Dr. Richard R. Riker, MD
- Medicare services, 2024
- 486
- Medicare patients, 2024
- 174
- Part D claims, 2016
- 46
- Publications
- 73
- MIPS score, 2024
- 98
- Practice address
- 22 Bramhall St, Portland, ME 04102
- Practice phone
- Call (207) 662-0111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Maine Medical Center
Portland, Maine
Find Dr. Riker'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. Richard R. Riker is a pulmonologist in Portland, Maine
Dr. Riker practices at Maine Medical Center in Portland, Maine.
Dr. Riker's NPI, 1972615235, was assigned on August 31, 2006. Dr. Riker graduated from University of Vermont College of Medicine in 1984. Dr. Riker holds Maine license 012669.
- NPI
- 1972615235NPI Registry (opens in a new tab)
- NPI enumeration date
- August 31, 2006
- NPI status
- Active
- Practice phone
- (207) 662-0111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 68
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Richard R. Riker practices at Maine Medical Center in Portland, Maine
Dr. Riker's primary practice is Maine Medical Center, at 22 Bramhall St, Portland, ME 04102 in Cumberland County. The practice phone is (207) 662-0111.
- Maine Medical Center22 Bramhall St, Portland, ME 04102 · Cumberland CountyPhone(207) 662-0111
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Richard R. Riker is affiliated with 2 sites of care and 1 medical group
Dr. Riker's primary practice is Maine Medical Center in Portland, Maine. The medical group on file is Chest Medicine Associates. Dmand AI also links Dr. Riker to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Richard R. Riker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Riker practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Maine 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. Richard R. Riker is one of 80 pulmonologists in Maine
Pulmonary disease is Dr. Riker's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dr. Riker is licensed in Maine.
Specialties and state licenses
- Pulmonary disease, MainePrimary
Pulmonologists near Dr. Riker
Counts of pulmonologists 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. Richard R. Riker billed Medicare for 486 services in 2024
CMS data shows 486 Medicare services from Dr. Riker across 4 procedure codes in 2024, for 174 Medicare patients. Medicare paid $68,808 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Riker's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3202024: 48652%
Dr. Riker compared with the Maine median for pulmonologists, 2024
- Dr. Riker
- Maine median
- Medicare services
- 486vs 39722% above
- Medicare patients
- 174vs 22222% below
- Part D claims
- 46vs 46790% below
Medians across 80 pulmonologists in Maine with Dmand AI profiles that report each measure.
Dr. Riker's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Riker and other pulmonologists in Maine.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Richard R. Riker treated 174 Medicare patients in 2024, average age 72
CMS counts 174 Medicare patients who saw Dr. Riker in 2024. The largest group is 65 to 74, with 65 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 35% are also on Medicaid. Their average risk score is 2.17, 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. Riker's median patient age at 70, with 46% women.
Dr. Riker's Medicare patients by age, 2024
Dr. Riker's Medicare patients by sex, 2024
- Women8348%
- Men9152%
Chronic conditions among Dr. Riker's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Stroke or TIA68%
- Arthritis44%
- Heart failure44%
- Ischemic heart disease44%
- Atrial fibrillation39%
- Mood disorders39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Riker'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
- Women46%
- Men54%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Richard R. Riker wrote 46 Medicare Part D claims in 2016
In 2016, Dr. Riker wrote 46 Medicare Part D claims. They cover 2 drugs, with $18,652 in total drug cost.
Dr. Riker's most prescribed drugs by claims, 2016
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Richard R. Riker scored 98 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 98 out of 100 for Dr. Riker for performance year 2024, reported through an alternative payment model (APM).
Dr. Riker's MIPS scores, performance year 2024
- 98of 100Final score
- 83.3of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Richard R. Riker has 73 publications on record
Dmand AI links 73 papers to Dr. Riker, published from 2016 to 2025. 2018 was the busiest year, with 8. The most frequent topics are Intensive Care Units, Hypnotics and Sedatives and Critical Illness. Dr. Riker has published most often in Crit Care Med. Dr. Riker's most frequent co-authors are David B. Seder, MD, Teresa L. May, DO and John Addison McPherson, MD.
Dr. Riker's papers by year, 2016 to 2025
Topics Dr. Riker writes about most
- Intensive Care Units
- Hypnotics and Sedatives
- Critical Illness
- Heart Arrest
- Hypothermia, Induced
- Out-of-Hospital Cardiac Arrest
- Cardiopulmonary Resuscitation
- Critical Care
Dr. Riker's most frequent co-authors
- David B. Seder, MD45 shared papers
- Teresa L. May, DO40 shared papers
- John Addison McPherson, MD8 shared papers
Recent publications by Dr. Riker
See who Dr. Riker researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Riker works with, so you can find a warm path to the right pulmonologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Richard R. Riker received $27,517 in industry payments from 2016 to 2022
CMS Open Payments shows 10 general payments to Dr. Riker from 3 drug and device companies from 2016 to 2022. Consulting fees make up the largest share, 97% of the total. GE Healthcare paid the most, $19,575.
General payments to Dr. Riker by program year, 2016 to 2022
General payments to Dr. Riker by kind, 2016 to 2022
- Consulting fees$26,60697%
- Travel and lodging$7363%
- Food and beverage$1751%
Companies that paid Dr. Riker the most, 2016 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Richard R. Riker graduated from University of Vermont College of Medicine
Dr. Riker graduated from University of Vermont College of Medicine in 1984.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Richard R. Riker'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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 and Drug (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Richard R. Riker
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. Richard R. Riker's NPI number?
Dr. Richard R. Riker's NPI number is 1972615235. It was assigned on August 31, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Richard R. Riker?
Dr. Richard R. Riker is a pulmonologist in Portland, Maine. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Richard R. Riker practice?
Dr. Riker practices at 22 Bramhall St, Portland, ME 04102. Dr. Riker's primary practice is Maine Medical Center in Portland, Maine. Dmand AI also links Dr. Riker to 1 group practice or clinic.
What is Dr. Richard R. Riker's office phone number?
The practice phone on file for Dr. Riker is (207) 662-0111.
What is Dr. Richard R. Riker's medical license number?
Dr. Riker holds Maine license 012669.
What medical group is Dr. Richard R. Riker part of?
Dr. Riker is linked to Chest Medicine Associates.
Does Dr. Richard R. Riker accept Medicare?
Yes. CMS data shows Dr. Riker billed Medicare for 486 services in 2024.
What is Dr. Richard R. Riker's MIPS score?
Dr. Riker's MIPS final score for performance year 2024 is 98 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Richard R. Riker see?
CMS counts 174 Medicare patients who saw Dr. Riker in 2024, with an average age of 72.
What services does Dr. Richard R. Riker bill to Medicare?
In 2024, Dr. Riker's most billed Medicare services were critical care (99291), hospital inpatient care (99233) and hospital inpatient care (99238).
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Where did Dr. Richard R. Riker go to medical school?
Dr. Riker graduated from University of Vermont College of Medicine in 1984.
What drugs does Dr. Richard R. Riker prescribe most?
In 2016 Medicare Part D data, Dr. Riker's most prescribed drugs by claims were Spiriva and Advair Diskus.
Has Dr. Richard R. Riker received payments from drug or device companies?
CMS Open Payments shows $27,517 in general payments to Dr. Riker from 3 companies from 2016 to 2022. The largest total came from GE Healthcare.
How long has Dr. Richard R. Riker been practicing?
Dr. Riker graduated from medical school in 1984, 42 years ago.
Does Dr. Richard R. Riker do research?
Dmand AI links 73 publications to Dr. Riker, published from 2016 to 2025.
Who does Dr. Richard R. Riker publish with?
Dr. Riker's most frequent co-authors are David B. Seder, MD (45 shared papers), Teresa L. May, DO (40 shared papers) and John Addison McPherson, MD (8 shared papers).
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