Carl E. Harder, OD
- Medicare patients, 2024
- 123
- Part D claims, 2024
- 352
- Affiliated sites
- 2
- Medical groups
- 2
- State licenses
- 2
- Practice address
- 4655 Outer Loop, Louisville, KY 40219
- Practice phone
- Call (502) 966-2020
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
KY Doctors of Optometry
Louisville, Kentucky
Find Carl Harder'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.
Carl E. Harder is an optometrist in Louisville, Kentucky
Carl Harder practices at KY Doctors of Optometry in Louisville, Kentucky.
Carl Harder's NPI, 1558635748, was assigned on March 6, 2012. Carl Harder holds Kentucky license 1894DT.
- NPI
- 1558635748NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9739322306
- NPI enumeration date
- March 6, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (502) 966-2020
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Carl E. Harder practices at KY Doctors of Optometry in Louisville, Kentucky
Carl Harder's primary practice is KY Doctors of Optometry, at 4655 Outer Loop, Louisville, KY 40219 in Jefferson County. The practice phone is (502) 966-2020.
- KY Doctors of Optometry4655 Outer Loop, Louisville, KY 40219 · Jefferson CountyPhone(502) 966-2020
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Carl E. Harder is affiliated with 3 sites of care and 2 medical groups
Carl Harder's primary practice is KY Doctors of Optometry in Louisville, Kentucky. Dmand AI also links Carl Harder to 2 group practices and clinics and 2 medical groups, 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 Carl E. Harder's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Carl Harder practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| KY Doctors of Optometry | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Carl E. Harder is one of 608 optometrists in Kentucky
Optometrist is Carl Harder's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Dmand AI has Carl Harder's licenses on file in 2 states: Kentucky and Indiana.
Specialties and state licenses
- Optometrist, KentuckyPrimary
- Indiana license
Optometrists near Carl Harder
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
Carl E. Harder treated 123 Medicare patients in 2024, average age 75
CMS counts 123 Medicare patients who saw Carl Harder in 2024. The largest group is 75 to 84, with 57 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 0.99, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Carl Harder's median patient age at 32, with 61% women.
Carl Harder's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Carl Harder's Medicare patients by sex, 2024
- Women7662%
- Men4738%
Chronic conditions among Carl Harder's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis48%
- Diabetes33%
- Ischemic heart disease31%
- COPD25%
- Mood disorders23%
- Anxiety22%
Share of Medicare patients with each condition. A patient can have several.
Carl Harder's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 32
Patient panel by sex, all payers
- Women61%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Carl E. Harder wrote 352 Medicare Part D claims in 2024
In 2024, Carl Harder wrote 352 Medicare Part D claims for 107 patients. 70% of them were for generic drugs.
Carl Harder's Part D claims by kind of drug, 2024
- Generic247 claims70%
- Brand-name105 claims30%
Drug classes CMS tracks in Carl Harder's Part D claims, 2024
- Antibiotics4%14 of 352 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Carl E. Harder takes part in Medicare
Carl Harder accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Cataract surgery: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Sources for Carl E. Harder'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 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 National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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 Carl E. Harder
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Carl E. Harder's NPI number?
Carl E. Harder's NPI number is 1558635748. It was assigned on March 6, 2012, and it is active in the NPI Registry.
What does Carl E. Harder specialize in?
Carl E. Harder is an optometrist in Louisville, Kentucky. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Carl E. Harder practice?
Carl Harder practices at 4655 Outer Loop, Louisville, KY 40219. Carl Harder's primary practice is KY Doctors of Optometry in Louisville, Kentucky. Dmand AI also links Carl Harder to 2 group practices and clinics and 2 medical groups.
What is Carl E. Harder's office phone number?
The practice phone on file for Carl Harder is (502) 966-2020.
What is Carl E. Harder's medical license number?
Carl Harder holds Kentucky license 1894DT, one of the licenses on file in 2 states.
Which states has Carl E. Harder been licensed in?
Dmand AI has state licenses on file for Carl Harder in Kentucky and Indiana.
Does Carl E. Harder accept Medicare?
Yes. CMS lists Carl Harder as accepting Medicare assignment.
How many Medicare patients does Carl E. Harder see?
CMS counts 123 Medicare patients who saw Carl Harder in 2024, with an average age of 75.
How long has Carl E. Harder been practicing?
Carl Harder graduated from medical school in 2006, 20 years ago.
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