Regina Callihan, OD
- Medicare patients, 2024
- 130
- Part D claims, 2024
- 184
- Hospital affiliations
- 1
- Industry payments
- $37
- Medical group
- 1
- 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 Regina Callihan'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.
Regina Callihan is an optometrist in Lexington, Kentucky
Regina Callihan practices at Saint Joseph Hospital in Lexington, Kentucky, part of CommonSpirit Health.
Regina Callihan's NPI, 1215906110, was assigned on March 15, 2006. Regina Callihan graduated from University of Alabama School of Medicine in 2003. Regina Callihan holds Kentucky license 1593-DT.
- NPI
- 1215906110NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2365418449
- NPI enumeration date
- March 15, 2006
- NPI status
- Active
- Practice phone
- (859) 313-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Regina Callihan practices at 2 locations in Lexington, Kentucky
Regina Callihan's primary practice is Saint Joseph Hospital, at One Saint Joseph Drive, Lexington, KY 40504 in Fayette County. The practice phone is (859) 313-1000. Regina Callihan 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
Regina Callihan is affiliated with 3 sites of care and 1 medical group
Regina Callihan's primary practice is Saint Joseph Hospital in Lexington, Kentucky, part of CommonSpirit Health. Dmand AI also links Regina Callihan to 1 physician office, 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Regina Callihan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Regina Callihan practices, 3 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 |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across CommonSpirit Health and 6.2K+ hospitals, with verified contacts in the same login.
Regina Callihan is one of 608 optometrists in Kentucky
Optometrist is Regina Callihan's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Regina Callihan is licensed in Kentucky.
Specialties and state licenses
- Optometrist, KentuckyPrimary
Optometrists near Regina Callihan
Counts of optometrists 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
Regina Callihan treated 130 Medicare patients in 2024, average age 75
CMS counts 130 Medicare patients who saw Regina Callihan in 2024. The largest group is 75 to 84, with 60 patients. 75% of them have high cholesterol, and 71% have high blood pressure. Their average risk score is 0.99, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Regina Callihan's median patient age at 75, with 64% women.
Regina Callihan's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Regina Callihan's Medicare patients by sex, 2024
- Women7558%
- Men5542%
Chronic conditions among Regina Callihan's Medicare patients, 2024
- High cholesterol75%
- High blood pressure71%
- Arthritis52%
- Diabetes30%
- Ischemic heart disease25%
- Anxiety21%
- Mood disorders19%
- Cancer18%
Share of Medicare patients with each condition. A patient can have several.
Regina Callihan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women64%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Regina Callihan wrote 184 Medicare Part D claims in 2024
In 2024, Regina Callihan wrote 184 Medicare Part D claims for 55 patients. 78% of them were for generic drugs.
Regina Callihan's Part D claims by kind of drug, 2024
- Generic143 claims78%
- Brand-name41 claims22%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Regina Callihan ranks in the 42nd percentile for cataract surgery in Medicare
CMS counts 18 procedures of cataract surgery by Regina Callihan, more than 42% of the clinicians it reports for that procedure.
Where Regina Callihan ranks in Medicare procedure volume
- Cataract surgery
- 42nd percentile18 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Source: Doctors and Clinicians Utilization Data (CMS)
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Regina Callihan received $37 in industry payments in 2025
CMS Open Payments shows 2 general payments to Regina Callihan from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Johnson & Johnson Vision Care, Inc. paid the most, $37.
Companies that paid Regina Callihan the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Regina Callihan graduated from University of Alabama School of Medicine
Regina Callihan graduated from University of Alabama School of Medicine in 2003.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Regina Callihan'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 (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians Utilization Data (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 Regina Callihan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Regina Callihan's NPI number?
Regina Callihan's NPI number is 1215906110. It was assigned on March 15, 2006, and it is active in the NPI Registry.
What does Regina Callihan specialize in?
Regina Callihan is an optometrist in Lexington, Kentucky. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Regina Callihan practice?
Regina Callihan practices at One Saint Joseph Drive, Lexington, KY 40504. Regina Callihan also practices at 1 St Joseph Dr, Lexington, KY 40504. Regina Callihan's primary practice is Saint Joseph Hospital in Lexington, Kentucky, part of CommonSpirit Health. Dmand AI also links Regina Callihan to 1 physician office, 1 group practice or clinic and 1 medical group.
What is Regina Callihan's office phone number?
The practice phone on file for Regina Callihan is (859) 313-1000.
What is Regina Callihan's medical license number?
Regina Callihan holds Kentucky license 1593-DT.
Which hospitals is Regina Callihan affiliated with?
Regina Callihan practices at Saint Joseph Hospital in Lexington, Kentucky.
How many Medicare patients does Regina Callihan see?
CMS counts 130 Medicare patients who saw Regina Callihan in 2024, with an average age of 75.
Where did Regina Callihan go to medical school?
Regina Callihan graduated from University of Alabama School of Medicine in 2003.
Has Regina Callihan received payments from drug or device companies?
CMS Open Payments shows $37 in general payments to Regina Callihan from 1 company from 2025 to 2025. The largest total came from Johnson & Johnson Vision Care, Inc.
How long has Regina Callihan been practicing?
Regina Callihan graduated from medical school in 2003, 23 years ago.
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