Dr. Ellen S. Horstmann, MD

  • Indianapolis, IN
  • Emergency medicine physician
NPI1265093215PAC ID8022340967
Medicare services, 2024
15
Medicare patients, 2024
24
Part D claims, 2024
55
Hospital affiliations
2
Medical groups
3
Practice address
720 Eskenazi Avenue, Indianapolis, IN 46202
Practice phone
Call (317) 880-4818
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Sidney & Lois Eskenazi Hospital

Hospital · Indianapolis, Indiana

See all 5 affiliations

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Dr. Ellen S. Horstmann is an emergency medicine physician in Indianapolis, Indiana

Dr. Horstmann practices at Sidney & Lois Eskenazi Hospital in Indianapolis, Indiana, part of Health & Hospital Corporation of Marion County.

Dr. Horstmann's NPI, 1265093215, was assigned on June 20, 2019. Dr. Horstmann holds Indiana license 01093892A.

NPI and contact details
Medicare PAC ID
8022340967
NPI enumeration date
June 20, 2019
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(317) 880-4818
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
35
Medical school graduation
2017

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

Dr. Ellen S. Horstmann practices at Sidney & Lois Eskenazi Hospital in Indianapolis, Indiana

Dr. Horstmann's primary practice is Sidney & Lois Eskenazi Hospital, at 720 Eskenazi Avenue, Indianapolis, IN 46202 in Marion County. The practice phone is (317) 880-4818.

Source: Dmand AI Affiliation Data

Dr. Ellen S. Horstmann is affiliated with 2 sites of care and 3 medical groups

Dr. Horstmann's primary practice is Sidney & Lois Eskenazi Hospital in Indianapolis, Indiana, part of Health & Hospital Corporation of Marion County. Dr. Horstmann is also affiliated with IU Health Ball Memorial Hospital. The medical group on file is IU Health Medical Group. Dmand AI also links Dr. Horstmann to 2 more medical groups, each named with a free account.

See all 5 affiliations for Dr. Horstmann

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

Dmand AI tracks the EHR system at Dr. Ellen S. Horstmann's practice

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

EHR by site
SiteEHR vendor and product
Sidney & Lois Eskenazi HospitalAvailable with a free account
+1 more site and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Ellen S. Horstmann is one of 1,275 emergency medicine physicians in Indiana

Emergency medicine is Dr. Horstmann's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Horstmann's licenses on file in 2 states: Indiana and Nebraska.

Specialties and state licenses

  • Emergency medicine, IndianaPrimaryLicense 01093892A · taxonomy 207P00000X
  • Pediatrics, NebraskaLicense 8597 · taxonomy 208000000X

Emergency medicine physicians near Dr. Horstmann

Counts of emergency 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. Ellen S. Horstmann billed Medicare for 15 services in 2024

CMS data shows 15 Medicare services from Dr. Horstmann across 1 procedure code in 2024, for 24 Medicare patients. Medicare paid $1,881 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202415
Medicare patients24
Paid by Medicare$1,881
Procedure codes1

Dr. Horstmann compared with the Indiana median for emergency medicine physicians, 2024

  • Dr. Horstmann
  • Indiana median
Medicare services
15vs 30495% below
Medicare patients
24vs 27791% below

Medians across 1,276 emergency medicine physicians in Indiana with Dmand AI profiles that report each measure.

Dr. Horstmann'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. Horstmann

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

Dr. Ellen S. Horstmann treated 24 Medicare patients in 2024, average age 61

CMS counts 24 Medicare patients who saw Dr. Horstmann in 2024. 63% of them have high blood pressure, and 58% have high cholesterol. 54% are also on Medicaid. Their average risk score is 1.21, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Horstmann's median patient age at 44, with 54% women.

Medicare patients, 202424
Average age61
Average risk score1.21
Also on Medicaid54%

Dr. Horstmann's Medicare patients by sex, 2024

  • Women1354%
  • Men1146%

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

  1. High blood pressure63%
  2. High cholesterol58%
  3. Anxiety46%

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

Dr. Horstmann's patients across all payers

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

Patient panel by age, all payers

Median age 44

Patient panel by sex, all payers

  • Women54%
  • Men46%

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

Dr. Ellen S. Horstmann wrote 55 Medicare Part D claims in 2024

In 2024, Dr. Horstmann wrote 55 Medicare Part D claims for 37 patients. 95% of them were for generic drugs.

Part D claims, 202455
Part D patients37

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

  • Generic52 claims95%
  • Brand-name and other3 claims5%

Drug classes CMS tracks in Dr. Horstmann's Part D claims, 2024

  • Opioids20%11 of 55 claims
  • Antibiotics24%13 of 55 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Dr. Ellen S. Horstmann takes part in Medicare

Dr. Horstmann 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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Sources for Dr. Ellen S. Horstmann'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 (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (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. Ellen S. Horstmann

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. Ellen S. Horstmann's NPI number?

Dr. Ellen S. Horstmann's NPI number is 1265093215. It was assigned on June 20, 2019, and it is active in the NPI Registry.

What kind of doctor is Dr. Ellen S. Horstmann?

Dr. Ellen S. Horstmann is an emergency medicine physician in Indianapolis, Indiana. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).

Where does Dr. Ellen S. Horstmann practice?

Dr. Horstmann practices at 720 Eskenazi Avenue, Indianapolis, IN 46202. Dr. Horstmann's primary practice is Sidney & Lois Eskenazi Hospital in Indianapolis, Indiana, part of Health & Hospital Corporation of Marion County. Dmand AI also links Dr. Horstmann to 2 medical groups.

What is Dr. Ellen S. Horstmann's office phone number?

The practice phone on file for Dr. Horstmann is (317) 880-4818.

What is Dr. Ellen S. Horstmann's medical license number?

Dr. Horstmann holds Indiana license 01093892A, one of the licenses on file in 2 states.

Which states has Dr. Ellen S. Horstmann been licensed in?

Dmand AI has state licenses on file for Dr. Horstmann in Indiana and Nebraska.

Which hospitals is Dr. Ellen S. Horstmann affiliated with?

Dr. Horstmann practices at Sidney & Lois Eskenazi Hospital in Indianapolis, Indiana. Dr. Horstmann is also affiliated with IU Health Ball Memorial Hospital.

What medical group is Dr. Ellen S. Horstmann part of?

Dr. Horstmann is linked to IU Health Medical Group. Dmand AI links Dr. Horstmann to 2 more medical groups.

Does Dr. Ellen S. Horstmann accept Medicare?

Yes. CMS data shows Dr. Horstmann billed Medicare for 15 services in 2024, and Dr. Horstmann accepts Medicare assignment.

How many Medicare patients does Dr. Ellen S. Horstmann see?

CMS counts 24 Medicare patients who saw Dr. Horstmann in 2024, with an average age of 61.

What services does Dr. Ellen S. Horstmann bill to Medicare?

In 2024, Dr. Horstmann's most billed Medicare services were emergency department visit (99285).

How long has Dr. Ellen S. Horstmann been practicing?

Dr. Horstmann graduated from medical school in 2017, 9 years ago.

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