Dr. James A. Holzberger, MD
- Medicare services, 2022
- 50
- Part D claims, 2022
- 221
- Industry payments
- $598
- Affiliated sites
- 2
- Medical groups
- 2
- Practice address
- 1000 N Oak Ave Attn Provider Certification Wwp, Marshfield, WI 54449-5703
- Practice phone
- Call (715) 387-5511
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Marshfield Medical Center - Wisconsin Rapids Campus
Multi-specialty group site · Marshfield, Wisconsin
Find Dr. Holzberger'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.
Dr. James A. Holzberger is an ophthalmologist in Marshfield, Wisconsin
Dr. Holzberger practices at Marshfield Medical Center - Wisconsin Rapids Campus in Marshfield, Wisconsin.
Dr. Holzberger's NPI, 1417062936, was assigned on August 21, 2006. Dr. Holzberger graduated from University of Wisconsin School of Medicine in 1984. Dr. Holzberger holds Wisconsin license 29208.
- NPI
- 1417062936NPI Registry (opens in a new tab)
- NPI enumeration date
- August 21, 2006
- NPI status
- Active
- Practice phone
- (715) 387-5511
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 68
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. James A. Holzberger practices at 2 locations in Marshfield, Wisconsin
Dr. Holzberger's primary practice is Marshfield Medical Center - Wisconsin Rapids Campus, at 1000 N Oak Ave Attn Provider Certification Wwp, Marshfield, WI 54449-5703. The practice phone is (715) 387-5511. The NPI Registry lists Dr. Holzberger's practice address as 611 N St Joseph Ave, Marshfield, WI 54449.
- Marshfield Medical Center - Wisconsin Rapids CampusPrimary1000 N Oak Ave Attn Provider Certification Wwp, Marshfield, WI 54449-5703Phone(715) 387-5511
- NPI Registry address611 N St Joseph Ave, Marshfield, WI 54449 · Wood CountyPhone(715) 221-7572
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. James A. Holzberger is affiliated with 2 sites of care and 2 medical groups
Dr. Holzberger's primary practice is Marshfield Medical Center - Wisconsin Rapids Campus in Marshfield, Wisconsin. The medical group on file is Marshfield Clinic Health System. Dmand AI also links Dr. Holzberger to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. James A. Holzberger's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Holzberger practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Marshfield Medical Center - Wisconsin Rapids Campus | 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
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. James A. Holzberger is one of 328 ophthalmologists in Wisconsin
Ophthalmology is Dr. Holzberger's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Holzberger is licensed in Wisconsin.
Specialties and state licenses
- Ophthalmology, WisconsinPrimary
Ophthalmologists near Dr. Holzberger
Counts of ophthalmologists 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
Dr. James A. Holzberger billed Medicare for 50 services in 2022
CMS data shows 50 Medicare services from Dr. Holzberger across 2 procedure codes in 2022. Medicare paid $1,277 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Holzberger's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Tests and treatments
- 2021: 1872022: 5073%
- Surgery
- 2021: 502022: 0100%
- Office and hospital visits
- 2021: 182022: 0100%
Dr. Holzberger compared with the Wisconsin median for ophthalmologists, 2022
- Dr. Holzberger
- Wisconsin median
- Medicare services
- 50vs 1,16296% below
- Part D claims
- 221vs 61564% below
Medians across 346 ophthalmologists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Holzberger's most billed Medicare procedure codes, 2022
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Holzberger?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Holzberger and other ophthalmologists in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. James A. Holzberger's patients have a median age of 75
Across all payers, Dmand AI patient panel data puts Dr. Holzberger's median patient age at 75, with 55% women.
Dr. Holzberger'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
- Women55%
- Men45%
Source: Dmand AI Patient Panel Data
Dr. James A. Holzberger wrote 221 Medicare Part D claims in 2022
In 2022, Dr. Holzberger wrote 221 Medicare Part D claims. They cover 7 drugs, with $10,338 in total drug cost. In 2021, CMS named 573 claims across 13 drugs.
Dr. Holzberger's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 5732022: 22161%
Drugs named by CMS: 7 in 2022, 13 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. James A. Holzberger received $598 in industry payments from 2016 to 2019
CMS Open Payments shows 8 general payments to Dr. Holzberger from 5 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 100% of the total. Carl Zeiss Meditec, Inc. paid the most, $288.
General payments to Dr. Holzberger by program year, 2016 to 2019
Companies that paid Dr. Holzberger the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. James A. Holzberger graduated from University of Wisconsin School of Medicine
Dr. Holzberger graduated from University of Wisconsin School of Medicine in 1984.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. James A. Holzberger'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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 Dr. James A. Holzberger
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. James A. Holzberger's NPI number?
Dr. James A. Holzberger's NPI number is 1417062936. It was assigned on August 21, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. James A. Holzberger?
Dr. James A. Holzberger is an ophthalmologist in Marshfield, Wisconsin. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. James A. Holzberger practice?
Dr. Holzberger practices at 1000 N Oak Ave Attn Provider Certification Wwp, Marshfield, WI 54449-5703. Dr. Holzberger also practices at 611 N St Joseph Ave, Marshfield, WI 54449. Dr. Holzberger's primary practice is Marshfield Medical Center - Wisconsin Rapids Campus in Marshfield, Wisconsin. Dmand AI also links Dr. Holzberger to 1 group practice or clinic and 1 medical group.
What is Dr. James A. Holzberger's office phone number?
The practice phone on file for Dr. Holzberger is (715) 387-5511.
What is Dr. James A. Holzberger's medical license number?
Dr. Holzberger holds Wisconsin license 29208.
What medical group is Dr. James A. Holzberger part of?
Dr. Holzberger is linked to Marshfield Clinic Health System. Dmand AI links Dr. Holzberger to 1 more medical group.
Does Dr. James A. Holzberger accept Medicare?
Yes. CMS data shows Dr. Holzberger billed Medicare for 50 services in 2022.
What services does Dr. James A. Holzberger bill to Medicare?
In 2022, Dr. Holzberger's most billed Medicare services were eye exam or test (92014) and eye exam or test (92134).
Where did Dr. James A. Holzberger go to medical school?
Dr. Holzberger graduated from University of Wisconsin School of Medicine in 1984.
What drugs does Dr. James A. Holzberger prescribe most?
In 2022 Medicare Part D data, Dr. Holzberger's most prescribed drugs by claims were Latanoprost, Dorzolamide HCl and Brimonidine Tartrate.
Has Dr. James A. Holzberger received payments from drug or device companies?
CMS Open Payments shows $598 in general payments to Dr. Holzberger from 5 companies from 2016 to 2019. The largest total came from Carl Zeiss Meditec, Inc.
How long has Dr. James A. Holzberger been practicing?
Dr. Holzberger graduated from medical school in 1984, 42 years ago.
Selling to ophthalmology practices?
See ophthalmologists in Wisconsin by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card