$112 in research paymentsAlzheimer DiseaseTauopathiesFlortaucipir F18
Dr. Keith A. Johnson, MD
NPI1841263159
- Part D claims, 2017
- 24
- Clinical trials
- 1
- Industry payments
- $27,096
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 33 Fruit St, Boston, MA 02114-2621
- Practice phone
- Call (617) 724-7066
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
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. Keith A. Johnson is a neurologist in Boston, Massachusetts
Dr. Johnson practices in Boston, Massachusetts.
Dr. Johnson's NPI, 1841263159, was assigned on February 8, 2006. Dr. Johnson holds Massachusetts license 50853.
NPI and contact details
- NPI
- 1841263159NPI Registry (opens in a new tab)
- NPI enumeration date
- February 8, 2006
- NPI status
- Active
- Practice phone
- (617) 724-7066
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Keith A. Johnson's practice address is in Boston, Massachusetts
Dr. Johnson's practice address in the NPI Registry is 33 Fruit St, Boston, MA 02114-2621. The practice phone is (617) 724-7066.
- NPI Registry address33 Fruit St, Boston, MA 02114-2621Phone(617) 724-7066
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Keith A. 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 |
|---|---|
| Dr. Johnson's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Keith A. Johnson is one of 806 neurologists in Massachusetts
Neurology is Dr. Johnson's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Johnson is licensed in Massachusetts.
Specialties and state licenses
- Neurology, MassachusettsPrimary
Neurologists near Dr. Johnson
Counts of neurologists 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. Keith A. Johnson wrote 24 Medicare Part D claims in 2017
In 2017, Dr. Johnson wrote 24 Medicare Part D claims. Every claim was for a generic drug. They cover 2 drugs, with $886 in total drug cost. In 2016, CMS named 13 claims across 1 drug.
Part D claims, 201724
Drugs named by CMS2
Total drug cost$886
Dr. Johnson's most prescribed drugs by claims, 2017
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, 2016 to 2017
- 2016
- 2017
- Claims for drugs CMS names
- 2016: 132017: 2485%
Drugs named by CMS: 2 in 2017, 1 in 2016.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Keith A. Johnson has worked on 1 clinical trial
Dmand AI links Dr. Johnson to 1 clinical trial. Conditions studied include Alzheimer Disease and Tauopathies. Open Payments lists research payments to Dr. Johnson that name 1 trial.
Conditions in Dr. Johnson's trials
- Alzheimer Disease
- Tauopathies
Investigators on the most trials with Dr. Johnson
- Tammie Lee Benzinger, MD1 shared trial
- Tracy Anne Butler, MD1 shared trial
- Craig Thomas Curtis, MD1 shared trial
Recent clinical trials with Dr. Johnson
Sources: Open Payments (CMS), 2025 data, released July 7, 2026; ClinicalTrials.gov (National Library of Medicine); and Dmand AI Research Linkage
Dr. Keith A. Johnson received $27,096 in industry payments from 2016 to 2025
CMS Open Payments shows 31 general payments to Dr. Johnson from 10 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 77% of the total. Merck Sharp & Dohme Corporation paid the most, $16,320. It also lists 16 research payments totaling $44,369 from 2016 to 2023, naming 1 clinical trial.
General payments to Dr. Johnson by program year, 2016 to 2025
General payments to Dr. Johnson by kind, 2016 to 2025
$27.1Kin total
- Consulting fees$20,86077%
- Honoraria$4,20016%
- Food and beverage$1,0294%
- Travel and lodging$1,0074%
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
Sources for Dr. Keith A. 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 |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Clinical trials and co-investigators | ClinicalTrials.gov (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. Keith A. 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. Keith A. Johnson's NPI number?
Dr. Keith A. Johnson's NPI number is 1841263159. It was assigned on February 8, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Keith A. Johnson?
Dr. Keith A. Johnson is a neurologist in Boston, Massachusetts. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Keith A. Johnson practice?
Dr. Johnson practices at 33 Fruit St, Boston, MA 02114-2621.
What is Dr. Keith A. Johnson's office phone number?
The practice phone on file for Dr. Johnson is (617) 724-7066.
What is Dr. Keith A. Johnson's medical license number?
Dr. Johnson holds Massachusetts license 50853.
What drugs does Dr. Keith A. Johnson prescribe most?
In 2017 Medicare Part D data, Dr. Johnson's most prescribed drugs by claims were Donepezil HCl and Memantine HCl.
Has Dr. Keith A. Johnson received payments from drug or device companies?
CMS Open Payments shows $27,096 in general payments to Dr. Johnson from 10 companies from 2016 to 2025. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Keith A. Johnson been practicing?
Dr. Johnson's NPI was assigned in 2006.
Does Dr. Keith A. Johnson do research?
Dr. Johnson has worked on 1 clinical trial.
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