Joshua L. Korsgarden, OD
- Medicare patients, 2024
- 65
- Hospital affiliations
- 1
- Industry payments
- $21
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 300 Randall Rd, Geneva, IL 60134
- Practice phone
- Call (630) 208-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Joshua Korsgarden'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.
Joshua L. Korsgarden is an optometrist in Geneva, Illinois
Joshua Korsgarden practices at Northwestern Medicine Delnor Hospital in Geneva, Illinois, part of Northwestern Memorial HealthCare.
Joshua Korsgarden's NPI, 1821036237, was assigned on June 4, 2006. Joshua Korsgarden graduated from Illinois College of Optometry at Chicago in 2004. Joshua Korsgarden holds Illinois license 047-930861.
- NPI
- 1821036237NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1052389624
- NPI enumeration date
- June 4, 2006
- NPI status
- Active
- Practice phone
- (630) 208-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Joshua L. Korsgarden practices at Northwestern Medicine Delnor Hospital in Geneva, Illinois
Joshua Korsgarden's primary practice is Northwestern Medicine Delnor Hospital, at 300 Randall Rd, Geneva, IL 60134 in Kane County. The practice phone is (630) 208-3000.
- Northwestern Medicine Delnor Hospital300 Randall Rd, Geneva, IL 60134 · Kane CountyPhone(630) 208-3000
Source: Dmand AI Affiliation Data
Joshua L. Korsgarden is affiliated with 2 sites of care
Joshua Korsgarden's primary practice is Northwestern Medicine Delnor Hospital in Geneva, Illinois, part of Northwestern Memorial HealthCare. Dmand AI also links Joshua Korsgarden to 1 physician office, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Joshua L. Korsgarden's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Joshua Korsgarden practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwestern Medicine Delnor Hospital | Available with a free account |
| +1 more affiliated site | 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 Northwestern Memorial HealthCare and 6.2K+ hospitals, with verified contacts in the same login.
Joshua L. Korsgarden is one of 2,194 optometrists in Illinois
Optometrist is Joshua Korsgarden's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Joshua Korsgarden is licensed in Illinois.
Specialties and state licenses
- Optometrist, IllinoisPrimary
Optometrists near Joshua Korsgarden
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
Joshua L. Korsgarden treated 65 Medicare patients in 2024, average age 75
CMS counts 65 Medicare patients who saw Joshua Korsgarden in 2024. The largest group is 65 to 74, with 37 patients. 75% of them have high cholesterol, and 69% have high blood pressure. Their average risk score is 0.98, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Joshua Korsgarden's median patient age at 69, with 57% women.
Joshua Korsgarden's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Joshua Korsgarden's Medicare patients by sex, 2024
- Women4062%
- Men2538%
Chronic conditions among Joshua Korsgarden's Medicare patients, 2024
- High cholesterol75%
- High blood pressure69%
- Arthritis43%
- Diabetes23%
- Ischemic heart disease22%
- Cancer18%
- Depression18%
- Mood disorders18%
Share of Medicare patients with each condition. A patient can have several.
Joshua Korsgarden's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women57%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Joshua L. Korsgarden received $21 in industry payments in 2025
CMS Open Payments shows 1 general payment to Joshua Korsgarden from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Bausch & Lomb Americas Inc. paid the most, $21.
Companies that paid Joshua Korsgarden the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Joshua L. Korsgarden graduated from Illinois College of Optometry at Chicago
Joshua Korsgarden graduated from Illinois College of Optometry at Chicago in 2004.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Joshua L. Korsgarden'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 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) |
| 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 Joshua L. Korsgarden
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Joshua L. Korsgarden's NPI number?
Joshua L. Korsgarden's NPI number is 1821036237. It was assigned on June 4, 2006, and it is active in the NPI Registry.
What does Joshua L. Korsgarden specialize in?
Joshua L. Korsgarden is an optometrist in Geneva, Illinois. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Joshua L. Korsgarden practice?
Joshua Korsgarden practices at 300 Randall Rd, Geneva, IL 60134. Joshua Korsgarden's primary practice is Northwestern Medicine Delnor Hospital in Geneva, Illinois, part of Northwestern Memorial HealthCare. Dmand AI also links Joshua Korsgarden to 1 physician office.
What is Joshua L. Korsgarden's office phone number?
The practice phone on file for Joshua Korsgarden is (630) 208-3000.
What is Joshua L. Korsgarden's medical license number?
Joshua Korsgarden holds Illinois license 047-930861.
Which hospitals is Joshua L. Korsgarden affiliated with?
Joshua Korsgarden practices at Northwestern Medicine Delnor Hospital in Geneva, Illinois.
How many Medicare patients does Joshua L. Korsgarden see?
CMS counts 65 Medicare patients who saw Joshua Korsgarden in 2024, with an average age of 75.
Where did Joshua L. Korsgarden go to medical school?
Joshua Korsgarden graduated from Illinois College of Optometry at Chicago in 2004.
Has Joshua L. Korsgarden received payments from drug or device companies?
CMS Open Payments shows $21 in general payments to Joshua Korsgarden from 1 company from 2025 to 2025. The largest total came from Bausch & Lomb Americas Inc.
How long has Joshua L. Korsgarden been practicing?
Joshua Korsgarden graduated from medical school in 2004, 22 years ago.
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