Dr. Karl Langner, DO
- Medicare services, 2024
- 661
- Medicare patients, 2024
- 186
- Part D claims, 2024
- 2,866
- Hospital affiliations
- 6
- Medical groups
- 2
- Practice address
- 355 Ridge Ave, Evanston, IL 60202
- Practice phone
- Call (847) 316-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Presence St. Francis Hospital- Evanston
Evanston, Illinois
Find Dr. Langner's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Karl Langner is a family medicine physician in Evanston, Illinois
Dr. Langner practices at Presence St. Francis Hospital- Evanston in Evanston, Illinois.
Dr. Langner's NPI, 1144616954, was assigned on April 8, 2015. Dr. Langner holds Illinois license 036-147588.
- NPI
- 1144616954NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3779837711
- NPI enumeration date
- April 8, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (847) 316-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Karl Langner practices at Presence St. Francis Hospital- Evanston in Evanston, Illinois
Dr. Langner's primary practice is Presence St. Francis Hospital- Evanston, at 355 Ridge Ave, Evanston, IL 60202 in Cook County. The practice phone is (847) 316-4000.
- Presence St. Francis Hospital- Evanston355 Ridge Ave, Evanston, IL 60202 · Cook CountyPhone(847) 316-4000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Karl Langner is affiliated with 8 sites of care and 2 medical groups
Dr. Langner's primary practice is Presence St. Francis Hospital- Evanston in Evanston, Illinois. Dr. Langner is also affiliated with Evanston Hospital. The medical group on file is Prime Healthcare Illinois Medical Group. Dmand AI also links Dr. Langner to 5 more hospitals, 1 group practice or clinic and 1 medical group, each named with a free account.
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. Karl Langner's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Langner practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Presence St. Francis Hospital- Evanston | Available with a free account |
| +7 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Karl Langner is one of 5,105 family medicine physicians in Illinois
Family medicine is Dr. Langner's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Langner is licensed in Illinois.
Specialties and state licenses
- Family medicine, IllinoisPrimary
Family medicine physicians near Dr. Langner
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. Karl Langner billed Medicare for 661 services in 2024
CMS data shows 661 Medicare services from Dr. Langner across 9 procedure codes in 2024, for 186 Medicare patients. Medicare paid $43,207 for them. Every service was in an office.
Dr. Langner's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2112024: 36573%
- Other services
- 2023: 492024: 229367%
- Tests and treatments
- 2023: 322024: 5572%
- Surgery
- 2023: 142024: 1214%
Dr. Langner compared with the Illinois median for family medicine physicians, 2024
- Dr. Langner
- Illinois median
- Medicare services
- 661vs 35686% above
- Medicare patients
- 186vs 16016% above
- Part D claims
- 2,319vs 6183.8 times
Medians across 5,015 family medicine physicians in Illinois with Dmand AI profiles that report each measure.
Dr. Langner'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Karl Langner treated 186 Medicare patients in 2024, average age 73
CMS counts 186 Medicare patients who saw Dr. Langner in 2024. The largest group is 65 to 74, with 83 patients. 68% of them have high blood pressure, and 68% have high cholesterol. 24% are also on Medicaid. Their average risk score is 1.35, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Langner's median patient age at 60, with 52% women.
Dr. Langner's Medicare patients by age, 2024
Dr. Langner's Medicare patients by sex, 2024
- Women9652%
- Men9048%
Chronic conditions among Dr. Langner's Medicare patients, 2024
- High blood pressure68%
- High cholesterol68%
- Arthritis53%
- Diabetes30%
- Ischemic heart disease28%
- Anxiety26%
- Mood disorders26%
- Depression22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Langner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women52%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Karl Langner wrote 2,866 Medicare Part D claims in 2024
In 2024, Dr. Langner wrote 2,866 Medicare Part D claims for 348 patients. 87% of them were for generic drugs. CMS names the drug for 2,319 of them, across 74 drugs with 11 or more claims each, at $233,434 in total drug cost. In 2023, CMS named 1,329 claims across 52 drugs.
Dr. Langner's Part D claims by kind of drug, 2024
- Generic2,485 claims87%
- Brand-name357 claims12%
- Other24 claims1%
Dr. Langner'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. Langner's Part D claims, 2024
- Opioids1%28 of 2,866 claims
- Antibiotics3%89 of 2,866 claims
- Antipsychotics, patients 65 and over1%16 of 2,866 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: 1,3292024: 2,31974%
Drugs named by CMS: 74 in 2024, 52 in 2023.
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. Karl Langner takes part in Medicare
Dr. Langner 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. Karl Langner's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Karl Langner
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. Karl Langner's NPI number?
Dr. Karl Langner's NPI number is 1144616954. It was assigned on April 8, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Karl Langner?
Dr. Karl Langner is a family medicine physician in Evanston, Illinois. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Karl Langner practice?
Dr. Langner practices at 355 Ridge Ave, Evanston, IL 60202. Dr. Langner's primary practice is Presence St. Francis Hospital- Evanston in Evanston, Illinois. Dmand AI also links Dr. Langner to 5 hospitals, 1 group practice or clinic and 1 medical group.
What is Dr. Karl Langner's office phone number?
The practice phone on file for Dr. Langner is (847) 316-4000.
What is Dr. Karl Langner's medical license number?
Dr. Langner holds Illinois license 036-147588.
Which hospitals is Dr. Karl Langner affiliated with?
Dr. Langner is affiliated with Evanston Hospital. Dmand AI links Dr. Langner to 5 more hospitals.
What medical group is Dr. Karl Langner part of?
Dr. Langner is linked to Prime Healthcare Illinois Medical Group. Dmand AI links Dr. Langner to 1 more medical group.
Does Dr. Karl Langner accept Medicare?
Yes. CMS data shows Dr. Langner billed Medicare for 661 services in 2024, and Dr. Langner accepts Medicare assignment.
How many Medicare patients does Dr. Karl Langner see?
CMS counts 186 Medicare patients who saw Dr. Langner in 2024, with an average age of 73.
What services does Dr. Karl Langner bill to Medicare?
In 2024, Dr. Langner's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and office visit, established patient (99213).
What drugs does Dr. Karl Langner prescribe most?
In 2024 Medicare Part D data, Dr. Langner's most prescribed drugs by claims were Fluticasone Propionate, Atorvastatin Calcium and Losartan Potassium.
How long has Dr. Karl Langner been practicing?
Dr. Langner graduated from medical school in 2015, 11 years ago.
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