Dr. Jeffrey R. Ihlendorf, MD

  • Indianapolis, IN
  • Internist
NPI1205848728PAC ID8921108614
Medicare services, 2024
918
Medicare patients, 2024
306
Part D claims, 2024
10,575
Hospital affiliations
2
Industry payments
$17
Practice address
2001 W 86th St, Indianapolis, IN 46260
Practice phone
Call (317) 338-2172
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Ascension St Vincent Hospital- Indianapolis

Indianapolis, Indiana

See all 11 affiliations

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Dr. Jeffrey R. Ihlendorf is an internist in Indianapolis, Indiana

Dr. Ihlendorf practices at Ascension St Vincent Hospital- Indianapolis in Indianapolis, Indiana.

Dr. Ihlendorf's NPI, 1205848728, was assigned on August 13, 2006. Dr. Ihlendorf graduated from University Of Cincinnati College Of Medicine in 2003. Dr. Ihlendorf's Indiana license number on file is 01063183A.

NPI and contact details
Medicare PAC ID
8921108614
NPI enumeration date
August 13, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(317) 338-2172
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
49
Medical school graduation
2003

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

Dr. Jeffrey R. Ihlendorf practices at Ascension St Vincent Hospital- Indianapolis in Indianapolis, Indiana

Dr. Ihlendorf's primary practice is Ascension St Vincent Hospital- Indianapolis, at 2001 W 86th St, Indianapolis, IN 46260 in Marion County. The practice phone is (317) 338-2172.

  • Ascension St Vincent Hospital- Indianapolis
    2001 W 86th St, Indianapolis, IN 46260 · Marion CountyPhone(317) 338-2172

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Jeffrey R. Ihlendorf is affiliated with 9 sites of care and 2 medical groups

Dr. Ihlendorf's primary practice is Ascension St Vincent Hospital- Indianapolis in Indianapolis, Indiana. Dr. Ihlendorf is also affiliated with IU Health Methodist Hospital. The medical group on file is IU Health Medical Group. Dmand AI also links Dr. Ihlendorf to 1 more hospital, 3 home health agencies, 2 group practices and clinics, 1 skilled nursing facility and 1 medical group, each named with a free account.

See all 11 affiliations for Dr. Ihlendorf

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. Jeffrey R. Ihlendorf's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ihlendorf practices, 8 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Ascension St Vincent Hospital- IndianapolisAvailable with a free account
+8 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Jeffrey R. Ihlendorf is one of 1,987 internists in Indiana

Internal medicine is Dr. Ihlendorf's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Ihlendorf is board certified in internal medicine by the American Board of Internal Medicine. Dr. Ihlendorf has a license on file in Indiana.

Specialties and state licenses

  • Internal medicine, IndianaPrimaryLicense 01063183A · 2007 to 2025 · taxonomy 207R00000X

Clinical focus

Dmand AI lists acid reflux, acute gastroduodenitis, acute kidney failure, acute sinusitis, aneurysm, aortic atherosclerois, arteritis and arthritis among the conditions Dr. Ihlendorf treats.

Internists near Dr. Ihlendorf

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. Jeffrey R. Ihlendorf billed Medicare for 918 services in 2024

CMS data shows 918 Medicare services from Dr. Ihlendorf across 12 procedure codes in 2024, for 306 Medicare patients. Medicare paid $60,279 for them. Every service was in an office.

Medicare services, 2024918
Medicare patients306
Paid by Medicare$60,279
Procedure codes12

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

  • 2023
  • 2024
Office and hospital visits
2023: 5152024: 5537%
Other services
2023: 1232024: 13711%
Tests and treatments
2023: 832024: 13360%
Lab and pathology
2023: 802024: 9519%

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

  • Dr. Ihlendorf
  • Indiana median
Medicare services
918vs 52077% above
Medicare patients
306vs 21244% above
Part D claims
9,857vs 15962.0 times

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

Dr. Ihlendorf'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. Ihlendorf

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ihlendorf and other internists in Indiana.

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

Dr. Jeffrey R. Ihlendorf treated 306 Medicare patients in 2024, average age 74

CMS counts 306 Medicare patients who saw Dr. Ihlendorf in 2024. The largest group is 65 to 74, with 137 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 13% are also on Medicaid. Their average risk score is 1.26, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Ihlendorf's median patient age at 52, with 51% women.

Medicare patients, 2024306
Average age74
Average risk score1.26
Also on Medicaid13%

Dr. Ihlendorf's Medicare patients by age, 2024

Dr. Ihlendorf's Medicare patients by sex, 2024

  • Women14848%
  • Men15852%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Diabetes42%
  4. Arthritis41%
  5. Chronic kidney disease32%
  6. Ischemic heart disease30%
  7. Mood disorders30%
  8. Depression29%

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

Dr. Ihlendorf's patients across all payers

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

Patient panel by age, all payers

Median age 52

Patient panel by sex, all payers

  • Women51%
  • Men49%

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

Dr. Jeffrey R. Ihlendorf wrote 10,575 Medicare Part D claims in 2024

In 2024, Dr. Ihlendorf wrote 10,575 Medicare Part D claims for 690 patients. 87% of them were for generic drugs. CMS names the drug for 9,857 of them, across 149 drugs with 11 or more claims each, at $1,104,950 in total drug cost. In 2023, CMS named 9,472 claims across 149 drugs.

Part D claims, 202410,575
Drugs named by CMS149
Total drug cost$1.1M
Part D patients690

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

  • Generic9,165 claims87%
  • Brand-name1,319 claims12%
  • Other91 claims1%

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

  • Opioids2%253 of 10,575 claims
  • Antibiotics1%81 of 10,575 claims
  • Antipsychotics, patients 65 and over0%28 of 10,575 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: 9,4722024: 9,8574%

Drugs named by CMS: 149 in 2024, 149 in 2023.

See all prescribing by Dr. Ihlendorf

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. Jeffrey R. Ihlendorf takes part in Medicare

Dr. Ihlendorf accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Removal of skin lesions: 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. Jeffrey R. Ihlendorf received $17 in industry payments in 2016

CMS Open Payments shows 1 general payment to Dr. Ihlendorf from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. GlaxoSmithKline, LLC. paid the most, $17.

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

Share is of all general payments to this clinician.

See all payments to Dr. Ihlendorf

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

Dr. Jeffrey R. Ihlendorf has 4 awards and honors on record

Dmand AI lists 4 awards for Dr. Ihlendorf, most recently NCQA PCMH in 2014.

Awards and honors for Dr. Ihlendorf

  1. 2014
    • NCQA PCMH
    • NCQA PPC
  2. 2013
    • NCQA DRP
  3. 2011
    • CMS Stage 1 2012

Source: Dmand AI Professional Profile Data

Dr. Jeffrey R. Ihlendorf graduated from University Of Cincinnati College Of Medicine

Dr. Ihlendorf graduated from University Of Cincinnati College Of Medicine in 2003. Dr. Ihlendorf is a member of ACP.

  1. Medical schoolUniversity Of Cincinnati College Of Medicine
  2. Board certified in internal medicineAmerican Board of Internal Medicine
  3. Board certified in pediatricsAmerican Board of Pediatrics

Source: Dmand AI Professional Profile Data

Dr. Jeffrey R. Ihlendorf accepts plans from 16 insurance carriers

Dr. Ihlendorf is in network with 16 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.

  • Aetna
  • Elevance
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • HCSC
  • Alliant Health Plans
  • Aspirus Health Plan
  • Blue Cross Blue Shield of Massachusetts
  • +8 more carriersWith a free account

Plan types Dr. Ihlendorf accepts, by number of carriers

  1. PPO10
  2. HMO8
  3. Medicare8
  4. POS6
  5. EPO4

Source: Dmand AI Insurance Network Data

Sources for Dr. Jeffrey R. Ihlendorf'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network 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. Jeffrey R. Ihlendorf

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. Jeffrey R. Ihlendorf's NPI number?

Dr. Jeffrey R. Ihlendorf's NPI number is 1205848728. It was assigned on August 13, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Jeffrey R. Ihlendorf?

Dr. Jeffrey R. Ihlendorf is an internist in Indianapolis, Indiana. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Jeffrey R. Ihlendorf practice?

Dr. Ihlendorf practices at 2001 W 86th St, Indianapolis, IN 46260. Dr. Ihlendorf's primary practice is Ascension St Vincent Hospital- Indianapolis in Indianapolis, Indiana. Dmand AI also links Dr. Ihlendorf to 1 hospital, 3 home health agencies, 2 group practices and clinics, 1 skilled nursing facility and 1 medical group.

What is Dr. Jeffrey R. Ihlendorf's office phone number?

The practice phone on file for Dr. Ihlendorf is (317) 338-2172.

What is Dr. Jeffrey R. Ihlendorf's medical license number?

Dr. Ihlendorf's Indiana license number on file is 01063183A.

Which hospitals is Dr. Jeffrey R. Ihlendorf affiliated with?

Dr. Ihlendorf is affiliated with IU Health Methodist Hospital. Dmand AI links Dr. Ihlendorf to 1 more hospital.

What medical group is Dr. Jeffrey R. Ihlendorf part of?

Dr. Ihlendorf is linked to IU Health Medical Group. Dmand AI links Dr. Ihlendorf to 1 more medical group.

Does Dr. Jeffrey R. Ihlendorf accept Medicare?

Yes. CMS data shows Dr. Ihlendorf billed Medicare for 918 services in 2024, and Dr. Ihlendorf accepts Medicare assignment.

How many Medicare patients does Dr. Jeffrey R. Ihlendorf see?

CMS counts 306 Medicare patients who saw Dr. Ihlendorf in 2024, with an average age of 74.

Is Dr. Jeffrey R. Ihlendorf board certified?

Yes. Dr. Ihlendorf is board certified in internal medicine by the American Board of Internal Medicine.

Show 6 more questionsShow fewer questions

What services does Dr. Jeffrey R. Ihlendorf bill to Medicare?

In 2024, Dr. Ihlendorf's most billed Medicare services were office visit, established patient (99214), lab and pathology test (83036) and office visit, established patient (99211).

Where did Dr. Jeffrey R. Ihlendorf go to medical school?

Dr. Ihlendorf graduated from University Of Cincinnati College Of Medicine in 2003.

What drugs does Dr. Jeffrey R. Ihlendorf prescribe most?

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

Has Dr. Jeffrey R. Ihlendorf received payments from drug or device companies?

CMS Open Payments shows $17 in general payments to Dr. Ihlendorf from 1 company from 2016 to 2016. The largest total came from GlaxoSmithKline, LLC.

How long has Dr. Jeffrey R. Ihlendorf been practicing?

Dr. Ihlendorf graduated from medical school in 2003, 23 years ago.

What insurance does Dr. Jeffrey R. Ihlendorf accept?

Dr. Ihlendorf is in network with 16 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.

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