a group. Dr. Cooper accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Cooper's MIPS scores, performance year 2024

  • 85of 100Final score
  • 60of 100Quality
  • 99of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 74of 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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Dr. Riley L. Cooper received $99 in industry payments from 2016 to 2017

CMS Open Payments shows 5 general payments to Dr. Cooper from 3 drug and device companies from 2016 to 2017. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $50.

General payments to Dr. Cooper by program year, 2016 to 2017

Companies that paid Dr. Cooper the most, 2016 to 2017

Share is of all general payments to this clinician.

See all payments to Dr. Cooper

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Dr. Riley L. Cooper's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Riley L. Cooper

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. Riley L. Cooper's NPI number?

Dr. Riley L. Cooper's NPI number is 1457692980. It was assigned on March 7, 2013, and it is active in the NPI Registry.

What kind of doctor is Dr. Riley L. Cooper?

Dr. Riley L. Cooper is an emergency medicine physician in Machias, Maine. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).

Where does Dr. Riley L. Cooper practice?

Dr. Cooper practices at 11 Hospital Drive, Machias, ME 04654. Dr. Cooper's primary practice is Down East Community Hospital in Machias, Maine, part of Down East Community Hospital. Dmand AI also links Dr. Cooper to 3 medical groups.

What is Dr. Riley L. Cooper's office phone number?

The practice phone on file for Dr. Cooper is (207) 255-3356.

What is Dr. Riley L. Cooper's medical license number?

Dr. Cooper holds Maine license DO2698, one of the licenses on file in 2 states.

Which states has Dr. Riley L. Cooper been licensed in?

Dmand AI has state licenses on file for Dr. Cooper in Maine and Illinois.

Which hospitals is Dr. Riley L. Cooper affiliated with?

Dr. Cooper practices at Down East Community Hospital in Machias, Maine. Dr. Cooper is also affiliated with Central Maine Medical Center.

What medical group is Dr. Riley L. Cooper part of?

Dr. Cooper is linked to Down East Community Hospital. Dmand AI links Dr. Cooper to 3 more medical groups.

Does Dr. Riley L. Cooper accept Medicare?

Yes. CMS data shows Dr. Cooper billed Medicare for 170 services in 2023, and Dr. Cooper accepts Medicare assignment.

What is Dr. Riley L. Cooper's MIPS score?

Dr. Cooper's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.

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How many Medicare patients does Dr. Riley L. Cooper see?

CMS counts 17 Medicare patients who saw Dr. Cooper in 2024, with an average age of 70.

What services does Dr. Riley L. Cooper bill to Medicare?

In 2023, Dr. Cooper's most billed Medicare services were emergency department visit (99284), emergency department visit (99285) and emergency department visit (99283).

What drugs does Dr. Riley L. Cooper prescribe most?

In 2024 Medicare Part D data, Dr. Cooper's most prescribed drugs by claims were Amoxicillin-Clavulanate Potass, Azithromycin and Cyclobenzaprine HCl.

Has Dr. Riley L. Cooper received payments from drug or device companies?

CMS Open Payments shows $99 in general payments to Dr. Cooper from 3 companies from 2016 to 2017. The largest total came from Janssen Pharmaceuticals, Inc.

How long has Dr. Riley L. Cooper been practicing?

Dr. Cooper graduated from medical school in 2013, 13 years ago.

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