J Community Hosp Intern Med Perspect
Dr. Richard James Keirn, MD
NPI1801937644
- Medicare services, 2020
- 253
- Part D claims, 2021
- 113
- Publications
- 2
- Industry payments
- $3,060
- State license
- 1
- Practice address
- 3601 W 13 Mile Rd, Royal Oak, MI 48073
- Practice phone
- Call (248) 628-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
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Dr. Richard James Keirn is an internist in Royal Oak, Michigan
Dr. Keirn practices in Royal Oak, Michigan.
Dr. Keirn's NPI, 1801937644, was assigned on February 12, 2007. Dr. Keirn holds Michigan license 4301051971.
NPI and contact details
- NPI
- 1801937644NPI Registry (opens in a new tab)
- NPI enumeration date
- February 12, 2007
- NPI status
- Active
- Practice phone
- (248) 628-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Richard James Keirn's practice address is in Royal Oak, Michigan
Dr. Keirn's practice address in the NPI Registry is 3601 W 13 Mile Rd, Royal Oak, MI 48073, in Oakland County. The practice phone is (248) 628-3000.
- NPI Registry address3601 W 13 Mile Rd, Royal Oak, MI 48073 · Oakland CountyPhone(248) 628-3000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Richard James Keirn's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Keirn practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Keirn's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Richard James Keirn is one of 4,804 internists in Michigan
Internal medicine is Dr. Keirn's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Keirn is licensed in Michigan.
Specialties and state licenses
- Internal medicine, MichiganPrimary
Internists near Dr. Keirn
Counts of internists 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 James Keirn billed Medicare for 253 services in 2020
CMS data shows 253 Medicare services from Dr. Keirn across 3 procedure codes in 2020. Medicare paid $9,668 for them. Every service was in an office.
Medicare services, 2020253
Paid by Medicare$9,668
Procedure codes3
Dr. Keirn's Medicare services by type, 2019 to 2020
- 2019
- 2020
- Office and hospital visits
- 2019: 6922020: 25363%
- Other services
- 2019: 142020: 0100%
Dr. Keirn compared with the Michigan median for internists, 2020
- Dr. Keirn
- Michigan median
- Medicare services
- 253vs 42340% below
- Part D claims
- 113vs 31464% below
Medians across 4,524 internists in Michigan with Dmand AI profiles that report each measure.
Dr. Keirn's most billed Medicare procedure codes, 2020
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. Keirn?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Keirn and other internists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Richard James Keirn's patients have a median age of 60
Across all payers, Dmand AI patient panel data puts Dr. Keirn's median patient age at 60, with 50% women.
Dr. Keirn's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Richard James Keirn wrote 113 Medicare Part D claims in 2021
In 2021, Dr. Keirn wrote 113 Medicare Part D claims. They cover 6 drugs, with $1,174 in total drug cost. In 2020, CMS named 2,848 claims across 73 drugs.
Part D claims, 2021113
Drugs named by CMS6
Total drug cost$1,174
Dr. Keirn's most prescribed drugs by claims, 2021
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, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 2,8482021: 11396%
Drugs named by CMS: 6 in 2021, 73 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Richard James Keirn has 2 publications on record
Dmand AI links 2 papers to Dr. Keirn in 2020. 2020 was the busiest year, with 2. Dr. Keirn's most frequent co-authors are John T. Berquist, DO, Victor M. Hunyadi, DO and Bryan Mitchell Zweig, MD.
Papers2
Dr. Keirn's most frequent co-authors
- John T. Berquist, DO1 shared paper
- Victor M. Hunyadi, DO1 shared paper
- Bryan Mitchell Zweig, MD1 shared paper
Recent publications by Dr. Keirn
See who Dr. Keirn researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Keirn works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Richard James Keirn received $3,060 in industry payments from 2016 to 2020
CMS Open Payments shows 137 general payments to Dr. Keirn from 21 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 98% of the total. Pfizer Inc. paid the most, $526.
General payments to Dr. Keirn by program year, 2016 to 2020
General payments to Dr. Keirn by kind, 2016 to 2020
$3.1Kin total
- Food and beverage$3,00198%
- Education$592%
Companies that paid Dr. Keirn the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Richard James Keirn'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 |
| 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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) |
| 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 James Keirn
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 James Keirn's NPI number?
Dr. Richard James Keirn's NPI number is 1801937644. It was assigned on February 12, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Richard James Keirn?
Dr. Richard James Keirn is an internist in Royal Oak, Michigan. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Richard James Keirn practice?
Dr. Keirn practices at 3601 W 13 Mile Rd, Royal Oak, MI 48073.
What is Dr. Richard James Keirn's office phone number?
The practice phone on file for Dr. Keirn is (248) 628-3000.
What is Dr. Richard James Keirn's medical license number?
Dr. Keirn holds Michigan license 4301051971.
Does Dr. Richard James Keirn accept Medicare?
Yes. CMS data shows Dr. Keirn billed Medicare for 253 services in 2020.
What services does Dr. Richard James Keirn bill to Medicare?
In 2020, Dr. Keirn's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and care management and other visits (99441).
What drugs does Dr. Richard James Keirn prescribe most?
In 2021 Medicare Part D data, Dr. Keirn's most prescribed drugs by claims were Omeprazole, Atorvastatin Calcium and Clopidogrel.
Has Dr. Richard James Keirn received payments from drug or device companies?
CMS Open Payments shows $3,060 in general payments to Dr. Keirn from 21 companies from 2016 to 2020. The largest total came from Pfizer Inc.
How long has Dr. Richard James Keirn been practicing?
Dr. Keirn's NPI was assigned in 2007.
Does Dr. Richard James Keirn do research?
Dmand AI links 2 publications to Dr. Keirn.
Who does Dr. Richard James Keirn publish with?
Dr. Keirn's most frequent co-authors are John T. Berquist, DO (1 shared paper), Victor M. Hunyadi, DO (1 shared paper) and Bryan Mitchell Zweig, MD (1 shared paper).
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