Dr. Jeffrey Karson, MD
- Part D claims, 2024
- 85
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2021
- Practice address
- 100 Michigan St NE, Grand Rapids, MI 49503
- Practice phone
- Call (616) 391-1774
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Karson'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. Jeffrey Karson is an internist in Grand Rapids, Michigan
Dr. Karson practices at Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan, part of Corewell Health.
Dr. Karson's NPI, 1205404597, was assigned on June 14, 2021. Dr. Karson holds Michigan license 4351048542.
- NPI
- 1205404597NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9830592575
- NPI enumeration date
- June 14, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (616) 391-1774
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jeffrey Karson practices at Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan
Dr. Karson's primary practice is Corewell Health Grand Rapids Hospitals - Butterworth, at 100 Michigan St NE, Grand Rapids, MI 49503 in Kent County. The practice phone is (616) 391-1774.
- Corewell Health Grand Rapids Hospitals - Butterworth100 Michigan St NE, Grand Rapids, MI 49503 · Kent CountyPhone(616) 391-1774
Source: Dmand AI Affiliation Data
Dr. Jeffrey Karson is affiliated with 2 sites of care and 1 medical group
Dr. Karson's primary practice is Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan, part of Corewell Health. The medical group on file is Corewell Health Medical Group West. Dmand AI also links Dr. Karson to 1 more hospice, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jeffrey Karson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Karson practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Corewell Health Grand Rapids Hospitals - Butterworth | 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. Jeffrey Karson is one of 4,804 internists in Michigan
Internal medicine is Dr. Karson's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Karson is licensed in Michigan.
Specialties and state licenses
- Internal medicine, MichiganPrimary
Internists near Dr. Karson
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. Jeffrey Karson's patients have a median age of 69
Across all payers, Dmand AI patient panel data puts Dr. Karson's median patient age at 69, with 49% women.
Dr. Karson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women49%
- Men51%
Source: Dmand AI Patient Panel Data
Dr. Jeffrey Karson wrote 85 Medicare Part D claims in 2024
In 2024, Dr. Karson wrote 85 Medicare Part D claims for 29 patients. 95% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $1,166 in total drug cost.
Dr. Karson's Part D claims by kind of drug, 2024
- Generic81 claims95%
- Brand-name and other4 claims5%
Dr. Karson'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. Karson's Part D claims, 2024
- Opioids42%36 of 85 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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. Jeffrey Karson takes part in Medicare
Dr. Karson 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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Sources for Dr. Jeffrey Karson'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) |
| 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. Jeffrey Karson
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. Jeffrey Karson's NPI number?
Dr. Jeffrey Karson's NPI number is 1205404597. It was assigned on June 14, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Jeffrey Karson?
Dr. Jeffrey Karson is an internist in Grand Rapids, Michigan. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Jeffrey Karson practice?
Dr. Karson practices at 100 Michigan St NE, Grand Rapids, MI 49503. Dr. Karson's primary practice is Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan, part of Corewell Health. Dmand AI also links Dr. Karson to 1 hospice.
What is Dr. Jeffrey Karson's office phone number?
The practice phone on file for Dr. Karson is (616) 391-1774.
What is Dr. Jeffrey Karson's medical license number?
Dr. Karson holds Michigan license 4351048542.
Which hospitals is Dr. Jeffrey Karson affiliated with?
Dr. Karson practices at Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan.
What medical group is Dr. Jeffrey Karson part of?
Dr. Karson is linked to Corewell Health Medical Group West.
Does Dr. Jeffrey Karson accept Medicare?
Yes. CMS lists Dr. Karson as accepting Medicare assignment.
What drugs does Dr. Jeffrey Karson prescribe most?
In 2024 Medicare Part D data, Dr. Karson's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
How long has Dr. Jeffrey Karson been practicing?
Dr. Karson graduated from medical school in 2020, 6 years ago.
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