Dr. Keith Angelo Johnstone Sr., MD

  • Fresno, CA
  • Interventional cardiologist
NPI1760466049PAC ID1850395500
Medicare services, 2024
413
Medicare patients, 2024
116
Part D claims, 2024
2,626
Publications
2
Hospital affiliations
1
Practice address
7300 North Fresno St, Fresno, CA 93720
Practice phone
Call (559) 448-4500
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Kaiser Permanente Fresno Medical Center

Hospital · Fresno, California

See all 4 affiliations

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Dr. Keith Angelo Johnstone Sr. is an interventional cardiologist in Fresno, California

Dr. Johnstone practices at Kaiser Permanente Fresno Medical Center in Fresno, California, part of Kaiser Permanente.

Dr. Johnstone's NPI, 1760466049, was assigned on December 1, 2005. Dr. Johnstone graduated from University of Michigan Medical School in 1983. Dr. Johnstone holds Michigan license 4301048096.

NPI and contact details
Medicare PAC ID
1850395500
NPI enumeration date
December 1, 2005
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(559) 448-4500
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
69
Medical school graduation
1983

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Keith Angelo Johnstone Sr. practices at Kaiser Permanente Fresno Medical Center in Fresno, California

Dr. Johnstone's primary practice is Kaiser Permanente Fresno Medical Center, at 7300 North Fresno St, Fresno, CA 93720 in Fresno County. The practice phone is (559) 448-4500.

Source: Dmand AI Affiliation Data

Dr. Keith Angelo Johnstone Sr. is affiliated with 2 sites of care and 2 medical groups

Dr. Johnstone's primary practice is Kaiser Permanente Fresno Medical Center in Fresno, California, part of Kaiser Permanente. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Johnstone to 1 more physician office and 1 medical group, each named with a free account.

See all 4 affiliations for Dr. Johnstone

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Keith Angelo Johnstone Sr.'s practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnstone practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Kaiser Permanente Fresno Medical CenterAvailable with a free account
+1 more site and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Keith Angelo Johnstone Sr. is one of 582 interventional cardiologists in California

Interventional cardiology is Dr. Johnstone's primary specialty in the NPI Registry, under taxonomy code 207RI0011X. Dr. Johnstone is licensed in Michigan.

Specialties and state licenses

  • Interventional cardiology, MichiganPrimaryLicense 4301048096 · taxonomy 207RI0011X

Interventional cardiologists near Dr. Johnstone

Counts of interventional cardiologists 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 Angelo Johnstone Sr. billed Medicare for 413 services in 2024

CMS data shows 413 Medicare services from Dr. Johnstone across 5 procedure codes in 2024, for 116 Medicare patients. Medicare paid $24,648 for them. Every service was in an office.

Medicare services, 2024413
Medicare patients116
Paid by Medicare$24,648
Procedure codes5

Dr. Johnstone's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 3802024: 25034%
Tests and treatments
2023: 1562024: 1634%

Dr. Johnstone compared with the California median for interventional cardiologists, 2024

  • Dr. Johnstone
  • California median
Medicare services
413vs 2,38783% below
Medicare patients
116vs 75185% below
Part D claims
2,456vs 1,82635% above

Medians across 573 interventional cardiologists in California with Dmand AI profiles that report each measure.

Dr. Johnstone's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Johnstone

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Keith Angelo Johnstone Sr. treated 116 Medicare patients in 2024, average age 74

CMS counts 116 Medicare patients who saw Dr. Johnstone in 2024. The largest group is 75 to 84, with 46 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 24% are also on Medicaid. Their average risk score is 1.98, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Johnstone's median patient age at 69, with 60% women.

Medicare patients, 2024116
Average age74
Average risk score1.98
Also on Medicaid24%

Dr. Johnstone's Medicare patients by age, 2024

Dr. Johnstone's Medicare patients by sex, 2024

  • Women7565%
  • Men4135%

Chronic conditions among Dr. Johnstone's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis59%
  4. Diabetes54%
  5. Chronic kidney disease53%
  6. Ischemic heart disease41%
  7. Heart failure37%
  8. COPD31%

Share of Medicare patients with each condition. A patient can have several.

Dr. Johnstone'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

  • Women60%
  • Men40%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Keith Angelo Johnstone Sr. wrote 2,626 Medicare Part D claims in 2024

In 2024, Dr. Johnstone wrote 2,626 Medicare Part D claims for 407 patients. 88% of them were for generic drugs. CMS names the drug for 2,456 of them, across 37 drugs with 11 or more claims each, at $251,019 in total drug cost. In 2023, CMS named 2,229 claims across 34 drugs.

Part D claims, 20242,626
Drugs named by CMS37
Total drug cost$251,019
Part D patients407

Dr. Johnstone's Part D claims by kind of drug, 2024

  • Generic2,323 claims88%
  • Brand-name303 claims12%

Dr. Johnstone'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.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 2,2292024: 2,45610%

Drugs named by CMS: 37 in 2024, 34 in 2023.

See all prescribing by Dr. Johnstone

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. Keith Angelo Johnstone Sr. takes part in Medicare

Dr. Johnstone 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. Keith Angelo Johnstone Sr. has 2 publications on record

Dmand AI links 2 papers to Dr. Johnstone in 2020. Dr. Johnstone's most frequent co-author is Cornelius Dijon Jamison, MD.

Papers2

Dr. Johnstone's most frequent co-authors

Recent publications by Dr. Johnstone

See all 2 publications and co-authors

See who Dr. Johnstone researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Johnstone works with, so you can find a warm path to the right interventional cardiologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Keith Angelo Johnstone Sr. received $8,545 in industry payments from 2016 to 2025

CMS Open Payments shows 299 general payments to Dr. Johnstone from 35 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 80% of the total. C. R. Bard, Inc. & Subsidiaries paid the most, $1,138.

General payments to Dr. Johnstone by program year, 2016 to 2025

General payments to Dr. Johnstone by kind, 2016 to 2025

$8.5Kin total
  • Food and beverage$6,83680%
  • Travel and lodging$1,65819%
  • Education$511%

Companies that paid Dr. Johnstone the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Johnstone

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Keith Angelo Johnstone Sr. graduated from University of Michigan Medical School

Dr. Johnstone graduated from University of Michigan Medical School in 1983.

  1. Medical schoolUniversity of Michigan Medical School

Source: Dmand AI Professional Profile Data

Sources for Dr. Keith Angelo Johnstone Sr.'s profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Keith Angelo Johnstone Sr.

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 Angelo Johnstone Sr.'s NPI number?

Dr. Keith Angelo Johnstone Sr.'s NPI number is 1760466049. It was assigned on December 1, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. Keith Angelo Johnstone Sr.?

Dr. Keith Angelo Johnstone Sr. is an interventional cardiologist in Fresno, California. The primary specialty in the NPI Registry is Interventional Cardiology Physician (taxonomy code 207RI0011X).

Where does Dr. Keith Angelo Johnstone Sr. practice?

Dr. Johnstone practices at 7300 North Fresno St, Fresno, CA 93720. Dr. Johnstone's primary practice is Kaiser Permanente Fresno Medical Center in Fresno, California, part of Kaiser Permanente. Dmand AI also links Dr. Johnstone to 1 physician office and 1 medical group.

What is Dr. Keith Angelo Johnstone Sr.'s office phone number?

The practice phone on file for Dr. Johnstone is (559) 448-4500.

What is Dr. Keith Angelo Johnstone Sr.'s medical license number?

Dr. Johnstone holds Michigan license 4301048096.

Which hospitals is Dr. Keith Angelo Johnstone Sr. affiliated with?

Dr. Johnstone practices at Kaiser Permanente Fresno Medical Center in Fresno, California.

What medical group is Dr. Keith Angelo Johnstone Sr. part of?

Dr. Johnstone is linked to The Permanente Medical Group, Inc. Dmand AI links Dr. Johnstone to 1 more medical group.

Does Dr. Keith Angelo Johnstone Sr. accept Medicare?

Yes. CMS data shows Dr. Johnstone billed Medicare for 413 services in 2024, and Dr. Johnstone accepts Medicare assignment.

How many Medicare patients does Dr. Keith Angelo Johnstone Sr. see?

CMS counts 116 Medicare patients who saw Dr. Johnstone in 2024, with an average age of 74.

What services does Dr. Keith Angelo Johnstone Sr. bill to Medicare?

In 2024, Dr. Johnstone's most billed Medicare services were office visit, established patient (99213), heart test or procedure (93000) and heart test or procedure (93306).

Show 6 more questionsShow fewer questions

Where did Dr. Keith Angelo Johnstone Sr. go to medical school?

Dr. Johnstone graduated from University of Michigan Medical School in 1983.

What drugs does Dr. Keith Angelo Johnstone Sr. prescribe most?

In 2024 Medicare Part D data, Dr. Johnstone's most prescribed drugs by claims were Losartan Potassium, Metoprolol Succinate and Amlodipine Besylate.

Has Dr. Keith Angelo Johnstone Sr. received payments from drug or device companies?

CMS Open Payments shows $8,545 in general payments to Dr. Johnstone from 35 companies from 2016 to 2025. The largest total came from C. R. Bard, Inc. & Subsidiaries.

How long has Dr. Keith Angelo Johnstone Sr. been practicing?

Dr. Johnstone graduated from medical school in 1983, 43 years ago.

Does Dr. Keith Angelo Johnstone Sr. do research?

Dmand AI links 2 publications to Dr. Johnstone.

Who does Dr. Keith Angelo Johnstone Sr. publish with?

Dr. Johnstone's most frequent co-authors are Cornelius Dijon Jamison, MD (1 shared paper).

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