Dr. Denise A. Monahan, MD
- Medicare services, 2024
- 558
- Medicare patients, 2024
- 328
- Part D claims, 2024
- 33
- Publications
- 2
- MIPS score, 2024
- 95
- Practice address
- 1000 N Westmoreland Rd, Lake Forest, IL 60045
- Practice phone
- Call (847) 234-5600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Northwestern Catherine Gratz Griffin Lake Forest Hospital
Lake Forest, Illinois
Find Dr. Monahan'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. Denise A. Monahan is a surgical oncologist in Lake Forest, Illinois
Dr. Monahan practices at Northwestern Catherine Gratz Griffin Lake Forest Hospital in Lake Forest, Illinois.
Dr. Monahan's NPI, 1114170289, was assigned on November 2, 2008. Dr. Monahan graduated from University of Miami, Lm Miller School of Medicine in 2007. Dr. Monahan holds Illinois license 036130761.
- NPI
- 1114170289NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6103081302
- NPI enumeration date
- November 2, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (847) 234-5600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Denise A. Monahan practices at Northwestern Catherine Gratz Griffin Lake Forest Hospital in Lake Forest, Illinois
Dr. Monahan's primary practice is Northwestern Catherine Gratz Griffin Lake Forest Hospital, at 1000 N Westmoreland Rd, Lake Forest, IL 60045 in Lake County. The practice phone is (847) 234-5600.
- Northwestern Catherine Gratz Griffin Lake Forest Hospital1000 N Westmoreland Rd, Lake Forest, IL 60045 · Lake CountyPhone(847) 234-5600
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Denise A. Monahan is affiliated with 4 sites of care and 1 medical group
Dr. Monahan's primary practice is Northwestern Catherine Gratz Griffin Lake Forest Hospital in Lake Forest, Illinois. Dr. Monahan is also affiliated with Northwestern Medicine Catherine Gratz Griffin Lake Forest Hospital. The medical group on file is Northwestern Medical Faculty Foundation. Dmand AI also links Dr. Monahan to 1 more hospital 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. Denise A. Monahan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Monahan practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwestern Catherine Gratz Griffin Lake Forest Hospital | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Denise A. Monahan is one of 56 surgical oncologists in Illinois
Surgical oncology is Dr. Monahan's primary specialty in the NPI Registry, under taxonomy code 2086X0206X. Dr. Monahan is licensed in Illinois.
Specialties and state licenses
- Surgical oncology, IllinoisPrimary
Surgical oncologists near Dr. Monahan
Counts of surgical oncologists 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. Denise A. Monahan billed Medicare for 558 services in 2024
CMS data shows 558 Medicare services from Dr. Monahan across 10 procedure codes in 2024, for 328 Medicare patients. Medicare paid $70,045 for them.
Dr. Monahan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4362024: 4738%
- Surgery
- 2023: 1262024: 8533%
Where Dr. Monahan's Medicare services took place, 2024
- In an office47385%
- In a facility8515%
Dr. Monahan compared with the Illinois median for surgical oncologists, 2024
- Dr. Monahan
- Illinois median
- Medicare services
- 558vs 2052.7 times
- Medicare patients
- 328vs 1063.1 times
- Part D claims
- 20vs 2520% below
Medians across 50 surgical oncologists in Illinois with Dmand AI profiles that report each measure.
Dr. Monahan'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. Monahan and other surgical oncologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Denise A. Monahan treated 328 Medicare patients in 2024, average age 74
CMS counts 328 Medicare patients who saw Dr. Monahan in 2024. The largest group is 65 to 74, with 188 patients. 75% of them have cancer, and 73% have high cholesterol. 3% are also on Medicaid. Their average risk score is 1.07, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Monahan's median patient age at 67, with 99% women.
Dr. Monahan's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Monahan's Medicare patients, 2024
- Cancer75%
- High cholesterol73%
- High blood pressure63%
- Arthritis43%
- Osteoporosis30%
- Anxiety23%
- Mood disorders23%
- Depression20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Monahan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women99%
- Men0%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Denise A. Monahan wrote 33 Medicare Part D claims in 2024
In 2024, Dr. Monahan wrote 33 Medicare Part D claims for 28 patients. 100% of them were for generic drugs. CMS names the drug for 20 of them, across 1 drug with 11 or more claims each, at $43 in total drug cost. In 2022, CMS named 14 claims across 1 drug.
Dr. Monahan'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. Monahan's Part D claims, 2024
- Opioids67%22 of 33 claims
- Antibiotics33%11 of 33 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, 2022 to 2024
- 2022
- 2024
- Claims for drugs CMS names
- 2022: 142024: 2043%
Drugs named by CMS: 1 in 2024, 1 in 2022.
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. Denise A. Monahan 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. Monahan for performance year 2024, reported through an alternative payment model (APM). Dr. Monahan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Monahan as offering telehealth. CMS counts 71 procedures of mastectomy by Dr. Monahan, more than 97% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Monahan'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.
Where Dr. Monahan ranks in Medicare procedure volume
- Mastectomy
- 97th percentile71 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
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. Denise A. Monahan has 2 publications on record
Dmand AI links 2 papers to Dr. Monahan, published from 2015 to 2023. Dr. Monahan's most frequent co-authors are Kevin P. Bethke, MD, Gregory A. Dumanian, MD and Megan Elizabeth Fracol, MD.
Dr. Monahan's most frequent co-authors
- Kevin P. Bethke, MD1 shared paper
- Gregory A. Dumanian, MD1 shared paper
- Megan Elizabeth Fracol, MD1 shared paper
Recent publications by Dr. Monahan
See who Dr. Monahan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Monahan works with, so you can find a warm path to the right surgical oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Denise A. Monahan received $19 in industry payments in 2022
CMS Open Payments shows 1 general payment to Dr. Monahan from 1 drug or device company in 2022. Food and beverage make up the largest share, 100% of the total. Gilead Sciences, Inc. paid the most, $19.
Companies that paid Dr. Monahan 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. Denise A. Monahan graduated from University of Miami, Lm Miller School of Medicine
Dr. Monahan graduated from University of Miami, Lm Miller School of Medicine in 2007.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Denise A. Monahan'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. Denise A. Monahan
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. Denise A. Monahan's NPI number?
Dr. Denise A. Monahan's NPI number is 1114170289. It was assigned on November 2, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Denise A. Monahan?
Dr. Denise A. Monahan is a surgical oncologist in Lake Forest, Illinois. The primary specialty in the NPI Registry is Surgical Oncology Physician (taxonomy code 2086X0206X).
Where does Dr. Denise A. Monahan practice?
Dr. Monahan practices at 1000 N Westmoreland Rd, Lake Forest, IL 60045. Dr. Monahan's primary practice is Northwestern Catherine Gratz Griffin Lake Forest Hospital in Lake Forest, Illinois. Dmand AI also links Dr. Monahan to 1 hospital and 1 group practice or clinic.
What is Dr. Denise A. Monahan's office phone number?
The practice phone on file for Dr. Monahan is (847) 234-5600.
What is Dr. Denise A. Monahan's medical license number?
Dr. Monahan holds Illinois license 036130761.
Which hospitals is Dr. Denise A. Monahan affiliated with?
Dr. Monahan is affiliated with Northwestern Medicine Catherine Gratz Griffin Lake Forest Hospital. Dmand AI links Dr. Monahan to 1 more hospital.
What medical group is Dr. Denise A. Monahan part of?
Dr. Monahan is linked to Northwestern Medical Faculty Foundation.
Does Dr. Denise A. Monahan accept Medicare?
Yes. CMS data shows Dr. Monahan billed Medicare for 558 services in 2024, and Dr. Monahan accepts Medicare assignment.
Does Dr. Denise A. Monahan offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Monahan as offering telehealth services.
What is Dr. Denise A. Monahan's MIPS score?
Dr. Monahan's MIPS final score for performance year 2024 is 95 out of 100, reported through an alternative payment model (APM).
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Denise A. Monahan see?
CMS counts 328 Medicare patients who saw Dr. Monahan in 2024, with an average age of 74.
What services does Dr. Denise A. Monahan bill to Medicare?
In 2024, Dr. Monahan's most billed Medicare services were office visit, established patient (99213), office visit, new patient (99205) and surgery: skin and soft tissue (19301).
Where did Dr. Denise A. Monahan go to medical school?
Dr. Monahan graduated from University of Miami, Lm Miller School of Medicine in 2007.
What drugs does Dr. Denise A. Monahan prescribe most?
In 2024 Medicare Part D data, Dr. Monahan's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
Has Dr. Denise A. Monahan received payments from drug or device companies?
CMS Open Payments shows $19 in general payments to Dr. Monahan from 1 company from 2022 to 2022. The largest total came from Gilead Sciences, Inc.
How long has Dr. Denise A. Monahan been practicing?
Dr. Monahan graduated from medical school in 2007, 19 years ago.
Does Dr. Denise A. Monahan do research?
Dmand AI links 2 publications to Dr. Monahan, published from 2015 to 2023.
Who does Dr. Denise A. Monahan publish with?
Dr. Monahan's most frequent co-authors are Kevin P. Bethke, MD (1 shared paper), Gregory A. Dumanian, MD (1 shared paper) and Megan Elizabeth Fracol, MD (1 shared paper).
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