Dr. David D. Saggau, MD
- Medicare services, 2024
- 78,634
- Medicare patients, 2024
- 828
- Part D claims, 2024
- 391
- Publications
- 4
- Industry payments
- $3,037
- Practice address
- 309 E Church St, Marshalltown, IA 50158
- Practice phone
- Call (641) 754-6200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Wolfe Eye Clinic- Marshalltown
Marshalltown, Iowa
Find Dr. Saggau'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. David D. Saggau is an ophthalmologist in Marshalltown, Iowa
Dr. Saggau practices at Wolfe Eye Clinic- Marshalltown in Marshalltown, Iowa.
Dr. Saggau's NPI, 1124010913, was assigned on August 17, 2005. Dr. Saggau graduated from University of Iowa, RJ & L Carver College of Medicine in 1984. Dr. Saggau holds Iowa license 26370.
- NPI
- 1124010913NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0941290142
- NPI enumeration date
- August 17, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (641) 754-6200
- 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 Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David D. Saggau practices at Wolfe Eye Clinic- Marshalltown in Marshalltown, Iowa
Dr. Saggau's primary practice is Wolfe Eye Clinic- Marshalltown, at 309 E Church St, Marshalltown, IA 50158 in Marshall County. The practice phone is (641) 754-6200.
- Wolfe Eye Clinic- Marshalltown309 E Church St, Marshalltown, IA 50158 · Marshall CountyPhone(641) 754-6200
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. David D. Saggau is affiliated with 1 site of care and 1 medical group
Dr. Saggau's primary practice is Wolfe Eye Clinic- Marshalltown in Marshalltown, Iowa. Dmand AI also links Dr. Saggau to 1 medical group, 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 Dr. David D. Saggau's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Saggau practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Wolfe Eye Clinic- Marshalltown | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David D. Saggau is one of 180 ophthalmologists in Iowa
Ophthalmology is Dr. Saggau's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Saggau is licensed in Iowa.
Specialties and state licenses
- Ophthalmology, IowaPrimary
Ophthalmologists near Dr. Saggau
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. David D. Saggau billed Medicare for 78,634 services in 2024
CMS data shows 78,634 Medicare services from Dr. Saggau across 16 procedure codes in 2024, for 828 Medicare patients. Medicare paid $3,412,127 for them. Every service was in an office.
Dr. Saggau's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 44,4792024: 71,40361%
- Tests and treatments
- 2023: 3,5562024: 3,7736%
- Surgery
- 2023: 2,7512024: 2,7261%
- Office and hospital visits
- 2023: 7592024: 7324%
Dr. Saggau compared with the Iowa median for ophthalmologists, 2024
- Dr. Saggau
- Iowa median
- Medicare services
- 78,634vs 1,79243.9 times
- Medicare patients
- 828vs 66924% above
- Part D claims
- 311vs 39621% below
Medians across 183 ophthalmologists in Iowa with Dmand AI profiles that report each measure.
Dr. Saggau's most billed Medicare procedure codes, 2024
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. Saggau?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Saggau and other ophthalmologists in Iowa.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David D. Saggau treated 828 Medicare patients in 2024, average age 80
CMS counts 828 Medicare patients who saw Dr. Saggau in 2024. The largest group is 85 and over, with 297 patients. 75% of them have high blood pressure, and 68% have high cholesterol. 7% are also on Medicaid. Their average risk score is 1.34, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Saggau's median patient age at 73, with 54% women.
Dr. Saggau's Medicare patients by age, 2024
Dr. Saggau's Medicare patients by sex, 2024
- Women51362%
- Men31538%
Chronic conditions among Dr. Saggau's Medicare patients, 2024
- High blood pressure75%
- High cholesterol68%
- Arthritis35%
- Diabetes34%
- Chronic kidney disease32%
- Ischemic heart disease23%
- Atrial fibrillation22%
- Anxiety19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Saggau's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David D. Saggau wrote 391 Medicare Part D claims in 2024
In 2024, Dr. Saggau wrote 391 Medicare Part D claims for 120 patients. 70% of them were for generic drugs. CMS names the drug for 311 of them, across 8 drugs with 11 or more claims each, at $10,565 in total drug cost. In 2023, CMS named 614 claims across 15 drugs.
Dr. Saggau's Part D claims by kind of drug, 2024
- Generic272 claims70%
- Brand-name119 claims30%
Dr. Saggau's most prescribed drugs by claims, 2024
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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 6142024: 31149%
Drugs named by CMS: 8 in 2024, 15 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. David D. Saggau takes part in Medicare
Dr. Saggau accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. David D. Saggau has 4 publications on record
Dmand AI links 4 papers to Dr. Saggau in 2023. Dr. Saggau's most frequent co-authors are Kyle J. Alliman, MD, Charles H. Barnes, MD and Neil M. Bressler, MD.
Dr. Saggau's most frequent co-authors
- Kyle J. Alliman, MD1 shared paper
- Charles H. Barnes, MD1 shared paper
- Neil M. Bressler, MD1 shared paper
Recent publications by Dr. Saggau
Retin Cases Brief Rep
See who Dr. Saggau researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Saggau works with, so you can find a warm path to the right ophthalmologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. David D. Saggau received $3,037 in industry payments from 2017 to 2025
CMS Open Payments shows 23 general payments to Dr. Saggau from 10 drug and device companies from 2017 to 2025. Ownership or investment make up the largest share, 79% of the total. US Retina LLC paid the most, $2,403.
General payments to Dr. Saggau by program year, 2017 to 2025
General payments to Dr. Saggau by kind, 2017 to 2025
- Ownership or investment$2,40379%
- Food and beverage$63421%
Companies that paid Dr. Saggau the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David D. Saggau graduated from University of Iowa, RJ & L Carver College of Medicine
Dr. Saggau graduated from University of Iowa, RJ & L Carver College of Medicine in 1984.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David D. Saggau'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 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. David D. Saggau
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. David D. Saggau's NPI number?
Dr. David D. Saggau's NPI number is 1124010913. It was assigned on August 17, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. David D. Saggau?
Dr. David D. Saggau is an ophthalmologist in Marshalltown, Iowa. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. David D. Saggau practice?
Dr. Saggau practices at 309 E Church St, Marshalltown, IA 50158. Dr. Saggau's primary practice is Wolfe Eye Clinic- Marshalltown in Marshalltown, Iowa. Dmand AI also links Dr. Saggau to 1 medical group.
What is Dr. David D. Saggau's office phone number?
The practice phone on file for Dr. Saggau is (641) 754-6200.
What is Dr. David D. Saggau's medical license number?
Dr. Saggau holds Iowa license 26370.
Does Dr. David D. Saggau accept Medicare?
Yes. CMS data shows Dr. Saggau billed Medicare for 78,634 services in 2024, and Dr. Saggau accepts Medicare assignment.
How many Medicare patients does Dr. David D. Saggau see?
CMS counts 828 Medicare patients who saw Dr. Saggau in 2024, with an average age of 80.
What services does Dr. David D. Saggau bill to Medicare?
In 2024, Dr. Saggau's most billed Medicare services were injected or infused drug (J2777), eye exam or test (92134) and injected or infused drug (J2778).
Where did Dr. David D. Saggau go to medical school?
Dr. Saggau graduated from University of Iowa, RJ & L Carver College of Medicine in 1984.
What drugs does Dr. David D. Saggau prescribe most?
In 2024 Medicare Part D data, Dr. Saggau's most prescribed drugs by claims were Prednisolone Acetate, Dorzolamide-Timolol and Dorzolamide HCl.
Show 4 more questionsShow fewer questions
Has Dr. David D. Saggau received payments from drug or device companies?
CMS Open Payments shows $3,037 in general payments to Dr. Saggau from 10 companies from 2017 to 2025. The largest total came from US Retina LLC.
How long has Dr. David D. Saggau been practicing?
Dr. Saggau graduated from medical school in 1984, 42 years ago.
Does Dr. David D. Saggau do research?
Dmand AI links 4 publications to Dr. Saggau.
Who does Dr. David D. Saggau publish with?
Dr. Saggau's most frequent co-authors are Kyle J. Alliman, MD (1 shared paper), Charles H. Barnes, MD (1 shared paper) and Neil M. Bressler, MD (1 shared paper).
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