Grant C. Amstutz, OD
- Medicare patients, 2024
- 323
- Part D claims, 2024
- 578
- Hospital affiliations
- 1
- Industry payments
- $41
- Medical group
- 1
- Practice address
- 800 Zorn Avenue, Louisville, KY 40206
- Practice phone
- Call (502) 287-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Grant Amstutz'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.
Grant C. Amstutz is an optometrist in Louisville, Kentucky
Grant Amstutz practices at Robley Rex Department of Veterans Affairs Medical Center in Louisville, Kentucky, part of Veterans Health Administration.
Grant Amstutz's NPI, 1902898547, was assigned on August 19, 2005. Grant Amstutz graduated from Indiana University - School of Optometry in 2000. Grant Amstutz holds Indiana license 18003059A.
- NPI
- 1902898547NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8325001225
- NPI enumeration date
- August 19, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (502) 287-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Grant C. Amstutz practices at Robley Rex Department of Veterans Affairs Medical Center in Louisville, Kentucky
Grant Amstutz's primary practice is Robley Rex Department of Veterans Affairs Medical Center, at 800 Zorn Avenue, Louisville, KY 40206 in Jefferson County. The practice phone is (502) 287-4000.
- Robley Rex Department of Veterans Affairs Medical Center800 Zorn Avenue, Louisville, KY 40206 · Jefferson CountyPhone(502) 287-4000
Source: Dmand AI Affiliation Data
Grant C. Amstutz is affiliated with 2 sites of care and 1 medical group
Grant Amstutz's primary practice is Robley Rex Department of Veterans Affairs Medical Center in Louisville, Kentucky, part of Veterans Health Administration. Dmand AI also links Grant Amstutz to 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 Grant C. Amstutz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Grant Amstutz practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Robley Rex Department of Veterans Affairs Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Grant C. Amstutz is one of 608 optometrists in Kentucky
Optometrist is Grant Amstutz's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Grant Amstutz is licensed in Indiana.
Specialties and state licenses
- Optometrist, IndianaPrimary
Optometrists near Grant Amstutz
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
Grant C. Amstutz treated 323 Medicare patients in 2024, average age 73
CMS counts 323 Medicare patients who saw Grant Amstutz in 2024. The largest group is 65 to 74, with 158 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 17% are also on Medicaid. Their average risk score is 0.98, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Grant Amstutz's median patient age at 70, with 61% women.
Grant Amstutz's Medicare patients by age, 2024
Grant Amstutz's Medicare patients by sex, 2024
- Women18758%
- Men13642%
Chronic conditions among Grant Amstutz's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis51%
- Diabetes33%
- Ischemic heart disease31%
- Anxiety26%
- Mood disorders24%
- COPD22%
Share of Medicare patients with each condition. A patient can have several.
Grant Amstutz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women61%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Grant C. Amstutz wrote 578 Medicare Part D claims in 2024
In 2024, Grant Amstutz wrote 578 Medicare Part D claims for 227 patients. 63% of them were for generic drugs.
Grant Amstutz's Part D claims by kind of drug, 2024
- Generic365 claims63%
- Brand-name213 claims37%
Drug classes CMS tracks in Grant Amstutz's Part D claims, 2024
- Antibiotics5%27 of 578 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
Grant C. Amstutz ranks in the 65th percentile for cataract surgery in Medicare
Grant Amstutz accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 54 procedures of cataract surgery by Grant Amstutz, more than 65% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Grant Amstutz ranks in Medicare procedure volume
- Cataract surgery
- 65th percentile54 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
For MedTech and pharma teams
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Grant C. Amstutz received $41 in industry payments in 2025
CMS Open Payments shows 2 general payments to Grant Amstutz from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Tarsus Pharmaceuticals, Inc. paid the most, $41.
Companies that paid Grant Amstutz the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Grant C. Amstutz graduated from Indiana University - School of Optometry
Grant Amstutz graduated from Indiana University - School of Optometry in 2000.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Grant C. Amstutz'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) |
| 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) |
| 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 Grant C. Amstutz
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Grant C. Amstutz's NPI number?
Grant C. Amstutz's NPI number is 1902898547. It was assigned on August 19, 2005, and it is active in the NPI Registry.
What does Grant C. Amstutz specialize in?
Grant C. Amstutz is an optometrist in Louisville, Kentucky. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Grant C. Amstutz practice?
Grant Amstutz practices at 800 Zorn Avenue, Louisville, KY 40206. Grant Amstutz's primary practice is Robley Rex Department of Veterans Affairs Medical Center in Louisville, Kentucky, part of Veterans Health Administration. Dmand AI also links Grant Amstutz to 1 group practice or clinic and 1 medical group.
What is Grant C. Amstutz's office phone number?
The practice phone on file for Grant Amstutz is (502) 287-4000.
What is Grant C. Amstutz's medical license number?
Grant Amstutz holds Indiana license 18003059A.
Which hospitals is Grant C. Amstutz affiliated with?
Grant Amstutz practices at Robley Rex Department of Veterans Affairs Medical Center in Louisville, Kentucky.
Does Grant C. Amstutz accept Medicare?
Yes. CMS lists Grant Amstutz as accepting Medicare assignment.
How many Medicare patients does Grant C. Amstutz see?
CMS counts 323 Medicare patients who saw Grant Amstutz in 2024, with an average age of 73.
Where did Grant C. Amstutz go to medical school?
Grant Amstutz graduated from Indiana University - School of Optometry in 2000.
Has Grant C. Amstutz received payments from drug or device companies?
CMS Open Payments shows $41 in general payments to Grant Amstutz from 1 company from 2025 to 2025. The largest total came from Tarsus Pharmaceuticals, Inc.
How long has Grant C. Amstutz been practicing?
Grant Amstutz graduated from medical school in 2000, 26 years ago.
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