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Dr. Reynold Michael Karr Jr., MD
NPI1437259835
- Medicare services, 2024
- 71
- Medicare patients, 2024
- 25
- Part D claims, 2024
- 134
- Publications
- 2
- MIPS score, 2024
- 94
- Practice address
- 1959 NE Pacific St Box 356151, Seattle, WA 98195
- Practice phone
- Call (206) 598-3300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Karr's professional email, personal email and mobile number
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Dr. Reynold Michael Karr Jr. is a rheumatologist in Seattle, Washington
Dr. Karr practices at UW Medical Center - Montlake in Seattle, Washington, part of University of Washington.
Dr. Karr's NPI, 1437259835, was assigned on September 25, 2006. Dr. Karr graduated from University of Maryland School of Medicine in 1969. Dr. Karr holds Washington license MD00017390.
NPI and contact details
- NPI
- 1437259835NPI Registry (opens in a new tab)
- NPI enumeration date
- September 25, 2006
- NPI status
- Active
- Practice phone
- (206) 598-3300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 83
- Medical school graduation
- 1969
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Reynold Michael Karr Jr. practices at UW Medical Center - Montlake in Seattle, Washington
Dr. Karr's primary practice is UW Medical Center - Montlake, at 1959 NE Pacific St Box 356151, Seattle, WA 98195 in King County. The practice phone is (206) 598-3300.
- UW Medical Center - Montlake1959 NE Pacific St Box 356151, Seattle, WA 98195 · King CountyPhone(206) 598-3300
Source: Dmand AI Affiliation Data
Dr. Reynold Michael Karr Jr. is affiliated with 3 sites of care
Dr. Karr's primary practice is UW Medical Center - Montlake in Seattle, Washington, part of University of Washington. Dmand AI also links Dr. Karr to 1 hospital and 1 hospital outpatient department, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Reynold Michael Karr Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Karr practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UW Medical Center - Montlake | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Reynold Michael Karr Jr. is one of 156 rheumatologists in Washington
Rheumatology is Dr. Karr's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Karr is licensed in Washington.
Specialties and state licenses
- Rheumatology, WashingtonPrimary
Rheumatologists near Dr. Karr
Counts of rheumatologists with a Dmand AI profile, by place and practice. Each opens the list.
156rheumatologists in Washington62rheumatologists in Seattle18rheumatologists at UW Medical Center - Montlake
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Reynold Michael Karr Jr. billed Medicare for 71 services in 2024
CMS data shows 71 Medicare services from Dr. Karr across 3 procedure codes in 2024, for 25 Medicare patients. Medicare paid $4,165 for them. Every service was in an office.
Medicare services, 202471
Medicare patients25
Paid by Medicare$4,165
Procedure codes3
Dr. Karr's Medicare services by type, 2017 to 2024
- 2017
- 2024
- Other services
- 2017: 02024: 47
- Office and hospital visits
- 2017: 122024: 24100%
Dr. Karr compared with the Washington median for rheumatologists, 2024
- Dr. Karr
- Washington median
- Medicare services
- 71vs 76391% below
- Medicare patients
- 25vs 20488% below
- Part D claims
- 41vs 92896% below
Medians across 159 rheumatologists in Washington with Dmand AI profiles that report each measure.
Dr. Karr'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.
Need commercial claims for Dr. Karr?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Karr and other rheumatologists in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Reynold Michael Karr Jr. treated 25 Medicare patients in 2024, average age 69
CMS counts 25 Medicare patients who saw Dr. Karr in 2024. 68% of them have arthritis, and 60% have high blood pressure. Their average risk score is 1.12, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Karr's median patient age at 55, with 60% women.
Medicare patients, 202425
Average age69
Average risk score1.12
Chronic conditions among Dr. Karr's Medicare patients, 2024
- Arthritis68%
- High blood pressure60%
- High cholesterol56%
Share of Medicare patients with each condition. A patient can have several.
Dr. Karr's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women60%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Reynold Michael Karr Jr. wrote 134 Medicare Part D claims in 2024
In 2024, Dr. Karr wrote 134 Medicare Part D claims for 23 patients. 64% of them were for generic drugs. CMS names the drug for 41 of them, across 3 drugs with 11 or more claims each, at $136,510 in total drug cost. In 2023, CMS named 63 claims across 3 drugs.
Part D claims, 2024134
Drugs named by CMS3
Total drug cost$136,510
Part D patients23
Dr. Karr's Part D claims by kind of drug, 2024
- Generic86 claims64%
- Brand-name and other48 claims36%
Dr. Karr'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 632024: 4135%
Drugs named by CMS: 3 in 2024, 3 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
Dr. Reynold Michael Karr Jr. 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 Dr. Karr for performance year 2024, reported through an alternative payment model (APM).
Dr. Karr's MIPS scores, performance year 2024
- 94of 100Final score
- 74.6of 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. Reynold Michael Karr Jr. has 2 publications on record
Dmand AI links 2 papers to Dr. Karr in 2017. 2017 was the busiest year, with 2.
Papers2
Recent publications by Dr. Karr
Arthritis Rheumatol
Lupus Erythematosus, SystemicNucleotides, CyclicNucleotidyltransferases
See who Dr. Karr researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Karr works with, so you can find a warm path to the right rheumatologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Reynold Michael Karr Jr. received $2,386 in industry payments from 2016 to 2025
CMS Open Payments shows 38 general payments to Dr. Karr from 12 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Celgene Corporation paid the most, $810.
General payments to Dr. Karr by program year, 2016 to 2025
Companies that paid Dr. Karr the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Reynold Michael Karr Jr. graduated from University of Maryland School of Medicine
Dr. Karr graduated from University of Maryland School of Medicine in 1969.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Reynold Michael Karr Jr.'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 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)Medicare Part D Prescribers - by Provider (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. Reynold Michael Karr Jr.
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. Reynold Michael Karr Jr.'s NPI number?
Dr. Reynold Michael Karr Jr.'s NPI number is 1437259835. It was assigned on September 25, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Reynold Michael Karr Jr.?
Dr. Reynold Michael Karr Jr. is a rheumatologist in Seattle, Washington. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).
Where does Dr. Reynold Michael Karr Jr. practice?
Dr. Karr practices at 1959 NE Pacific St Box 356151, Seattle, WA 98195. Dr. Karr's primary practice is UW Medical Center - Montlake in Seattle, Washington, part of University of Washington. Dmand AI also links Dr. Karr to 1 hospital and 1 hospital outpatient department.
What is Dr. Reynold Michael Karr Jr.'s office phone number?
The practice phone on file for Dr. Karr is (206) 598-3300.
What is Dr. Reynold Michael Karr Jr.'s medical license number?
Dr. Karr holds Washington license MD00017390.
Which hospitals is Dr. Reynold Michael Karr Jr. affiliated with?
Dr. Karr practices at UW Medical Center - Montlake in Seattle, Washington. Dmand AI links Dr. Karr to 1 more hospital.
Does Dr. Reynold Michael Karr Jr. accept Medicare?
Yes. CMS data shows Dr. Karr billed Medicare for 71 services in 2024.
What is Dr. Reynold Michael Karr Jr.'s MIPS score?
Dr. Karr's MIPS final score for performance year 2024 is 94 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Reynold Michael Karr Jr. see?
CMS counts 25 Medicare patients who saw Dr. Karr in 2024, with an average age of 69.
What services does Dr. Reynold Michael Karr Jr. bill to Medicare?
In 2024, Dr. Karr's most billed Medicare services were medicare service (G2212), office visit, established patient (99215) and medicare service (G2211).
Show 5 more questionsShow fewer questions
Where did Dr. Reynold Michael Karr Jr. go to medical school?
Dr. Karr graduated from University of Maryland School of Medicine in 1969.
What drugs does Dr. Reynold Michael Karr Jr. prescribe most?
In 2024 Medicare Part D data, Dr. Karr's most prescribed drugs by claims were Amitriptyline HCl, Dupixent Pen and Enbrel Sureclick.
Has Dr. Reynold Michael Karr Jr. received payments from drug or device companies?
CMS Open Payments shows $2,386 in general payments to Dr. Karr from 12 companies from 2016 to 2025. The largest total came from Celgene Corporation.
How long has Dr. Reynold Michael Karr Jr. been practicing?
Dr. Karr graduated from medical school in 1969, 57 years ago.
Does Dr. Reynold Michael Karr Jr. do research?
Dmand AI links 2 publications to Dr. Karr.
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