Adv Otorhinolaryngol
ForecastingSleep Apnea Syndromes
Dr. Lauren Bonzelaar, MD, MS
NPI1396109153PAC ID6305132275
- Medicare services, 2024
- 152
- Medicare patients, 2024
- 296
- Publications
- 9
- Clinical trials
- 1
- MIPS score, 2024
- 95
- Practice address
- 251 E Huron St, Chicago, IL 60611
- Practice phone
- Call (312) 926-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Bonzelaar's professional email, personal email and mobile number
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Dr. Lauren Bonzelaar is an anesthesiologist in Chicago, Illinois
Dr. Bonzelaar practices at Northwestern Memorial Hospital in Chicago, Illinois, part of Northwestern Memorial HealthCare.
Dr. Bonzelaar's NPI, 1396109153, was assigned on April 7, 2016. Dr. Bonzelaar graduated from R Franklin University of Med & Sci/Chicago Medical School in 2015. Dr. Bonzelaar holds Illinois license 036.149779.
NPI and contact details
- NPI
- 1396109153NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6305132275
- NPI enumeration date
- April 7, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (312) 926-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Lauren Bonzelaar practices at Northwestern Memorial Hospital in Chicago, Illinois
Dr. Bonzelaar's primary practice is Northwestern Memorial Hospital, at 251 E Huron St, Chicago, IL 60611 in Cook County. The practice phone is (312) 926-2000.
- Northwestern Memorial Hospital251 E Huron St, Chicago, IL 60611 · Cook CountyPhone(312) 926-2000
Source: Dmand AI Affiliation Data
Dr. Lauren Bonzelaar is affiliated with 1 site of care and 2 medical groups
Dr. Bonzelaar's primary practice is Northwestern Memorial Hospital in Chicago, Illinois, part of Northwestern Memorial HealthCare. The medical group on file is Northwestern Medical Faculty Foundation. Dmand AI also links Dr. Bonzelaar to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Lauren Bonzelaar's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bonzelaar practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwestern Memorial Hospital | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Northwestern Memorial HealthCare and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Lauren Bonzelaar is one of 1,887 anesthesiologists in Illinois
Anesthesiology is Dr. Bonzelaar's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Bonzelaar is licensed in Illinois.
Specialties and state licenses
- Anesthesiology, IllinoisPrimary
Anesthesiologists near Dr. Bonzelaar
Counts of anesthesiologists with a Dmand AI profile, by place and practice. Each opens the list.
1,887anesthesiologists in Illinois591anesthesiologists in Chicago88anesthesiologists at Northwestern Memorial Hospital
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Lauren Bonzelaar billed Medicare for 152 services in 2024
CMS data shows 152 Medicare services from Dr. Bonzelaar across 6 procedure codes in 2024, for 296 Medicare patients. Medicare paid $11,164 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024152
Medicare patients296
Paid by Medicare$11,164
Procedure codes6
Dr. Bonzelaar's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 172024: 152794%
- Surgery
- 2023: 142024: 0100%
Dr. Bonzelaar compared with the Illinois median for anesthesiologists, 2024
- Dr. Bonzelaar
- Illinois median
- Medicare services
- 152vs 9167% above
- Medicare patients
- 296vs 15789% above
Medians across 1,742 anesthesiologists in Illinois with Dmand AI profiles that report each measure.
Dr. Bonzelaar'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. Lauren Bonzelaar treated 296 Medicare patients in 2024, average age 72
CMS counts 296 Medicare patients who saw Dr. Bonzelaar in 2024. The largest group is 65 to 74, with 130 patients. 75% of them have high cholesterol, and 68% have high blood pressure. 14% are also on Medicaid. Their average risk score is 1.79, 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. Bonzelaar's median patient age at 58, with 72% women.
Medicare patients, 2024296
Average age72
Average risk score1.79
Also on Medicaid14%
Dr. Bonzelaar's Medicare patients by age, 2024
Dr. Bonzelaar's Medicare patients by sex, 2024
- Women14950%
- Men14750%
Chronic conditions among Dr. Bonzelaar's Medicare patients, 2024
- High cholesterol75%
- High blood pressure68%
- Arthritis47%
- Ischemic heart disease33%
- Diabetes31%
- Anxiety29%
- Cancer27%
- Chronic kidney disease25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Bonzelaar's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women72%
- Men26%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Lauren Bonzelaar scored 95 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Dr. Bonzelaar for performance year 2024, reported through an alternative payment model (APM). Dr. Bonzelaar accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Bonzelaar's MIPS scores, performance year 2024
- 95of 100Final score
- 83of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Lauren Bonzelaar has 9 publications on record
Dmand AI links 9 papers to Dr. Bonzelaar, published from 2016 to 2017. 2017 was the busiest year, with 6. The most frequent topics are Sleep Apnea, Obstructive, Postoperative Complications and Hyperparathyroidism. Dr. Bonzelaar has published most often in Laryngoscope. Dr. Bonzelaar's most frequent co-authors are Michelle S. Hwang, MD and Michael Friedman, MD.
Papers9
Years published2016 to 2017
Topics Dr. Bonzelaar writes about most
- Sleep Apnea, Obstructive
- Postoperative Complications
- Hyperparathyroidism
- Morbidity
- Otorhinolaryngologic Surgical Procedures
- Palate, Soft
- Parathyroidectomy
- Pharynx
Dr. Bonzelaar's most frequent co-authors
Recent publications by Dr. Bonzelaar
Am J Otolaryngol
HyperparathyroidismParathyroidectomy
Otolaryngol Head Neck Surg
MorbidityOtorhinolaryngologic Surgical ProceduresPalate, Soft
AdenomaFibromaHyperparathyroidism
See who Dr. Bonzelaar researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Bonzelaar works with, so you can find a warm path to the right anesthesiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Lauren Bonzelaar has worked on 1 clinical trial
Dmand AI links Dr. Bonzelaar to 1 clinical trial. Conditions studied include Hip Fractures and Femoral Fractures.
Conditions in Dr. Bonzelaar's trials
- Hip Fractures
- Femoral Fractures
Investigators on the most trials with Dr. Bonzelaar
Recent clinical trials with Dr. Bonzelaar
Hip FracturesFemoral FracturesNormal salineRocuroniumSugammadex
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Lauren Bonzelaar received $39 in industry payments from 2022 to 2023
CMS Open Payments shows 2 general payments to Dr. Bonzelaar from 2 drug and device companies from 2022 to 2023. Food and beverage make up the largest share, 100% of the total. Edwards Lifesciences Corporation paid the most, $22.
General payments to Dr. Bonzelaar by program year, 2022 to 2023
Companies that paid Dr. Bonzelaar the most, 2022 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Lauren Bonzelaar graduated from R Franklin University of Med & Sci/Chicago Medical School
Dr. Bonzelaar graduated from R Franklin University of Med & Sci/Chicago Medical School in 2015.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Lauren Bonzelaar'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (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 |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| 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. Lauren Bonzelaar
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. Lauren Bonzelaar's NPI number?
Dr. Lauren Bonzelaar's NPI number is 1396109153. It was assigned on April 7, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Lauren Bonzelaar?
Dr. Lauren Bonzelaar is an anesthesiologist in Chicago, Illinois. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Lauren Bonzelaar practice?
Dr. Bonzelaar practices at 251 E Huron St, Chicago, IL 60611. Dr. Bonzelaar's primary practice is Northwestern Memorial Hospital in Chicago, Illinois, part of Northwestern Memorial HealthCare. Dmand AI also links Dr. Bonzelaar to 1 medical group.
What is Dr. Lauren Bonzelaar's office phone number?
The practice phone on file for Dr. Bonzelaar is (312) 926-2000.
What is Dr. Lauren Bonzelaar's medical license number?
Dr. Bonzelaar holds Illinois license 036.149779.
Which hospitals is Dr. Lauren Bonzelaar affiliated with?
Dr. Bonzelaar practices at Northwestern Memorial Hospital in Chicago, Illinois.
What medical group is Dr. Lauren Bonzelaar part of?
Dr. Bonzelaar is linked to Northwestern Medical Faculty Foundation. Dmand AI links Dr. Bonzelaar to 1 more medical group.
Does Dr. Lauren Bonzelaar accept Medicare?
Yes. CMS data shows Dr. Bonzelaar billed Medicare for 152 services in 2024, and Dr. Bonzelaar accepts Medicare assignment.
What is Dr. Lauren Bonzelaar's MIPS score?
Dr. Bonzelaar's MIPS final score for performance year 2024 is 95 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Lauren Bonzelaar see?
CMS counts 296 Medicare patients who saw Dr. Bonzelaar in 2024, with an average age of 72.
Show 6 more questionsShow fewer questions
What services does Dr. Lauren Bonzelaar bill to Medicare?
In 2024, Dr. Bonzelaar's most billed Medicare services were anesthesia (00142), anesthesia (00731) and anesthesia (00811).
Where did Dr. Lauren Bonzelaar go to medical school?
Dr. Bonzelaar graduated from R Franklin University of Med & Sci/Chicago Medical School in 2015.
Has Dr. Lauren Bonzelaar received payments from drug or device companies?
CMS Open Payments shows $39 in general payments to Dr. Bonzelaar from 2 companies from 2022 to 2023. The largest total came from Edwards Lifesciences Corporation.
How long has Dr. Lauren Bonzelaar been practicing?
Dr. Bonzelaar graduated from medical school in 2015, 11 years ago.
Does Dr. Lauren Bonzelaar do research?
Dmand AI links 9 publications to Dr. Bonzelaar, published from 2016 to 2017. Dr. Bonzelaar has worked on 1 clinical trial.
Who does Dr. Lauren Bonzelaar publish with?
Dr. Bonzelaar's most frequent co-authors are Michelle S. Hwang, MD (3 shared papers) and Michael Friedman, MD (2 shared papers).
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