Dr. Harry Keith Johnson, MD
- Medicare services, 2021
- 76
- Part D claims, 2024
- 338
- Industry payments
- $1,217
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 3024 Business Park Cir, Goodlettsville, TN 37072
- Practice phone
- Call (615) 356-3999
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Rads of America, LLC
Goodlettsville, Tennessee
Find Dr. Johnson'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. Harry Keith Johnson is a nephrologist in Goodlettsville, Tennessee
Dr. Johnson practices at Rads of America, LLC in Goodlettsville, Tennessee.
Dr. Johnson's NPI, 1104808641, was assigned on November 18, 2005. Dr. Johnson graduated from Tufts University School of Medicine in 1963. Dr. Johnson holds Tennessee license 7208.
- NPI
- 1104808641NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0143137828
- NPI enumeration date
- November 18, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (615) 356-3999
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 89
- Medical school graduation
- 1963
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Harry Keith Johnson practices at Rads of America, LLC in Goodlettsville, Tennessee
Dr. Johnson's primary practice is Rads of America, LLC, at 3024 Business Park Cir, Goodlettsville, TN 37072 in Davidson County. The practice phone is (615) 356-3999.
- Rads of America, LLC3024 Business Park Cir, Goodlettsville, TN 37072 · Davidson CountyPhone(615) 356-3999
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Harry Keith Johnson is affiliated with 2 sites of care and 1 medical group
Dr. Johnson's primary practice is Rads of America, LLC in Goodlettsville, Tennessee. The medical group on file is Dialysis Clinic, Inc. Dmand AI also links Dr. Johnson to 1 more dialysis center, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Harry Keith Johnson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnson practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Rads of America, LLC | 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. Harry Keith Johnson is one of 230 nephrologists in Tennessee
Nephrology is Dr. Johnson's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Johnson is licensed in Tennessee.
Specialties and state licenses
- Nephrology, TennesseePrimary
Nephrologists near Dr. Johnson
Counts of nephrologists 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. Harry Keith Johnson billed Medicare for 76 services in 2021
CMS data shows 76 Medicare services from Dr. Johnson across 2 procedure codes in 2021. Medicare paid $2,943 for them. Every service was in an office.
Dr. Johnson's Medicare services by type, 2019 to 2021
- 2019
- 2021
- Lab and pathology
- 2019: 422021: 397%
- Office and hospital visits
- 2019: 372021: 37No change
- Surgery
- 2019: 372021: 0100%
Dr. Johnson compared with the Tennessee median for nephrologists, 2021
- Dr. Johnson
- Tennessee median
- Medicare services
- 76vs 1,18794% below
- Part D claims
- 262vs 85369% below
Medians across 228 nephrologists in Tennessee with Dmand AI profiles that report each measure.
Dr. Johnson's most billed Medicare procedure codes, 2021
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Johnson and other nephrologists in Tennessee.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Harry Keith Johnson's patients have a median age of 59
Across all payers, Dmand AI patient panel data puts Dr. Johnson's median patient age at 59, with 50% 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 59
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Harry Keith Johnson wrote 338 Medicare Part D claims in 2024
In 2024, Dr. Johnson wrote 338 Medicare Part D claims for 14 patients. 94% of them were for generic drugs. CMS names the drug for 262 of them, across 15 drugs with 11 or more claims each, at $21,339 in total drug cost. In 2023, CMS named 151 claims across 8 drugs.
Dr. Johnson's Part D claims by kind of drug, 2024
- Generic318 claims94%
- Brand-name20 claims6%
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.
Drug classes CMS tracks in Dr. Johnson's Part D claims, 2024
- Antibiotics12%39 of 338 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: 1512024: 26274%
Drugs named by CMS: 15 in 2024, 8 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. Harry Keith 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. Harry Keith Johnson received $1,217 in industry payments from 2016 to 2025
CMS Open Payments shows 69 general payments to Dr. Johnson from 13 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 92% of the total. Relypsa, Inc. paid the most, $285.
General payments to Dr. Johnson by program year, 2016 to 2025
General payments to Dr. Johnson by kind, 2016 to 2025
- Food and beverage$1,11392%
- Education$1038%
Companies that paid Dr. Johnson 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. Harry Keith Johnson graduated from Tufts University School of Medicine
Dr. Johnson graduated from Tufts University School of Medicine in 1963.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Harry Keith 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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 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) |
| 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. Harry Keith Johnson
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What is Dr. Harry Keith Johnson's NPI number?
Dr. Harry Keith Johnson's NPI number is 1104808641. It was assigned on November 18, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Harry Keith Johnson?
Dr. Harry Keith Johnson is a nephrologist in Goodlettsville, Tennessee. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Harry Keith Johnson practice?
Dr. Johnson practices at 3024 Business Park Cir, Goodlettsville, TN 37072. Dr. Johnson's primary practice is Rads of America, LLC in Goodlettsville, Tennessee. Dmand AI also links Dr. Johnson to 1 dialysis center.
What is Dr. Harry Keith Johnson's office phone number?
The practice phone on file for Dr. Johnson is (615) 356-3999.
What is Dr. Harry Keith Johnson's medical license number?
Dr. Johnson holds Tennessee license 7208.
What medical group is Dr. Harry Keith Johnson part of?
Dr. Johnson is linked to Dialysis Clinic, Inc.
Does Dr. Harry Keith Johnson accept Medicare?
Yes. CMS data shows Dr. Johnson billed Medicare for 76 services in 2021, and Dr. Johnson accepts Medicare assignment.
What services does Dr. Harry Keith Johnson bill to Medicare?
In 2021, Dr. Johnson's most billed Medicare services were lab and pathology test (81003) and office visit, established patient (99214).
Where did Dr. Harry Keith Johnson go to medical school?
Dr. Johnson graduated from Tufts University School of Medicine in 1963.
What drugs does Dr. Harry Keith Johnson prescribe most?
In 2024 Medicare Part D data, Dr. Johnson's most prescribed drugs by claims were Prednisone, Nifedipine ER and Tamsulosin HCl.
Has Dr. Harry Keith Johnson received payments from drug or device companies?
CMS Open Payments shows $1,217 in general payments to Dr. Johnson from 13 companies from 2016 to 2025. The largest total came from Relypsa, Inc.
How long has Dr. Harry Keith Johnson been practicing?
Dr. Johnson graduated from medical school in 1963, 63 years ago.
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