Emergency Medical ServicesEmergency Service, HospitalHospitals
Dr. Nicholas G. Ludmer, MD
NPI1861811523PAC ID8224255955
- Medicare services, 2024
- 360
- Medicare patients, 2024
- 306
- Part D claims, 2024
- 24
- Publications
- 3
- Hospital affiliations
- 1
- Practice address
- 5721 S Maryland Ave, Chicago, IL 60637
- Practice phone
- Call (773) 702-1530
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Comer Children's Hospital - Hyde Park
Chicago, Illinois
Find Dr. Ludmer'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. Nicholas G. Ludmer is an emergency medicine physician in Chicago, Illinois
Dr. Ludmer practices at Comer Children's Hospital - Hyde Park in Chicago, Illinois.
Dr. Ludmer's NPI, 1861811523, was assigned on April 9, 2014. Dr. Ludmer graduated from University of Chicago, Pritzker School of Medicine in 2014. Dr. Ludmer holds Illinois license 036.146987.
NPI and contact details
- NPI
- 1861811523NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8224255955
- NPI enumeration date
- April 9, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (773) 702-1530
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nicholas G. Ludmer practices at Comer Children's Hospital - Hyde Park in Chicago, Illinois
Dr. Ludmer's primary practice is Comer Children's Hospital - Hyde Park, at 5721 S Maryland Ave, Chicago, IL 60637 in Cook County. The practice phone is (773) 702-1530.
- Comer Children's Hospital - Hyde Park5721 S Maryland Ave, Chicago, IL 60637 · Cook CountyPhone(773) 702-1530
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Nicholas G. Ludmer is affiliated with 2 sites of care and 2 medical groups
Dr. Ludmer's primary practice is Comer Children's Hospital - Hyde Park in Chicago, Illinois. Dr. Ludmer is also affiliated with University of Chicago Medical Center. The medical group on file is UChicago Medicine Physicians. Dmand AI also links Dr. Ludmer to 1 more medical group, named with a free account.
Comer Children's Hospital - Hyde ParkPrimary
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. Nicholas G. Ludmer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ludmer practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Comer Children's Hospital - Hyde Park | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nicholas G. Ludmer is one of 2,385 emergency medicine physicians in Illinois
Emergency medicine is Dr. Ludmer's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Ludmer is licensed in Illinois.
Specialties and state licenses
- Emergency medicine, IllinoisPrimary
Emergency medicine physicians near Dr. Ludmer
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. Nicholas G. Ludmer billed Medicare for 360 services in 2024
CMS data shows 360 Medicare services from Dr. Ludmer across 6 procedure codes in 2024, for 306 Medicare patients. Medicare paid $44,140 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024360
Medicare patients306
Paid by Medicare$44,140
Procedure codes6
Dr. Ludmer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3412024: 3235%
- Tests and treatments
- 2023: 02024: 20
- Imaging
- 2023: 02024: 17
Dr. Ludmer compared with the Illinois median for emergency medicine physicians, 2024
- Dr. Ludmer
- Illinois median
- Medicare services
- 360vs 27431% above
- Medicare patients
- 306vs 27312% above
Medians across 2,281 emergency medicine physicians in Illinois with Dmand AI profiles that report each measure.
Dr. Ludmer'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.
Need commercial claims for Dr. Ludmer?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ludmer and other emergency medicine physicians in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nicholas G. Ludmer treated 306 Medicare patients in 2024, average age 71
CMS counts 306 Medicare patients who saw Dr. Ludmer in 2024. The largest group is 65 to 74, with 112 patients. 75% of them have high blood pressure, and 71% have high cholesterol. 66% are also on Medicaid. Their average risk score is 3.19, 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. Ludmer's median patient age at 69, with 63% women.
Medicare patients, 2024306
Average age71
Average risk score3.19
Also on Medicaid66%
Dr. Ludmer's Medicare patients by age, 2024
Dr. Ludmer's Medicare patients by sex, 2024
- Women19463%
- Men11237%
Chronic conditions among Dr. Ludmer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol71%
- Arthritis60%
- Chronic kidney disease50%
- Diabetes48%
- Heart failure44%
- Ischemic heart disease40%
- Mood disorders36%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ludmer'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
- Women63%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nicholas G. Ludmer wrote 24 Medicare Part D claims in 2024
In 2024, Dr. Ludmer wrote 24 Medicare Part D claims for 17 patients. 96% of them were for generic drugs.
Part D claims, 202424
Part D patients17
Dr. Ludmer's Part D claims by kind of drug, 2024
- Generic23 claims96%
- Brand-name and other1 claims4%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Nicholas G. Ludmer takes part in Medicare
Dr. Ludmer 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. Nicholas G. Ludmer has 3 publications on record
Dmand AI links 3 papers to Dr. Ludmer, published from 2015 to 2023. Dr. Ludmer's most frequent co-authors are Shahab A. Akhter, MD and Alice Kidder Bukhman, MD, MPH.
Papers3
Years published2015 to 2023
Dr. Ludmer's papers by year, 2015 to 2023
Dr. Ludmer's most frequent co-authors
Recent publications by Dr. Ludmer
BMC Health Serv Res
COVID-19Disease OutbreaksHealth Personnel
AcetophenonesAdrenergic beta-AgonistsAngiotensin II
See who Dr. Ludmer researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Ludmer works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Nicholas G. Ludmer received $14 in industry payments in 2022
CMS Open Payments shows 1 general payment to Dr. Ludmer from 1 drug or device company in 2022. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $14.
Companies that paid Dr. Ludmer the most, 2022 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Nicholas G. Ludmer graduated from University of Chicago, Pritzker School of Medicine
Dr. Ludmer graduated from University of Chicago, Pritzker School of Medicine in 2014.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Nicholas G. Ludmer'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 (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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Nicholas G. Ludmer
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. Nicholas G. Ludmer's NPI number?
Dr. Nicholas G. Ludmer's NPI number is 1861811523. It was assigned on April 9, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Nicholas G. Ludmer?
Dr. Nicholas G. Ludmer is an emergency medicine physician in Chicago, Illinois. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Nicholas G. Ludmer practice?
Dr. Ludmer practices at 5721 S Maryland Ave, Chicago, IL 60637. Dr. Ludmer's primary practice is Comer Children's Hospital - Hyde Park in Chicago, Illinois. Dmand AI also links Dr. Ludmer to 1 medical group.
What is Dr. Nicholas G. Ludmer's office phone number?
The practice phone on file for Dr. Ludmer is (773) 702-1530.
What is Dr. Nicholas G. Ludmer's medical license number?
Dr. Ludmer holds Illinois license 036.146987.
Which hospitals is Dr. Nicholas G. Ludmer affiliated with?
Dr. Ludmer is affiliated with University of Chicago Medical Center.
What medical group is Dr. Nicholas G. Ludmer part of?
Dr. Ludmer is linked to UChicago Medicine Physicians. Dmand AI links Dr. Ludmer to 1 more medical group.
Does Dr. Nicholas G. Ludmer accept Medicare?
Yes. CMS data shows Dr. Ludmer billed Medicare for 360 services in 2024, and Dr. Ludmer accepts Medicare assignment.
How many Medicare patients does Dr. Nicholas G. Ludmer see?
CMS counts 306 Medicare patients who saw Dr. Ludmer in 2024, with an average age of 71.
What services does Dr. Nicholas G. Ludmer bill to Medicare?
In 2024, Dr. Ludmer's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and emergency department visit (99283).
Show 5 more questionsShow fewer questions
Where did Dr. Nicholas G. Ludmer go to medical school?
Dr. Ludmer graduated from University of Chicago, Pritzker School of Medicine in 2014.
Has Dr. Nicholas G. Ludmer received payments from drug or device companies?
CMS Open Payments shows $14 in general payments to Dr. Ludmer from 1 company from 2022 to 2022. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Nicholas G. Ludmer been practicing?
Dr. Ludmer graduated from medical school in 2014, 12 years ago.
Does Dr. Nicholas G. Ludmer do research?
Dmand AI links 3 publications to Dr. Ludmer, published from 2015 to 2023.
Who does Dr. Nicholas G. Ludmer publish with?
Dr. Ludmer's most frequent co-authors are Shahab A. Akhter, MD (1 shared paper) and Alice Kidder Bukhman, MD, MPH (1 shared paper).
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