Dr. John Robert Larson, MD

  • Goshen, IN
  • Family medicine physician
NPI1215932173PAC ID7214065994
Medicare services, 2024
1,451
Medicare patients, 2024
205
Part D claims, 2024
3,336
Publications
45
Hospital affiliations
5
Practice address
200 High Park Ave, Goshen, IN 46526
Practice phone
Call (574) 364-1000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Goshen Hospital

Hospital · Goshen, Indiana

See all 6 affiliations

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Dr. John Robert Larson is a family medicine physician in Goshen, Indiana

Dr. Larson practices at Goshen Hospital in Goshen, Indiana, part of Parkview Health System.

Dr. Larson's NPI, 1215932173, was assigned on June 16, 2005. Dr. Larson holds Indiana license 01033673.

NPI and contact details
Medicare PAC ID
7214065994
NPI enumeration date
June 16, 2005
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(574) 364-1000
Professional email
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Personal email
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Mobile number
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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. John Robert Larson practices at Goshen Hospital in Goshen, Indiana

Dr. Larson's primary practice is Goshen Hospital, at 200 High Park Ave, Goshen, IN 46526 in Elkhart County. The practice phone is (574) 364-1000.

  • Goshen Hospital
    200 High Park Ave, Goshen, IN 46526 · Elkhart CountyPhone(574) 364-1000

Source: Dmand AI Affiliation Data

Dr. John Robert Larson is affiliated with 5 sites of care and 1 medical group

Dr. Larson's primary practice is Goshen Hospital in Goshen, Indiana, part of Parkview Health System. Dr. Larson is also affiliated with Memorial Hospital of South Bend. The medical group on file is Goshen Health. Dmand AI also links Dr. Larson to 3 more hospitals, each named with a free account. Dr. Larson's employer is on file too: a hospital.

See all 6 affiliations for Dr. Larson

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

Dmand AI tracks the EHR system at Dr. John Robert Larson's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Larson practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Goshen HospitalAvailable with a free account
+4 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. John Robert Larson is one of 3,028 family medicine physicians in Indiana

Family medicine is Dr. Larson's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Larson is licensed in Indiana.

Specialties and state licenses

  • Family medicine, IndianaPrimaryLicense 01033673 · taxonomy 207Q00000X

Family medicine physicians near Dr. Larson

Counts of family medicine physicians 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. John Robert Larson billed Medicare for 1,451 services in 2024

CMS data shows 1,451 Medicare services from Dr. Larson across 8 procedure codes in 2024, for 205 Medicare patients. Medicare paid $70,604 for them.

Medicare services, 20241,451
Medicare patients205
Paid by Medicare$70,604
Procedure codes8

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

  • 2023
  • 2024
Office and hospital visits
2023: 6672024: 99649%
Surgery
2023: 2552024: 31122%
Lab and pathology
2023: 452024: 487%
Tests and treatments
2023: 502024: 484%
Other services
2023: 502024: 484%

Where Dr. Larson's Medicare services took place, 2024

  • In an office45631%
  • In a facility99569%

Dr. Larson compared with the Indiana median for family medicine physicians, 2024

  • Dr. Larson
  • Indiana median
Medicare services
1,451vs 4003.6 times
Medicare patients
205vs 16524% above
Part D claims
2,826vs 1,2282.3 times

Medians across 3,080 family medicine physicians in Indiana with Dmand AI profiles that report each measure.

Dr. Larson'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. Larson

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

Dr. John Robert Larson treated 205 Medicare patients in 2024, average age 75

CMS counts 205 Medicare patients who saw Dr. Larson in 2024. The largest group is 65 to 74, with 87 patients. 75% of them have high blood pressure, and 66% have high cholesterol. 14% are also on Medicaid. Their average risk score is 1.67, 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. Larson's median patient age at 69, with 50% women.

Medicare patients, 2024205
Average age75
Average risk score1.67
Also on Medicaid14%

Dr. Larson's Medicare patients by age, 2024

Dr. Larson's Medicare patients by sex, 2024

  • Women9345%
  • Men11255%

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

  1. High blood pressure75%
  2. High cholesterol66%
  3. Arthritis42%
  4. Diabetes37%
  5. Ischemic heart disease35%
  6. Atrial fibrillation31%
  7. Chronic kidney disease26%
  8. Heart failure25%

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

Dr. Larson'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

  • Women50%
  • Men50%

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

Dr. John Robert Larson wrote 3,336 Medicare Part D claims in 2024

In 2024, Dr. Larson wrote 3,336 Medicare Part D claims for 245 patients. 86% of them were for generic drugs. CMS names the drug for 2,826 of them, across 71 drugs with 11 or more claims each, at $287,571 in total drug cost. In 2023, CMS named 2,629 claims across 71 drugs.

Part D claims, 20243,336
Drugs named by CMS71
Total drug cost$287,571
Part D patients245

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

  • Generic2,876 claims86%
  • Brand-name430 claims13%
  • Other30 claims1%

Dr. Larson'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. Larson's Part D claims, 2024

  • Opioids3%112 of 3,336 claims
  • Antibiotics7%236 of 3,336 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: 2,6292024: 2,8267%

Drugs named by CMS: 71 in 2024, 71 in 2023.

See all prescribing by Dr. Larson

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

Dr. John Robert Larson ranks in the 94th percentile for removal of tissue in Medicare

Dr. Larson accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 312 procedures of removal of tissue by Dr. Larson, more than 94% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Where Dr. Larson ranks in Medicare procedure volume

Removal of tissue
94th percentile312 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)

Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)

Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. John Robert Larson has 45 publications on record

Dmand AI links 45 papers to Dr. Larson, published from 2008 to 2025. 2022 was the busiest year, with 5. The most frequent topics are Mice, Inbred C57BL, Hippocampus and Hypoxia. Dr. Larson has published most often in J Cardiovasc Electrophysiol. Dr. Larson's most frequent co-authors are Frank M. Bogun, MD, Amrish Deshmukh, MD and Michael Mousa-Jabra Ghannam, MD.

Papers45
Years published2008 to 2025

Dr. Larson's papers by year, 2014 to 2025

Topics Dr. Larson writes about most

  • Mice, Inbred C57BL
  • Hippocampus
  • Hypoxia
  • Mole Rats
  • Mice, Knockout
  • Neurons
  • Brain
  • Heart Failure

Dr. Larson's most frequent co-authors

Recent publications by Dr. Larson

See all 45 publications and co-authors

See who Dr. Larson researches with

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

How network discovery works

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

Dr. John Robert Larson received $3,128 in industry payments from 2016 to 2025

CMS Open Payments shows 111 general payments to Dr. Larson from 26 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 64% of the total. Integra LifeSciences Corporation paid the most, $1,607.

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

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

$3.1Kin total
  • Food and beverage$1,99964%
  • Travel and lodging$1,12836%
  • Education$10%

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

Share is of all general payments to this clinician.

See all payments to Dr. Larson

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

Sources for Dr. John Robert Larson'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)Doctors and Clinicians Utilization Data (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)
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. John Robert Larson

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. John Robert Larson's NPI number?

Dr. John Robert Larson's NPI number is 1215932173. It was assigned on June 16, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. John Robert Larson?

Dr. John Robert Larson is a family medicine physician in Goshen, Indiana. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).

Where does Dr. John Robert Larson practice?

Dr. Larson practices at 200 High Park Ave, Goshen, IN 46526. Dr. Larson's primary practice is Goshen Hospital in Goshen, Indiana, part of Parkview Health System. Dmand AI also links Dr. Larson to 3 hospitals.

What is Dr. John Robert Larson's office phone number?

The practice phone on file for Dr. Larson is (574) 364-1000.

What is Dr. John Robert Larson's medical license number?

Dr. Larson holds Indiana license 01033673.

Which hospitals is Dr. John Robert Larson affiliated with?

Dr. Larson practices at Goshen Hospital in Goshen, Indiana. Dr. Larson is also affiliated with Memorial Hospital of South Bend. Dmand AI links Dr. Larson to 3 more hospitals.

What medical group is Dr. John Robert Larson part of?

Dr. Larson is linked to Goshen Health.

Does Dr. John Robert Larson accept Medicare?

Yes. CMS data shows Dr. Larson billed Medicare for 1,451 services in 2024, and Dr. Larson accepts Medicare assignment.

How many Medicare patients does Dr. John Robert Larson see?

CMS counts 205 Medicare patients who saw Dr. Larson in 2024, with an average age of 75.

What services does Dr. John Robert Larson bill to Medicare?

In 2024, Dr. Larson's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and surgery: skin and soft tissue (11042).

Show 5 more questionsShow fewer questions

What drugs does Dr. John Robert Larson prescribe most?

In 2024 Medicare Part D data, Dr. Larson's most prescribed drugs by claims were Amlodipine Besylate, Atorvastatin Calcium and Lisinopril.

Has Dr. John Robert Larson received payments from drug or device companies?

CMS Open Payments shows $3,128 in general payments to Dr. Larson from 26 companies from 2016 to 2025. The largest total came from Integra LifeSciences Corporation.

How long has Dr. John Robert Larson been practicing?

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

Does Dr. John Robert Larson do research?

Dmand AI links 45 publications to Dr. Larson, published from 2008 to 2025.

Who does Dr. John Robert Larson publish with?

Dr. Larson's most frequent co-authors are Frank M. Bogun, MD (5 shared papers), Amrish Deshmukh, MD (5 shared papers) and Michael Mousa-Jabra Ghannam, MD (5 shared papers).

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