Dr. Keith P. Leitzen, MD
- Medicare services, 2024
- 836
- Medicare patients, 2024
- 362
- Part D claims, 2024
- 593
- Publications
- 1
- MIPS score, 2024
- 95
- Practice address
- 1475 E Belvidere Rd, Grayslake, IL 60030
- Practice phone
- Call (219) 789-9176
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Lake Forest Endoscopy Center LLC
Grayslake, Illinois
Find Dr. Leitzen'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. Keith P. Leitzen is an otolaryngologist in Grayslake, Illinois
Dr. Leitzen practices at Lake Forest Endoscopy Center LLC in Grayslake, Illinois.
Dr. Leitzen's NPI, 1174754139, was assigned on August 7, 2009. Dr. Leitzen graduated from University of Minnesota Medical School in 2009. Dr. Leitzen holds Illinois license 036149517.
- NPI
- 1174754139NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4183854235
- NPI enumeration date
- August 7, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (219) 789-9176
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Keith P. Leitzen practices at Lake Forest Endoscopy Center LLC in Grayslake, Illinois
Dr. Leitzen's primary practice is Lake Forest Endoscopy Center LLC, at 1475 E Belvidere Rd, Grayslake, IL 60030 in Lake County. The practice phone is (219) 789-9176.
- Lake Forest Endoscopy Center LLC1475 E Belvidere Rd, Grayslake, IL 60030 · Lake CountyPhone(219) 789-9176
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Keith P. Leitzen is affiliated with 5 sites of care and 1 medical group
Dr. Leitzen's primary practice is Lake Forest Endoscopy Center LLC in Grayslake, Illinois. Dr. Leitzen is also affiliated with Northwestern Memorial Hospital. The medical group on file is Northwestern Medical Faculty Foundation. Dmand AI also links Dr. Leitzen to 2 more hospitals and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Keith P. Leitzen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Leitzen practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lake Forest Endoscopy Center LLC | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Keith P. Leitzen is one of 401 otolaryngologists in Illinois
Otolaryngology is Dr. Leitzen's primary specialty in the NPI Registry, under taxonomy code 207Y00000X. Dmand AI has Dr. Leitzen's licenses on file in 2 states: Illinois and Virginia.
Specialties and state licenses
- Otolaryngology, IllinoisPrimary
- Virginia license
Otolaryngologists near Dr. Leitzen
Counts of otolaryngologists 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. Keith P. Leitzen billed Medicare for 836 services in 2024
CMS data shows 836 Medicare services from Dr. Leitzen across 8 procedure codes in 2024, for 362 Medicare patients. Medicare paid $78,194 for them. Every service was in an office.
Dr. Leitzen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4662024: 464No change
- Surgery
- 2023: 3542024: 3725%
Dr. Leitzen compared with the Illinois median for otolaryngologists, 2024
- Dr. Leitzen
- Illinois median
- Medicare services
- 836vs 60339% above
- Medicare patients
- 362vs 29124% above
- Part D claims
- 495vs 1633.0 times
Medians across 384 otolaryngologists in Illinois with Dmand AI profiles that report each measure.
Dr. Leitzen'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Leitzen and other otolaryngologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Keith P. Leitzen treated 362 Medicare patients in 2024, average age 75
CMS counts 362 Medicare patients who saw Dr. Leitzen in 2024. The largest group is 65 to 74, with 169 patients. 75% of them have high cholesterol, and 72% have high blood pressure. 9% 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. Leitzen's median patient age at 63, with 57% women.
Dr. Leitzen's Medicare patients by age, 2024
Dr. Leitzen's Medicare patients by sex, 2024
- Women21860%
- Men14440%
Chronic conditions among Dr. Leitzen's Medicare patients, 2024
- High cholesterol75%
- High blood pressure72%
- Arthritis50%
- Ischemic heart disease29%
- Anxiety28%
- Diabetes26%
- Mood disorders25%
- Osteoporosis25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Leitzen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women57%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Keith P. Leitzen wrote 593 Medicare Part D claims in 2024
In 2024, Dr. Leitzen wrote 593 Medicare Part D claims for 204 patients. 99% of them were for generic drugs. CMS names the drug for 495 of them, across 7 drugs with 11 or more claims each, at $10,477 in total drug cost. In 2023, CMS named 397 claims across 8 drugs.
Dr. Leitzen's Part D claims by kind of drug, 2024
- Generic585 claims99%
- Brand-name and other8 claims1%
Dr. Leitzen'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. Leitzen's Part D claims, 2024
- Antibiotics5%31 of 593 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: 3972024: 49525%
Drugs named by CMS: 7 in 2024, 8 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
Dr. Keith P. Leitzen 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. Leitzen for performance year 2024, reported through an alternative payment model (APM). Dr. Leitzen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Leitzen as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Leitzen'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.
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Keith P. Leitzen has 1 publication on record
Dmand AI links 1 paper to Dr. Leitzen in 2013.
Recent publications by Dr. Leitzen
See who Dr. Leitzen researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Leitzen works with, so you can find a warm path to the right otolaryngologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Keith P. Leitzen received $2,622 in industry payments from 2016 to 2024
CMS Open Payments shows 22 general payments to Dr. Leitzen from 5 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 50% of the total. Entellus Medical, Inc. paid the most, $1,238.
General payments to Dr. Leitzen by program year, 2016 to 2024
General payments to Dr. Leitzen by kind, 2016 to 2024
- Food and beverage$1,32450%
- Travel and lodging$1,29850%
Companies that paid Dr. Leitzen the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Keith P. Leitzen graduated from University of Minnesota Medical School
Dr. Leitzen graduated from University of Minnesota Medical School in 2009.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Keith P. Leitzen'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 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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. Keith P. Leitzen
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. Keith P. Leitzen's NPI number?
Dr. Keith P. Leitzen's NPI number is 1174754139. It was assigned on August 7, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Keith P. Leitzen?
Dr. Keith P. Leitzen is an otolaryngologist in Grayslake, Illinois. The primary specialty in the NPI Registry is Otolaryngology Physician (taxonomy code 207Y00000X).
Where does Dr. Keith P. Leitzen practice?
Dr. Leitzen practices at 1475 E Belvidere Rd, Grayslake, IL 60030. Dr. Leitzen's primary practice is Lake Forest Endoscopy Center LLC in Grayslake, Illinois. Dmand AI also links Dr. Leitzen to 2 hospitals and 1 group practice or clinic.
What is Dr. Keith P. Leitzen's office phone number?
The practice phone on file for Dr. Leitzen is (219) 789-9176.
What is Dr. Keith P. Leitzen's medical license number?
Dr. Leitzen holds Illinois license 036149517, one of the licenses on file in 2 states.
Which states has Dr. Keith P. Leitzen been licensed in?
Dmand AI has state licenses on file for Dr. Leitzen in Illinois and Virginia.
Which hospitals is Dr. Keith P. Leitzen affiliated with?
Dr. Leitzen is affiliated with Northwestern Memorial Hospital. Dmand AI links Dr. Leitzen to 2 more hospitals.
What medical group is Dr. Keith P. Leitzen part of?
Dr. Leitzen is linked to Northwestern Medical Faculty Foundation.
Does Dr. Keith P. Leitzen accept Medicare?
Yes. CMS data shows Dr. Leitzen billed Medicare for 836 services in 2024, and Dr. Leitzen accepts Medicare assignment.
Does Dr. Keith P. Leitzen offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Leitzen as offering telehealth services.
Show 8 more questionsShow fewer questions
What is Dr. Keith P. Leitzen's MIPS score?
Dr. Leitzen'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. Keith P. Leitzen see?
CMS counts 362 Medicare patients who saw Dr. Leitzen in 2024, with an average age of 75.
What services does Dr. Keith P. Leitzen bill to Medicare?
In 2024, Dr. Leitzen's most billed Medicare services were office visit, established patient (99214), surgery: ear (69210) and surgery: lungs and airway (31575).
Where did Dr. Keith P. Leitzen go to medical school?
Dr. Leitzen graduated from University of Minnesota Medical School in 2009.
What drugs does Dr. Keith P. Leitzen prescribe most?
In 2024 Medicare Part D data, Dr. Leitzen's most prescribed drugs by claims were Azelastine HCl, Fluticasone Propionate and Ipratropium Bromide.
Has Dr. Keith P. Leitzen received payments from drug or device companies?
CMS Open Payments shows $2,622 in general payments to Dr. Leitzen from 5 companies from 2016 to 2024. The largest total came from Entellus Medical, Inc.
How long has Dr. Keith P. Leitzen been practicing?
Dr. Leitzen graduated from medical school in 2009, 17 years ago.
Does Dr. Keith P. Leitzen do research?
Dmand AI links 1 publication to Dr. Leitzen.
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