Dr. Mark Randolph Riser, DO

  • Woonsocket, RI
  • Emergency medicine physician
NPI1457309619PAC ID4789673294
Medicare services, 2024
198
Medicare patients, 2024
197
Part D claims, 2024
210
MIPS score, 2024
99
Hospital affiliations
3
Practice address
115 Cass Avenue, Woonsocket, RI 02895
Practice phone
Call (401) 769-4100
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Landmark Medical Center

Hospital · Woonsocket, Rhode Island

See all 15 affiliations

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Dr. Mark Randolph Riser is an emergency medicine physician in Woonsocket, Rhode Island

Dr. Riser practices at Landmark Medical Center in Woonsocket, Rhode Island, part of Prime Healthcare Services.

Dr. Riser's NPI, 1457309619, was assigned on May 4, 2006. Dr. Riser graduated from Kansas City University of Med & Biosciences, College of Osteo Med in 1995. Dr. Riser holds New York license 268189-1.

NPI and contact details
Medicare PAC ID
4789673294
NPI enumeration date
May 4, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(401) 769-4100
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
57
Medical school graduation
1995

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

Dr. Mark Randolph Riser practices at Landmark Medical Center in Woonsocket, Rhode Island

Dr. Riser's primary practice is Landmark Medical Center, at 115 Cass Avenue, Woonsocket, RI 02895 in Providence County. The practice phone is (401) 769-4100.

Source: Dmand AI Affiliation Data

Dr. Mark Randolph Riser is affiliated with 4 sites of care and 11 medical groups

Dr. Riser's primary practice is Landmark Medical Center in Woonsocket, Rhode Island, part of Prime Healthcare Services. Dr. Riser is also affiliated with Aspirus Rhinelander Hospital. The medical group on file is Emergency Associates of Woonsocket. Dmand AI also links Dr. Riser to 1 more hospital, 10 medical groups and 1 rural health clinic, each named with a free account.

See all 15 affiliations for Dr. Riser

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

Dmand AI tracks the EHR system at Dr. Mark Randolph Riser's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Riser practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Landmark Medical CenterAvailable with a free account
+3 more sites and 10 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Mark Randolph Riser is one of 262 emergency medicine physicians in Rhode Island

Emergency medicine is Dr. Riser's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Riser's licenses on file in 3 states: New York, North Carolina and Rhode Island.

Specialties and state licenses

  • Emergency medicine, New YorkPrimaryLicense 268189-1 · taxonomy 207P00000X
  • North Carolina licenseLicense 9900332
  • Rhode Island licenseLicense 13867

Emergency medicine physicians near Dr. Riser

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. Mark Randolph Riser billed Medicare for 198 services in 2024

CMS data shows 198 Medicare services from Dr. Riser across 6 procedure codes in 2024, for 197 Medicare patients. Medicare paid $16,262 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024198
Medicare patients197
Paid by Medicare$16,262
Procedure codes6

Dr. Riser's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1712024: 1805%
Tests and treatments
2023: 1072024: 1883%

Dr. Riser compared with the Rhode Island median for emergency medicine physicians, 2024

  • Dr. Riser
  • Rhode Island median
Medicare services
198vs 202Close to median
Medicare patients
197vs 23215% below
Part D claims
90vs 243.8 times

Medians across 242 emergency medicine physicians in Rhode Island with Dmand AI profiles that report each measure.

Dr. Riser'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.

See all procedures by Dr. Riser

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

Dr. Mark Randolph Riser treated 197 Medicare patients in 2024, average age 75

CMS counts 197 Medicare patients who saw Dr. Riser in 2024. The largest group is 65 to 74, with 74 patients. 75% of them have high cholesterol, and 74% have high blood pressure. 19% are also on Medicaid. Their average risk score is 1.47, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Riser's median patient age at 51, with 58% women.

Medicare patients, 2024197
Average age75
Average risk score1.47
Also on Medicaid19%

Dr. Riser's Medicare patients by age, 2024

Dr. Riser's Medicare patients by sex, 2024

  • Women10553%
  • Men9247%

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

  1. High cholesterol75%
  2. High blood pressure74%
  3. Arthritis51%
  4. Ischemic heart disease40%
  5. Chronic kidney disease31%
  6. Heart failure31%
  7. Diabetes29%
  8. Mood disorders29%

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

Dr. Riser's patients across all payers

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

Patient panel by age, all payers

Median age 51

Patient panel by sex, all payers

  • Women58%
  • Men42%

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

Dr. Mark Randolph Riser wrote 210 Medicare Part D claims in 2024

In 2024, Dr. Riser wrote 210 Medicare Part D claims for 142 patients. 93% of them were for generic drugs. CMS names the drug for 90 of them, across 4 drugs with 11 or more claims each, at $312 in total drug cost. In 2023, CMS named 66 claims across 4 drugs.

Part D claims, 2024210
Drugs named by CMS4
Total drug cost$312
Part D patients142

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

  • Generic196 claims93%
  • Brand-name14 claims7%

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

  • Opioids15%31 of 210 claims
  • Antibiotics41%86 of 210 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: 662024: 9036%

Drugs named by CMS: 4 in 2024, 4 in 2023.

See all prescribing by Dr. Riser

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. Mark Randolph Riser scored 99 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 99 out of 100 for Dr. Riser for performance year 2024, reported as part of a group. Dr. Riser accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Riser's MIPS scores, performance year 2024

  • 99of 100Final score
  • 90.1of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

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. Mark Randolph Riser received $156 in industry payments from 2019 to 2023

CMS Open Payments shows 11 general payments to Dr. Riser from 6 drug and device companies from 2019 to 2023. Food and beverage make up the largest share, 100% of the total. CSL Behring paid the most, $86.

General payments to Dr. Riser by program year, 2019 to 2023

Companies that paid Dr. Riser the most, 2019 to 2023

Share is of all general payments to this clinician.

See all payments to Dr. Riser

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

Dr. Mark Randolph Riser graduated from Kansas City University of Med & Biosciences, College of Osteo Med

Dr. Riser graduated from Kansas City University of Med & Biosciences, College of Osteo Med in 1995.

  1. Medical schoolKansas City University of Med & Biosciences, College of Osteo Med

Source: Dmand AI Professional Profile Data

Sources for Dr. Mark Randolph Riser'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)
Training, board certification and membershipsDmand AI Professional Profile Data
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. Mark Randolph Riser

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. Mark Randolph Riser's NPI number?

Dr. Mark Randolph Riser's NPI number is 1457309619. It was assigned on May 4, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Mark Randolph Riser?

Dr. Mark Randolph Riser is an emergency medicine physician in Woonsocket, Rhode Island. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).

Where does Dr. Mark Randolph Riser practice?

Dr. Riser practices at 115 Cass Avenue, Woonsocket, RI 02895. Dr. Riser's primary practice is Landmark Medical Center in Woonsocket, Rhode Island, part of Prime Healthcare Services. Dmand AI also links Dr. Riser to 1 hospital, 10 medical groups and 1 rural health clinic.

What is Dr. Mark Randolph Riser's office phone number?

The practice phone on file for Dr. Riser is (401) 769-4100.

What is Dr. Mark Randolph Riser's medical license number?

Dr. Riser holds New York license 268189-1, one of the licenses on file in 3 states.

Which states has Dr. Mark Randolph Riser been licensed in?

Dmand AI has state licenses on file for Dr. Riser in New York, North Carolina and Rhode Island.

Which hospitals is Dr. Mark Randolph Riser affiliated with?

Dr. Riser practices at Landmark Medical Center in Woonsocket, Rhode Island. Dr. Riser is also affiliated with Aspirus Rhinelander Hospital. Dmand AI links Dr. Riser to 1 more hospital.

What medical group is Dr. Mark Randolph Riser part of?

Dr. Riser is linked to Emergency Associates of Woonsocket. Dmand AI links Dr. Riser to 10 more medical groups.

Does Dr. Mark Randolph Riser accept Medicare?

Yes. CMS data shows Dr. Riser billed Medicare for 198 services in 2024, and Dr. Riser accepts Medicare assignment.

What is Dr. Mark Randolph Riser's MIPS score?

Dr. Riser's MIPS final score for performance year 2024 is 99 out of 100, reported as part of a group.

Show 6 more questionsShow fewer questions

How many Medicare patients does Dr. Mark Randolph Riser see?

CMS counts 197 Medicare patients who saw Dr. Riser in 2024, with an average age of 75.

What services does Dr. Mark Randolph Riser bill to Medicare?

In 2024, Dr. Riser's most billed Medicare services were emergency department visit (99284), emergency department visit (99285) and emergency department visit (99283).

Where did Dr. Mark Randolph Riser go to medical school?

Dr. Riser graduated from Kansas City University of Med & Biosciences, College of Osteo Med in 1995.

What drugs does Dr. Mark Randolph Riser prescribe most?

In 2024 Medicare Part D data, Dr. Riser's most prescribed drugs by claims were Cephalexin, Prednisone and Tramadol HCl.

Has Dr. Mark Randolph Riser received payments from drug or device companies?

CMS Open Payments shows $156 in general payments to Dr. Riser from 6 companies from 2019 to 2023. The largest total came from CSL Behring.

How long has Dr. Mark Randolph Riser been practicing?

Dr. Riser graduated from medical school in 1995, 31 years ago.

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