Dr. Paul A. Kay, MD
- Medicare services, 2024
- 1,806
- Medicare patients, 2024
- 595
- MIPS score, 2024
- 81
- Hospital affiliations
- 5
- Industry payments
- $15
- Practice address
- 1 St Elizabeth Blvd, O'Fallon, IL 62269
- Practice phone
- Call (217) 492-9651
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
HSHS St. Elizabeth's Hospital
O'Fallon, Illinois
Find Dr. Kay's professional email, personal email and mobile number
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Dr. Paul A. Kay is a pathologist in O'Fallon, Illinois
Dr. Kay practices at HSHS St. Elizabeth's Hospital in O'Fallon, Illinois.
Dr. Kay's NPI, 1780611566, was assigned on June 27, 2006. Dr. Kay graduated from Mayo Medical School in 1995. Dr. Kay holds Illinois license 036110475.
- NPI
- 1780611566NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9537131149
- NPI enumeration date
- June 27, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (217) 492-9651
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 57
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Paul A. Kay practices at HSHS St. Elizabeth's Hospital in O'Fallon, Illinois
Dr. Kay's primary practice is HSHS St. Elizabeth's Hospital, at 1 St Elizabeth Blvd, O'Fallon, IL 62269 in Saint Clair County. The practice phone is (217) 492-9651.
- HSHS St. Elizabeth's Hospital1 St Elizabeth Blvd, O'Fallon, IL 62269 · Saint Clair CountyPhone(217) 492-9651
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Paul A. Kay is affiliated with 6 sites of care and 1 medical group
Dr. Kay's primary practice is HSHS St. Elizabeth's Hospital in O'Fallon, Illinois. Dr. Kay is also affiliated with HSHS St. Elizabeth's Hospital. The medical group on file is Associated Pathologists Ltd. Dmand AI also links Dr. Kay to 4 more hospitals, each named with a free account.
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. Paul A. Kay's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kay practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| HSHS St. Elizabeth's Hospital | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Paul A. Kay is one of 487 pathologists in Illinois
Anatomic pathology and clinical pathology is Dr. Kay's primary specialty in the NPI Registry, under taxonomy code 207ZP0102X. Dr. Kay is licensed in Illinois.
Specialties and state licenses
- Anatomic pathology and clinical pathology, IllinoisPrimary
Pathologists near Dr. Kay
Counts of pathologists 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. Paul A. Kay billed Medicare for 1,806 services in 2024
CMS data shows 1,806 Medicare services from Dr. Kay across 13 procedure codes in 2024, for 595 Medicare patients. Medicare paid $49,641 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Kay's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 1,6572024: 1,8069%
Dr. Kay compared with the Illinois median for pathologists, 2024
- Dr. Kay
- Illinois median
- Medicare services
- 1,806vs 1,38930% above
- Medicare patients
- 595vs 573Close to median
Medians across 481 pathologists in Illinois with Dmand AI profiles that report each measure.
Dr. Kay'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. Kay and other pathologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Paul A. Kay treated 595 Medicare patients in 2024, average age 73
CMS counts 595 Medicare patients who saw Dr. Kay in 2024. The largest group is 65 to 74, with 306 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 14% are also on Medicaid. Their average risk score is 1.40, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Kay's median patient age at 39, with 63% women.
Dr. Kay's Medicare patients by age, 2024
Dr. Kay's Medicare patients by sex, 2024
- Women31553%
- Men28047%
Chronic conditions among Dr. Kay's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis49%
- Diabetes41%
- Ischemic heart disease38%
- Chronic kidney disease35%
- Cancer32%
- Anxiety26%
Share of Medicare patients with each condition. A patient can have several.
Dr. Kay's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 39
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. Paul A. Kay scored 81 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 81 out of 100 for Dr. Kay for performance year 2024, reported as part of a group. Dr. Kay accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Kay's MIPS scores, performance year 2024
- 81of 100Final score
- 61.6of 100Quality
- 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. Paul A. Kay received $15 in industry payments in 2020
CMS Open Payments shows 1 general payment to Dr. Kay from 1 drug or device company in 2020. Food and beverage make up the largest share, 100% of the total. Ortho-Clinical Diagnostics, Inc. paid the most, $15.
Companies that paid Dr. Kay the most, 2020 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Paul A. Kay graduated from Mayo Medical School
Dr. Kay graduated from Mayo Medical School in 1995.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Paul A. Kay'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) |
| 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) |
| 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. Paul A. Kay
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. Paul A. Kay's NPI number?
Dr. Paul A. Kay's NPI number is 1780611566. It was assigned on June 27, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Paul A. Kay?
Dr. Paul A. Kay is a pathologist in O'Fallon, Illinois. The primary specialty in the NPI Registry is Anatomic Pathology & Clinical Pathology Physician (taxonomy code 207ZP0102X).
Where does Dr. Paul A. Kay practice?
Dr. Kay practices at 1 St Elizabeth Blvd, O'Fallon, IL 62269. Dr. Kay's primary practice is HSHS St. Elizabeth's Hospital in O'Fallon, Illinois. Dmand AI also links Dr. Kay to 4 hospitals.
What is Dr. Paul A. Kay's office phone number?
The practice phone on file for Dr. Kay is (217) 492-9651.
What is Dr. Paul A. Kay's medical license number?
Dr. Kay holds Illinois license 036110475.
Which hospitals is Dr. Paul A. Kay affiliated with?
Dr. Kay is affiliated with HSHS St. Elizabeth's Hospital. Dmand AI links Dr. Kay to 4 more hospitals.
What medical group is Dr. Paul A. Kay part of?
Dr. Kay is linked to Associated Pathologists Ltd.
Does Dr. Paul A. Kay accept Medicare?
Yes. CMS data shows Dr. Kay billed Medicare for 1,806 services in 2024, and Dr. Kay accepts Medicare assignment.
What is Dr. Paul A. Kay's MIPS score?
Dr. Kay's MIPS final score for performance year 2024 is 81 out of 100, reported as part of a group.
How many Medicare patients does Dr. Paul A. Kay see?
CMS counts 595 Medicare patients who saw Dr. Kay in 2024, with an average age of 73.
Show 4 more questionsShow fewer questions
What services does Dr. Paul A. Kay bill to Medicare?
In 2024, Dr. Kay's most billed Medicare services were lab and pathology test (88305), lab and pathology test (88341) and lab and pathology test (88342).
Where did Dr. Paul A. Kay go to medical school?
Dr. Kay graduated from Mayo Medical School in 1995.
Has Dr. Paul A. Kay received payments from drug or device companies?
CMS Open Payments shows $15 in general payments to Dr. Kay from 1 company from 2020 to 2020. The largest total came from Ortho-Clinical Diagnostics, Inc.
How long has Dr. Paul A. Kay been practicing?
Dr. Kay graduated from medical school in 1995, 31 years ago.
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