Dr. Katherine V. Bayer, MD
- Medicare services, 2024
- 1,800
- Medicare patients, 2024
- 385
- Part D claims, 2024
- 242
- MIPS score, 2024
- 95
- Hospital affiliations
- 3
- Practice address
- 6155 W Grand Ave, Gurnee, IL 60031
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Northwestern Lake Forest Hospital - Gurnee HOPD
Acute Care Hospital outpatient department · Gurnee, Illinois
Find Dr. Bayer's professional email, personal email and mobile number
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Dr. Katherine V. Bayer is an emergency medicine physician in Gurnee, Illinois
Dr. Bayer practices at Northwestern Lake Forest Hospital - Gurnee HOPD in Gurnee, Illinois.
Dr. Bayer's NPI, 1548587504, was assigned on April 29, 2010. Dr. Bayer graduated from Rush Medical College of Rush University in 2010. Dr. Bayer holds Illinois license 036.131241.
- NPI
- 1548587504NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6103067434
- NPI enumeration date
- April 29, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Katherine V. Bayer practices at Northwestern Lake Forest Hospital - Gurnee HOPD in Gurnee, Illinois
Dr. Bayer's primary practice is Northwestern Lake Forest Hospital - Gurnee HOPD, at 6155 W Grand Ave, Gurnee, IL 60031.
- Northwestern Lake Forest Hospital - Gurnee HOPD6155 W Grand Ave, Gurnee, IL 60031
Source: Dmand AI Affiliation Data
Dr. Katherine V. Bayer is affiliated with 5 sites of care and 2 medical groups
Dr. Bayer's primary practice is Northwestern Lake Forest Hospital - Gurnee HOPD in Gurnee, Illinois. Dr. Bayer is also affiliated with Northwestern Medicine Central DuPage Hospital. The medical group on file is Northwestern Medical Faculty Foundation. Dmand AI also links Dr. Bayer to 2 more hospitals, 1 group practice or clinic and 1 medical group, each named with a free account. Dr. Bayer's employer is on file too: a hospital.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Katherine V. Bayer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bayer practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwestern Lake Forest Hospital - Gurnee HOPD | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Katherine V. Bayer is one of 2,385 emergency medicine physicians in Illinois
Emergency medicine is Dr. Bayer's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Bayer is licensed in Illinois.
Specialties and state licenses
- Emergency medicine, IllinoisPrimary
Emergency medicine physicians near Dr. Bayer
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. Katherine V. Bayer billed Medicare for 1,800 services in 2024
CMS data shows 1,800 Medicare services from Dr. Bayer across 12 procedure codes in 2024, for 385 Medicare patients. Medicare paid $24,218 for them. Every service was in an office.
Dr. Bayer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 02024: 1,374
- Office and hospital visits
- 2023: 1932024: 1962%
- Lab and pathology
- 2023: 772024: 11853%
- Imaging
- 2023: 292024: 60107%
- Surgery
- 2023: 892024: 5242%
- Tests and treatments
- 2023: 122024: 0100%
Dr. Bayer compared with the Illinois median for emergency medicine physicians, 2024
- Dr. Bayer
- Illinois median
- Medicare services
- 1,800vs 2746.6 times
- Medicare patients
- 385vs 27341% above
- Part D claims
- 115vs 452.6 times
Medians across 2,281 emergency medicine physicians in Illinois with Dmand AI profiles that report each measure.
Dr. Bayer'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. Katherine V. Bayer treated 385 Medicare patients in 2024, average age 75
CMS counts 385 Medicare patients who saw Dr. Bayer in 2024. The largest group is 65 to 74, with 176 patients. 75% of them have high cholesterol, and 67% have high blood pressure. 6% are also on Medicaid. Their average risk score is 1.16, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Bayer's median patient age at 51, with 63% women.
Dr. Bayer's Medicare patients by age, 2024
Dr. Bayer's Medicare patients by sex, 2024
- Women23862%
- Men14738%
Chronic conditions among Dr. Bayer's Medicare patients, 2024
- High cholesterol75%
- High blood pressure67%
- Arthritis57%
- Anxiety29%
- Ischemic heart disease29%
- Mood disorders27%
- Osteoporosis24%
- Chronic kidney disease23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Bayer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 51
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. Katherine V. Bayer wrote 242 Medicare Part D claims in 2024
In 2024, Dr. Bayer wrote 242 Medicare Part D claims for 174 patients. 83% of them were for generic drugs. CMS names the drug for 115 of them, across 6 drugs with 11 or more claims each, at $616 in total drug cost. In 2023, CMS named 113 claims across 6 drugs.
Dr. Bayer's Part D claims by kind of drug, 2024
- Generic202 claims83%
- Brand-name27 claims11%
- Other13 claims5%
Dr. Bayer'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. Bayer's Part D claims, 2024
- Antibiotics47%114 of 242 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: 1132024: 1152%
Drugs named by CMS: 6 in 2024, 6 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. Katherine V. Bayer 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. Bayer for performance year 2024, reported through an alternative payment model (APM). Dr. Bayer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Bayer as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Bayer'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. Katherine V. Bayer graduated from Rush Medical College of Rush University
Dr. Bayer graduated from Rush Medical College of Rush University in 2010.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Katherine V. Bayer'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 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) |
| 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. Katherine V. Bayer
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. Katherine V. Bayer's NPI number?
Dr. Katherine V. Bayer's NPI number is 1548587504. It was assigned on April 29, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Katherine V. Bayer?
Dr. Katherine V. Bayer is an emergency medicine physician in Gurnee, Illinois. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Katherine V. Bayer practice?
Dr. Bayer practices at 6155 W Grand Ave, Gurnee, IL 60031. Dr. Bayer's primary practice is Northwestern Lake Forest Hospital - Gurnee HOPD in Gurnee, Illinois. Dmand AI also links Dr. Bayer to 2 hospitals, 1 group practice or clinic and 1 medical group.
What is Dr. Katherine V. Bayer's medical license number?
Dr. Bayer holds Illinois license 036.131241.
Which hospitals is Dr. Katherine V. Bayer affiliated with?
Dr. Bayer is affiliated with Northwestern Medicine Central DuPage Hospital. Dmand AI links Dr. Bayer to 2 more hospitals.
What medical group is Dr. Katherine V. Bayer part of?
Dr. Bayer is linked to Northwestern Medical Faculty Foundation. Dmand AI links Dr. Bayer to 1 more medical group.
Does Dr. Katherine V. Bayer accept Medicare?
Yes. CMS data shows Dr. Bayer billed Medicare for 1,800 services in 2024, and Dr. Bayer accepts Medicare assignment.
Does Dr. Katherine V. Bayer offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Bayer as offering telehealth services.
What is Dr. Katherine V. Bayer's MIPS score?
Dr. Bayer'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. Katherine V. Bayer see?
CMS counts 385 Medicare patients who saw Dr. Bayer in 2024, with an average age of 75.
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What services does Dr. Katherine V. Bayer bill to Medicare?
In 2024, Dr. Bayer's most billed Medicare services were medicare temporary code (Q9967), office visit, established patient (99214) and office visit, established patient (99213).
Where did Dr. Katherine V. Bayer go to medical school?
Dr. Bayer graduated from Rush Medical College of Rush University in 2010.
What drugs does Dr. Katherine V. Bayer prescribe most?
In 2024 Medicare Part D data, Dr. Bayer's most prescribed drugs by claims were Amoxicillin-Clavulanate Potass, Cephalexin and Nitrofurantoin Mono-Macro.
How long has Dr. Katherine V. Bayer been practicing?
Dr. Bayer graduated from medical school in 2010, 16 years ago.
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