James D. Hollmann, OD
- Medicare patients, 2024
- 134
- Part D claims, 2024
- 117
- Industry payments
- $122
- Affiliated sites
- 2
- Medical groups
- 3
- Practice address
- 15933 Clayton Rd, Ballwin, MO 63011
- Practice phone
- Call (636) 200-4393
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Clarkson Optometry Illinois
Ballwin, Missouri
Find James Hollmann'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.
James D. Hollmann is an optometrist in Ballwin, Missouri
James Hollmann practices at Clarkson Optometry Illinois in Ballwin, Missouri.
James Hollmann's NPI, 1578533410, was assigned on January 24, 2006. James Hollmann graduated from University of Missouri St Louis - School of Optometry in 1997. James Hollmann holds Missouri license TO3353.
- NPI
- 1578533410NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032242722
- NPI enumeration date
- January 24, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (636) 200-4393
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
James D. Hollmann practices at Clarkson Optometry Illinois in Ballwin, Missouri
James Hollmann's primary practice is Clarkson Optometry Illinois, at 15933 Clayton Rd, Ballwin, MO 63011 in Saint Louis County. The practice phone is (636) 200-4393.
- Clarkson Optometry Illinois15933 Clayton Rd, Ballwin, MO 63011 · Saint Louis CountyPhone(636) 200-4393
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
James D. Hollmann is affiliated with 3 sites of care and 3 medical groups
James Hollmann's primary practice is Clarkson Optometry Illinois in Ballwin, Missouri. Dmand AI also links James Hollmann to 3 medical groups and 2 group practices and clinics, 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 James D. Hollmann's practice
Dmand AI tracks the electronic health record (EHR) system at each site where James Hollmann practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Clarkson Optometry Illinois | Available with a free account |
| +2 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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James D. Hollmann is one of 866 optometrists in Missouri
Optometrist is James Hollmann's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Dmand AI has James Hollmann's licenses on file in 2 states: Missouri and Illinois.
Specialties and state licenses
- Optometrist, MissouriPrimary
- Illinois license
Optometrists near James Hollmann
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
James D. Hollmann treated 134 Medicare patients in 2024, average age 74
CMS counts 134 Medicare patients who saw James Hollmann in 2024. The largest group is 65 to 74, with 73 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.08, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts James Hollmann's median patient age at 55, with 54% women.
James Hollmann's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
James Hollmann's Medicare patients by sex, 2024
- Women7254%
- Men6246%
Chronic conditions among James Hollmann's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis45%
- Diabetes40%
- Chronic kidney disease31%
- Ischemic heart disease28%
- Anxiety23%
- Mood disorders19%
Share of Medicare patients with each condition. A patient can have several.
James Hollmann's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
James D. Hollmann wrote 117 Medicare Part D claims in 2024
In 2024, James Hollmann wrote 117 Medicare Part D claims for 41 patients. 73% of them were for generic drugs.
James Hollmann's Part D claims by kind of drug, 2024
- Generic85 claims73%
- Brand-name32 claims27%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How James D. Hollmann takes part in Medicare
James Hollmann 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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James D. Hollmann received $122 in industry payments in 2025
CMS Open Payments shows 7 general payments to James Hollmann from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Alcon Laboratories Inc paid the most, $64.
Companies that paid James Hollmann the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
James D. Hollmann graduated from University of Missouri St Louis - School of Optometry
James Hollmann graduated from University of Missouri St Louis - School of Optometry in 1997.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for James D. Hollmann'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) |
| 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 James D. Hollmann
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is James D. Hollmann's NPI number?
James D. Hollmann's NPI number is 1578533410. It was assigned on January 24, 2006, and it is active in the NPI Registry.
What does James D. Hollmann specialize in?
James D. Hollmann is an optometrist in Ballwin, Missouri. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does James D. Hollmann practice?
James Hollmann practices at 15933 Clayton Rd, Ballwin, MO 63011. James Hollmann's primary practice is Clarkson Optometry Illinois in Ballwin, Missouri. Dmand AI also links James Hollmann to 3 medical groups and 2 group practices and clinics.
What is James D. Hollmann's office phone number?
The practice phone on file for James Hollmann is (636) 200-4393.
What is James D. Hollmann's medical license number?
James Hollmann holds Missouri license TO3353, one of the licenses on file in 2 states.
Which states has James D. Hollmann been licensed in?
Dmand AI has state licenses on file for James Hollmann in Missouri and Illinois.
Does James D. Hollmann accept Medicare?
Yes. CMS lists James Hollmann as accepting Medicare assignment.
How many Medicare patients does James D. Hollmann see?
CMS counts 134 Medicare patients who saw James Hollmann in 2024, with an average age of 74.
Where did James D. Hollmann go to medical school?
James Hollmann graduated from University of Missouri St Louis - School of Optometry in 1997.
Has James D. Hollmann received payments from drug or device companies?
CMS Open Payments shows $122 in general payments to James Hollmann from 2 companies from 2025 to 2025. The largest total came from Alcon Laboratories Inc.
How long has James D. Hollmann been practicing?
James Hollmann graduated from medical school in 1997, 29 years ago.
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