Dr. James T. Johnson, DO
- Part D claims, 2024
- 432
- Hospital affiliations
- 2
- Industry payments
- $120
- Medical group
- 1
- State license
- 1
- Practice address
- 3535 Olentangy River Rd, Columbus, OH 43214
- Practice phone
- Call (614) 566-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Johnson's professional email, personal email and mobile number
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Dr. James T. Johnson is an internist in Columbus, Ohio
Dr. Johnson practices at OhioHealth Riverside Methodist Hospital in Columbus, Ohio, part of OhioHealth.
Dr. Johnson's NPI, 1811647902, was assigned on March 24, 2022. Dr. Johnson holds Ohio license 34.017891.
- NPI
- 1811647902NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3870971203
- NPI enumeration date
- March 24, 2022
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (614) 566-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 30
- Medical school graduation
- 2022
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. James T. Johnson practices at OhioHealth Riverside Methodist Hospital in Columbus, Ohio
Dr. Johnson's primary practice is OhioHealth Riverside Methodist Hospital, at 3535 Olentangy River Rd, Columbus, OH 43214 in Franklin County. The practice phone is (614) 566-5000.
- OhioHealth Riverside Methodist Hospital3535 Olentangy River Rd, Columbus, OH 43214 · Franklin CountyPhone(614) 566-5000
Source: Dmand AI Affiliation Data
Dr. James T. Johnson is affiliated with 4 sites of care and 1 medical group
Dr. Johnson's primary practice is OhioHealth Riverside Methodist Hospital in Columbus, Ohio, part of OhioHealth. Dr. Johnson is also affiliated with OhioHealth O'Bleness Hospital. The medical group on file is MedOne Hospital Physicians. Dmand AI also links Dr. Johnson to 1 more group practice or clinic 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. James T. Johnson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnson practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| OhioHealth Riverside Methodist Hospital | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. James T. Johnson is one of 4,708 internists in Ohio
Internal medicine is Dr. Johnson's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Johnson is licensed in Ohio.
Specialties and state licenses
- Internal medicine, OhioPrimary
Internists near Dr. Johnson
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. James T. Johnson's patients have a median age of 66
Across all payers, Dmand AI patient panel data puts Dr. Johnson's median patient age at 66, with 51% women.
Dr. Johnson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women51%
- Men48%
Source: Dmand AI Patient Panel Data
Dr. James T. Johnson wrote 432 Medicare Part D claims in 2024
In 2024, Dr. Johnson wrote 432 Medicare Part D claims for 104 patients. 74% of them were for generic drugs. CMS names the drug for 174 of them, across 9 drugs with 11 or more claims each, at $34,405 in total drug cost.
Dr. Johnson's Part D claims by kind of drug, 2024
- Generic318 claims74%
- Brand-name and other114 claims26%
Dr. Johnson'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.
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. James T. Johnson takes part in Medicare
Dr. Johnson 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. James T. Johnson received $120 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Johnson from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Madrigal Pharmaceuticals paid the most, $120.
Companies that paid Dr. Johnson the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. James T. Johnson'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) |
| 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. James T. Johnson
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. James T. Johnson's NPI number?
Dr. James T. Johnson's NPI number is 1811647902. It was assigned on March 24, 2022, and it is active in the NPI Registry.
What kind of doctor is Dr. James T. Johnson?
Dr. James T. Johnson is an internist in Columbus, Ohio. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. James T. Johnson practice?
Dr. Johnson practices at 3535 Olentangy River Rd, Columbus, OH 43214. Dr. Johnson's primary practice is OhioHealth Riverside Methodist Hospital in Columbus, Ohio, part of OhioHealth. Dmand AI also links Dr. Johnson to 1 group practice or clinic and 1 hospital outpatient department.
What is Dr. James T. Johnson's office phone number?
The practice phone on file for Dr. Johnson is (614) 566-5000.
What is Dr. James T. Johnson's medical license number?
Dr. Johnson holds Ohio license 34.017891.
Which hospitals is Dr. James T. Johnson affiliated with?
Dr. Johnson practices at OhioHealth Riverside Methodist Hospital in Columbus, Ohio. Dr. Johnson is also affiliated with OhioHealth O'Bleness Hospital.
What medical group is Dr. James T. Johnson part of?
Dr. Johnson is linked to MedOne Hospital Physicians.
Does Dr. James T. Johnson accept Medicare?
Yes. CMS lists Dr. Johnson as accepting Medicare assignment.
What drugs does Dr. James T. Johnson prescribe most?
In 2024 Medicare Part D data, Dr. Johnson's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Gabapentin.
Has Dr. James T. Johnson received payments from drug or device companies?
CMS Open Payments shows $120 in general payments to Dr. Johnson from 1 company from 2025 to 2025. The largest total came from Madrigal Pharmaceuticals.
How long has Dr. James T. Johnson been practicing?
Dr. Johnson graduated from medical school in 2022, 4 years ago.
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