Dr. Kathryn K. Riordan, MD
- Part D claims, 2024
- 1,562
- Hospital affiliations
- 2
- Industry payments
- $19
- Medical group
- 1
- Insurance carriers
- 17
- Practice address
- 49725 County 83, Staples, MN 56479
- Practice phone
- Call (218) 894-1033
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Lakewood Clinic - Staples Clinic
Rural Health Clinic - Hospital-Owned · Staples, Minnesota
Find Dr. Riordan'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. Kathryn K. Riordan is a rheumatologist in Staples, Minnesota
Dr. Riordan practices at Lakewood Clinic - Staples Clinic in Staples, Minnesota.
Dr. Riordan's NPI, 1669453726, was assigned on November 7, 2005. Dr. Riordan graduated from Uniformed Services University, F. Edward Hebert School of Medicine in 1983. Dr. Riordan holds Minnesota license 39593.
- NPI
- 1669453726NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5597808790
- NPI enumeration date
- November 7, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (218) 894-1033
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Kathryn K. Riordan practices at Lakewood Clinic - Staples Clinic in Staples, Minnesota
Dr. Riordan's primary practice is Lakewood Clinic - Staples Clinic, at 49725 County 83, Staples, MN 56479. The practice phone is (218) 894-1033.
- Lakewood Clinic - Staples Clinic49725 County 83, Staples, MN 56479Phone(218) 894-1033
Source: Dmand AI Affiliation Data
Dr. Kathryn K. Riordan is affiliated with 3 sites of care and 1 medical group
Dr. Riordan's primary practice is Lakewood Clinic - Staples Clinic in Staples, Minnesota. Dr. Riordan is also affiliated with Lakewood Health System. The medical group on file is Lakewood Health System. Dmand AI also links Dr. Riordan to 1 more hospital, named with a free account. Dr. Riordan's employer is on file too: a rural health clinic (rhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Kathryn K. Riordan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Riordan practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lakewood Clinic - Staples Clinic | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Kathryn K. Riordan is one of 136 rheumatologists in Minnesota
Rheumatology is Dr. Riordan's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Riordan is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Riordan's licenses on file in 3 states: Minnesota, Washington and Maryland.
Specialties and state licenses
- Rheumatology, MinnesotaPrimary
- Washington license
- Maryland license
Clinical focus
Dmand AI lists arteritis, arthritis, chronic obstructive pulmonary disease (COPD), gout, joint arthropathy, lower back pain, lupus and muscle pain, fibromyalgia, and limb pain among the conditions Dr. Riordan treats.
Rheumatologists near Dr. Riordan
Counts of rheumatologists 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. Kathryn K. Riordan's patients have a median age of 67
Across all payers, Dmand AI patient panel data puts Dr. Riordan's median patient age at 67, with 80% women.
Dr. Riordan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women80%
- Men20%
Source: Dmand AI Patient Panel Data
Dr. Kathryn K. Riordan wrote 1,562 Medicare Part D claims in 2024
In 2024, Dr. Riordan wrote 1,562 Medicare Part D claims for 268 patients. 79% of them were for generic drugs. CMS names the drug for 1,323 of them, across 34 drugs with 11 or more claims each, at $1,192,294 in total drug cost. In 2023, CMS named 700 claims across 22 drugs.
Dr. Riordan's Part D claims by kind of drug, 2024
- Generic1,241 claims79%
- Brand-name and other321 claims21%
Dr. Riordan'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. Riordan's Part D claims, 2024
- Opioids2%28 of 1,562 claims
- Antibiotics1%12 of 1,562 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: 7002024: 1,32389%
Drugs named by CMS: 34 in 2024, 22 in 2023.
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
How Dr. Kathryn K. Riordan takes part in Medicare
Dr. Riordan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Kathryn K. Riordan received $19 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Riordan from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Celgene Corporation paid the most, $19.
Companies that paid Dr. Riordan the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Kathryn K. Riordan has 1 award and honors on record
Dmand AI lists 1 award for Dr. Riordan.
Awards and honors for Dr. Riordan
- Undated
- ACR Fellow
Source: Dmand AI Professional Profile Data
Dr. Kathryn K. Riordan graduated from Uniformed Services University, F. Edward Hebert School of Medicine
Dr. Riordan graduated from Uniformed Services University, F. Edward Hebert School of Medicine in 1983. Dr. Riordan is a member of ACR.
- Medical school
- Board certified in internal medicine
- Board certified in rheumatology
Source: Dmand AI Professional Profile Data
Dr. Kathryn K. Riordan accepts plans from 17 insurance carriers
Dr. Riordan is in network with 17 carriers, including Blue Cross Blue Shield of Michigan, Elevance and Medica. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- Elevance
- Medica
- United Healthcare
- HCSC
- Aetna
- Blue Cross Blue Shield of Massachusetts
- Humana
- +9 more carriersWith a free account
Plan types Dr. Riordan accepts, by number of carriers
- PPO11
- HMO8
- Medicare8
- POS5
- EPO3
Source: Dmand AI Insurance Network Data
Sources for Dr. Kathryn K. Riordan'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 Data |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Kathryn K. Riordan
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. Kathryn K. Riordan's NPI number?
Dr. Kathryn K. Riordan's NPI number is 1669453726. It was assigned on November 7, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Kathryn K. Riordan?
Dr. Kathryn K. Riordan is a rheumatologist in Staples, Minnesota. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).
Where does Dr. Kathryn K. Riordan practice?
Dr. Riordan practices at 49725 County 83, Staples, MN 56479. Dr. Riordan's primary practice is Lakewood Clinic - Staples Clinic in Staples, Minnesota. Dmand AI also links Dr. Riordan to 1 hospital.
What is Dr. Kathryn K. Riordan's office phone number?
The practice phone on file for Dr. Riordan is (218) 894-1033.
What is Dr. Kathryn K. Riordan's medical license number?
Dr. Riordan holds Minnesota license 39593, one of the licenses on file in 3 states.
Which states has Dr. Kathryn K. Riordan been licensed in?
Dmand AI has state licenses on file for Dr. Riordan in Minnesota (1997 to 2026), Washington (1990 to 1997) and Maryland (1984 to 1995).
Which hospitals is Dr. Kathryn K. Riordan affiliated with?
Dr. Riordan is affiliated with Lakewood Health System. Dmand AI links Dr. Riordan to 1 more hospital.
What medical group is Dr. Kathryn K. Riordan part of?
Dr. Riordan is linked to Lakewood Health System.
Does Dr. Kathryn K. Riordan accept Medicare?
Yes. CMS lists Dr. Riordan as accepting Medicare assignment.
Is Dr. Kathryn K. Riordan board certified?
Yes. Dr. Riordan is board certified in internal medicine by the American Board of Internal Medicine.
Show 5 more questionsShow fewer questions
Where did Dr. Kathryn K. Riordan go to medical school?
Dr. Riordan graduated from Uniformed Services University, F. Edward Hebert School of Medicine in 1983.
What drugs does Dr. Kathryn K. Riordan prescribe most?
In 2024 Medicare Part D data, Dr. Riordan's most prescribed drugs by claims were Prednisone, Methotrexate and Hydroxychloroquine Sulfate.
Has Dr. Kathryn K. Riordan received payments from drug or device companies?
CMS Open Payments shows $19 in general payments to Dr. Riordan from 1 company from 2016 to 2016. The largest total came from Celgene Corporation.
How long has Dr. Kathryn K. Riordan been practicing?
Dr. Riordan graduated from medical school in 1983, 43 years ago.
What insurance does Dr. Kathryn K. Riordan accept?
Dr. Riordan is in network with 17 carriers, including Blue Cross Blue Shield of Michigan, Elevance and Medica. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.
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