Dr. Robert A. Ayres, MD
- Medicare patients, 2024
- 11
- Part D claims, 2024
- 1,034
- Hospital affiliations
- 6
- Industry payments
- $332
- Medical groups
- 3
- Practice address
- One Saint Joseph Drive, Lexington, KY 40504
- Practice phone
- Call (859) 313-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Ayres' 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. Robert A. Ayres is a hospitalist in Lexington, Kentucky
Dr. Ayres practices at Saint Joseph Hospital in Lexington, Kentucky, part of CommonSpirit Health.
Dr. Ayres' NPI, 1609507789, was assigned on June 21, 2022. Dr. Ayres holds Indiana license 01091255A.
- NPI
- 1609507789NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4880073659
- NPI enumeration date
- June 21, 2022
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (859) 313-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 30
- Medical school graduation
- 2022
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert A. Ayres practices at 2 locations in Lexington, Kentucky
Dr. Ayres' primary practice is Saint Joseph Hospital, at One Saint Joseph Drive, Lexington, KY 40504 in Fayette County. The practice phone is (859) 313-1000. Dr. Ayres also practices at St Joseph Hospital, 1 St Joseph Dr, Lexington, KY 40504.
- Saint Joseph HospitalPrimaryOne Saint Joseph Drive, Lexington, KY 40504 · Fayette CountyPhone(859) 313-1000
- St Joseph Hospital1 St Joseph Dr, Lexington, KY 40504 · Fayette CountyPhone(859) 313-1000
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Robert A. Ayres is affiliated with 8 sites of care and 3 medical groups
Dr. Ayres' primary practice is Saint Joseph Hospital in Lexington, Kentucky, part of CommonSpirit Health. Dr. Ayres is also affiliated with CommonSpirit - Saint Joseph Medical Center - East Lexington. The medical group on file is Cogent Healthcare (now part of Sound Physicians). Dmand AI also links Dr. Ayres to 4 more hospitals, 2 medical groups, 1 group practice or clinic and 1 rural health clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Robert A. Ayres' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ayres practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Saint Joseph Hospital | Available with a free account |
| +7 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert A. Ayres is one of 303 hospitalists in Kentucky
Hospitalist is Dr. Ayres' primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Ayres is licensed in Indiana.
Specialties and state licenses
- Hospitalist, IndianaPrimary
Hospitalists near Dr. Ayres
Counts of hospitalists 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. Robert A. Ayres treated 11 Medicare patients in 2024, average age 79
CMS counts 11 Medicare patients who saw Dr. Ayres in 2024. The largest group is under 65, with 0 patients. Their average risk score is 1.28, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Ayres' median patient age at 71, with 59% women.
Dr. Ayres' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Ayres' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women59%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert A. Ayres wrote 1,034 Medicare Part D claims in 2024
In 2024, Dr. Ayres wrote 1,034 Medicare Part D claims for 99 patients. 79% of them were for generic drugs. CMS names the drug for 677 of them, across 29 drugs with 11 or more claims each, at $54,310 in total drug cost. In 2023, CMS named 228 claims across 14 drugs.
Dr. Ayres' Part D claims by kind of drug, 2024
- Generic819 claims79%
- Brand-name and other215 claims21%
Dr. Ayres' 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. Ayres' Part D claims, 2024
- Opioids2%23 of 1,034 claims
- Antibiotics5%49 of 1,034 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: 2282024: 677197%
Drugs named by CMS: 29 in 2024, 14 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
How Dr. Robert A. Ayres takes part in Medicare
Dr. Ayres accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Robert A. Ayres received $332 in industry payments from 2023 to 2025
CMS Open Payments shows 18 general payments to Dr. Ayres from 12 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $61.
General payments to Dr. Ayres by program year, 2023 to 2025
Companies that paid Dr. Ayres the most, 2023 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Robert A. Ayres'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 Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Robert A. Ayres
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. Robert A. Ayres' NPI number?
Dr. Robert A. Ayres' NPI number is 1609507789. It was assigned on June 21, 2022, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert A. Ayres?
Dr. Robert A. Ayres is a hospitalist in Lexington, Kentucky. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Robert A. Ayres practice?
Dr. Ayres practices at One Saint Joseph Drive, Lexington, KY 40504. Dr. Ayres also practices at 1 St Joseph Dr, Lexington, KY 40504. Dr. Ayres' primary practice is Saint Joseph Hospital in Lexington, Kentucky, part of CommonSpirit Health. Dmand AI also links Dr. Ayres to 4 hospitals, 2 medical groups, 1 group practice or clinic and 1 rural health clinic.
What is Dr. Robert A. Ayres' office phone number?
The practice phone on file for Dr. Ayres is (859) 313-1000.
What is Dr. Robert A. Ayres' medical license number?
Dr. Ayres holds Indiana license 01091255A.
Which hospitals is Dr. Robert A. Ayres affiliated with?
Dr. Ayres practices at Saint Joseph Hospital in Lexington, Kentucky. Dr. Ayres is also affiliated with CommonSpirit - Saint Joseph Medical Center - East Lexington. Dmand AI links Dr. Ayres to 4 more hospitals.
What medical group is Dr. Robert A. Ayres part of?
Dr. Ayres is linked to Cogent Healthcare (now part of Sound Physicians). Dmand AI links Dr. Ayres to 2 more medical groups.
Does Dr. Robert A. Ayres accept Medicare?
Yes. CMS lists Dr. Ayres as accepting Medicare assignment.
How many Medicare patients does Dr. Robert A. Ayres see?
CMS counts 11 Medicare patients who saw Dr. Ayres in 2024, with an average age of 79.
What drugs does Dr. Robert A. Ayres prescribe most?
In 2024 Medicare Part D data, Dr. Ayres' most prescribed drugs by claims were Atorvastatin Calcium, Eliquis and Lisinopril.
Has Dr. Robert A. Ayres received payments from drug or device companies?
CMS Open Payments shows $332 in general payments to Dr. Ayres from 12 companies from 2023 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Robert A. Ayres been practicing?
Dr. Ayres graduated from medical school in 2022, 4 years ago.
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