Dr. Keith E. Mahin, DO

  • Lafayette, IN
  • Internist
NPI1770928608PAC ID5496076721
Medicare services, 2024
712
Medicare patients, 2024
256
Part D claims, 2024
250
Hospital affiliations
2
Industry payments
$116
Practice address
5165 McCarty Ln, Lafayette, IN 47905
Practice phone
Call (765) 448-8000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Indiana University Health Arnett Hospital

Hospital · Lafayette, Indiana

See all 8 affiliations

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Dr. Keith E. Mahin is an internist in Lafayette, Indiana

Dr. Mahin practices at Indiana University Health Arnett Hospital in Lafayette, Indiana, part of Indiana University Health.

Dr. Mahin's NPI, 1770928608, was assigned on May 6, 2013. Dr. Mahin graduated from Lincoln Medical College, Eclectic in 2013. Dr. Mahin holds Indiana license 02004789A.

NPI and contact details
Medicare PAC ID
5496076721
NPI enumeration date
May 6, 2013
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(765) 448-8000
Professional email
Get email
Personal email
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Mobile number
Get number
Sex
Male
Estimated age
39
Medical school graduation
2013

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

Dr. Keith E. Mahin practices at Indiana University Health Arnett Hospital in Lafayette, Indiana

Dr. Mahin's primary practice is Indiana University Health Arnett Hospital, at 5165 McCarty Ln, Lafayette, IN 47905 in Tippecanoe County. The practice phone is (765) 448-8000.

Source: Dmand AI Affiliation Data

Dr. Keith E. Mahin is affiliated with 4 sites of care and 4 medical groups

Dr. Mahin's primary practice is Indiana University Health Arnett Hospital in Lafayette, Indiana, part of Indiana University Health. Dr. Mahin is also affiliated with IU Health Methodist Hospital. The medical group on file is IU Health Medical Group. Dmand AI also links Dr. Mahin to 3 more medical groups and 2 group practices and clinics, each named with a free account.

See all 8 affiliations for Dr. Mahin

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

Dmand AI tracks the EHR system at Dr. Keith E. Mahin's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mahin practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Indiana University Health Arnett HospitalAvailable with a free account
+3 more sites and 3 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Keith E. Mahin is one of 1,987 internists in Indiana

Internal medicine is Dr. Mahin's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Mahin's licenses on file in 2 states: Indiana and Michigan.

Specialties and state licenses

  • Internal medicine, IndianaPrimaryLicense 02004789A · taxonomy 207R00000X
  • Michigan licenseLicense 5101020218

Internists near Dr. Mahin

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. Keith E. Mahin billed Medicare for 712 services in 2024

CMS data shows 712 Medicare services from Dr. Mahin across 3 procedure codes in 2024, for 256 Medicare patients. Medicare paid $60,771 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024712
Medicare patients256
Paid by Medicare$60,771
Procedure codes3

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

  • 2023
  • 2024
Office and hospital visits
2023: 8752024: 71219%

Dr. Mahin compared with the Indiana median for internists, 2024

  • Dr. Mahin
  • Indiana median
Medicare services
712vs 52037% above
Medicare patients
256vs 21221% above
Part D claims
66vs 15958% below

Medians across 1,948 internists in Indiana with Dmand AI profiles that report each measure.

Dr. Mahin'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. Mahin

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

Dr. Keith E. Mahin treated 256 Medicare patients in 2024, average age 77

CMS counts 256 Medicare patients who saw Dr. Mahin in 2024. The largest group is 75 to 84, with 100 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 24% are also on Medicaid. Their average risk score is 2.56, 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. Mahin's median patient age at 68, with 49% women.

Medicare patients, 2024256
Average age77
Average risk score2.56
Also on Medicaid24%

Dr. Mahin's Medicare patients by age, 2024

Dr. Mahin's Medicare patients by sex, 2024

  • Women13452%
  • Men12248%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Chronic kidney disease57%
  4. Mood disorders54%
  5. Depression51%
  6. Arthritis50%
  7. Ischemic heart disease50%
  8. Anxiety48%

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

Dr. Mahin's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 68

Patient panel by sex, all payers

  • Women49%
  • Men51%

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

Dr. Keith E. Mahin wrote 250 Medicare Part D claims in 2024

In 2024, Dr. Mahin wrote 250 Medicare Part D claims for 133 patients. 90% of them were for generic drugs. CMS names the drug for 66 of them, across 4 drugs with 11 or more claims each, at $11,359 in total drug cost. In 2023, CMS named 53 claims across 4 drugs.

Part D claims, 2024250
Drugs named by CMS4
Total drug cost$11,359
Part D patients133

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

  • Generic225 claims90%
  • Brand-name25 claims10%

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

  • Opioids11%28 of 250 claims
  • Antibiotics18%46 of 250 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: 532024: 6625%

Drugs named by CMS: 4 in 2024, 4 in 2023.

See all prescribing by Dr. Mahin

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 E. Mahin takes part in Medicare

Dr. Mahin 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 E. Mahin received $116 in industry payments in 2016

CMS Open Payments shows 4 general payments to Dr. Mahin from 3 drug and device companies in 2016. Food and beverage make up the largest share, 100% of the total. Allergan Inc. paid the most, $60.

Companies that paid Dr. Mahin the most, 2016 to 2016

Share is of all general payments to this clinician.

See all payments to Dr. Mahin

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

Dr. Keith E. Mahin graduated from Lincoln Medical College, Eclectic

Dr. Mahin graduated from Lincoln Medical College, Eclectic in 2013.

  1. Medical schoolLincoln Medical College, Eclectic

Source: Dmand AI Professional Profile Data

Sources for Dr. Keith E. Mahin'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)
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 E. Mahin

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 E. Mahin's NPI number?

Dr. Keith E. Mahin's NPI number is 1770928608. It was assigned on May 6, 2013, and it is active in the NPI Registry.

What kind of doctor is Dr. Keith E. Mahin?

Dr. Keith E. Mahin is an internist in Lafayette, Indiana. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Keith E. Mahin practice?

Dr. Mahin practices at 5165 McCarty Ln, Lafayette, IN 47905. Dr. Mahin's primary practice is Indiana University Health Arnett Hospital in Lafayette, Indiana, part of Indiana University Health. Dmand AI also links Dr. Mahin to 3 medical groups and 2 group practices and clinics.

What is Dr. Keith E. Mahin's office phone number?

The practice phone on file for Dr. Mahin is (765) 448-8000.

What is Dr. Keith E. Mahin's medical license number?

Dr. Mahin holds Indiana license 02004789A, one of the licenses on file in 2 states.

Which states has Dr. Keith E. Mahin been licensed in?

Dmand AI has state licenses on file for Dr. Mahin in Indiana and Michigan.

Which hospitals is Dr. Keith E. Mahin affiliated with?

Dr. Mahin practices at Indiana University Health Arnett Hospital in Lafayette, Indiana. Dr. Mahin is also affiliated with IU Health Methodist Hospital.

What medical group is Dr. Keith E. Mahin part of?

Dr. Mahin is linked to IU Health Medical Group. Dmand AI links Dr. Mahin to 3 more medical groups.

Does Dr. Keith E. Mahin accept Medicare?

Yes. CMS data shows Dr. Mahin billed Medicare for 712 services in 2024, and Dr. Mahin accepts Medicare assignment.

How many Medicare patients does Dr. Keith E. Mahin see?

CMS counts 256 Medicare patients who saw Dr. Mahin in 2024, with an average age of 77.

Show 5 more questionsShow fewer questions

What services does Dr. Keith E. Mahin bill to Medicare?

In 2024, Dr. Mahin's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99239) and hospital inpatient care (99223).

Where did Dr. Keith E. Mahin go to medical school?

Dr. Mahin graduated from Lincoln Medical College, Eclectic in 2013.

What drugs does Dr. Keith E. Mahin prescribe most?

In 2024 Medicare Part D data, Dr. Mahin's most prescribed drugs by claims were Eliquis, Amoxicillin-Clavulanate Potass and Prednisone.

Has Dr. Keith E. Mahin received payments from drug or device companies?

CMS Open Payments shows $116 in general payments to Dr. Mahin from 3 companies from 2016 to 2016. The largest total came from Allergan Inc.

How long has Dr. Keith E. Mahin been practicing?

Dr. Mahin graduated from medical school in 2013, 13 years ago.

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