Am J Ophthalmol Case Rep
Dr. Karen M. Gehrs, MD
NPI1669473732
- Medicare services, 2023
- 1,301
- Part D claims, 2024
- 18
- Publications
- 28
- State licenses
- 2
- Year NPI issued
- 2005
- Practice address
- 200 Hawkins Dr, Iowa City, IA 52242
- Practice phone
- Call (319) 356-1616
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
University of Iowa Hospital & Clinics
Iowa City, Iowa
Find Dr. Gehrs' professional email, personal email and mobile number
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Dr. Karen M. Gehrs is an ophthalmologist in Iowa City, Iowa
Dr. Gehrs practices at University of Iowa Hospital & Clinics in Iowa City, Iowa.
Dr. Gehrs' NPI, 1669473732, was assigned on August 10, 2005. Dr. Gehrs graduated from University of Missouri, Columbia School of Medicine in 1987. Dr. Gehrs holds Iowa license 31408.
NPI and contact details
- NPI
- 1669473732NPI Registry (opens in a new tab)
- NPI enumeration date
- August 10, 2005
- NPI status
- Active
- Practice phone
- (319) 356-1616
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Karen M. Gehrs practices at University of Iowa Hospital & Clinics in Iowa City, Iowa
Dr. Gehrs' primary practice is University of Iowa Hospital & Clinics, at 200 Hawkins Dr, Iowa City, IA 52242 in Johnson County. The practice phone is (319) 356-1616.
- University of Iowa Hospital & Clinics200 Hawkins Dr, Iowa City, IA 52242 · Johnson CountyPhone(319) 356-1616
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Karen M. Gehrs is affiliated with 1 site of care
Dr. Gehrs' primary practice is University of Iowa Hospital & Clinics in Iowa City, Iowa.
University of Iowa Hospital & ClinicsPrimary
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Karen M. Gehrs' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gehrs practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University of Iowa Hospital & Clinics | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Karen M. Gehrs is one of 180 ophthalmologists in Iowa
Ophthalmology is Dr. Gehrs' primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dmand AI has Dr. Gehrs' licenses on file in 2 states: Iowa and Florida.
Specialties and state licenses
- Ophthalmology, IowaPrimary
- Florida license
Ophthalmologists near Dr. Gehrs
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. Karen M. Gehrs billed Medicare for 1,301 services in 2023
CMS data shows 1,301 Medicare services from Dr. Gehrs across 7 procedure codes in 2023. Medicare paid $48,908 for them. Every service was in an office.
Medicare services, 20231,301
Paid by Medicare$48,908
Procedure codes7
Dr. Gehrs' Medicare services by type, 2022 to 2023
- 2022
- 2023
- Tests and treatments
- 2022: 1,2282023: 66546%
- Surgery
- 2022: 8552023: 42850%
- Office and hospital visits
- 2022: 2772023: 20825%
Dr. Gehrs compared with the Iowa median for ophthalmologists, 2023
- Dr. Gehrs
- Iowa median
- Medicare services
- 1,301vs 1,79227% below
- Part D claims
- 224vs 39643% below
Medians across 183 ophthalmologists in Iowa with Dmand AI profiles that report each measure.
Dr. Gehrs' most billed Medicare procedure codes, 2023
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gehrs and other ophthalmologists in Iowa.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Karen M. Gehrs' patients have a median age of 78
Across all payers, Dmand AI patient panel data puts Dr. Gehrs' median patient age at 78, with 40% women.
Dr. Gehrs' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 78
Patient panel by sex, all payers
- Women40%
- Men60%
Source: Dmand AI Patient Panel Data
Dr. Karen M. Gehrs wrote 18 Medicare Part D claims in 2024
In 2024, Dr. Gehrs wrote 18 Medicare Part D claims. 94% of them were for generic drugs. They cover 5 drugs, with $9,859 in total drug cost. In 2022, CMS named 288 claims across 7 drugs.
Part D claims, 202418
Drugs named by CMS5
Total drug cost$9,859
Dr. Gehrs' Part D claims by kind of drug, 2024
- Generic17 claims94%
- Brand-name and other1 claims6%
Dr. Gehrs' most prescribed drugs by claims, 2023
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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 2882023: 22422%
Drugs named by CMS: 5 in 2023, 7 in 2022.
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
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Dr. Karen M. Gehrs has 28 publications on record
Dmand AI links 28 papers to Dr. Gehrs, published from 2010 to 2024. 2014 was the busiest year, with 3. The most frequent topics are Macular Degeneration, Visual Acuity and Carotenoids. Dr. Gehrs has published most often in Ophthalmol Retina. Dr. Gehrs' most frequent co-authors are Herbert Culver Boldt, MD, James C. Folk, MD and Stephen R. Russell, MD.
Papers28
Years published2010 to 2024
Dr. Gehrs' papers by year, 2010 to 2024
Topics Dr. Gehrs writes about most
- Macular Degeneration
- Visual Acuity
- Carotenoids
- Vitrectomy
- Fundus Oculi
- Intravitreal Injections
- Phenotype
- Polymorphism, Single Nucleotide
Dr. Gehrs' most frequent co-authors
- Herbert Culver Boldt, MD9 shared papers
- James C. Folk, MD9 shared papers
- Stephen R. Russell, MD9 shared papers
Recent publications by Dr. Gehrs
Ophthalmol Retina
Eye InjuriesTrauma Severity IndicesVisual Acuity
Intrafamilial Variability of Ocular Manifestations of von Hippel-Lindau Disease (opens in a new tab)
Ophthalmol Retina
Disease ManagementDNADNA Mutational Analysis
AntioxidantsCarotenoidsFluorescein Angiography
Diabetic RetinopathyRetinal DetachmentVisual Acuity
See who Dr. Gehrs researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Gehrs 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. Karen M. Gehrs graduated from University of Missouri, Columbia School of Medicine
Dr. Gehrs graduated from University of Missouri, Columbia School of Medicine in 1987.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Karen M. Gehrs'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 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 Data |
| 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Karen M. Gehrs
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. Karen M. Gehrs' NPI number?
Dr. Karen M. Gehrs' NPI number is 1669473732. It was assigned on August 10, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Karen M. Gehrs?
Dr. Karen M. Gehrs is an ophthalmologist in Iowa City, Iowa. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Karen M. Gehrs practice?
Dr. Gehrs practices at 200 Hawkins Dr, Iowa City, IA 52242. Dr. Gehrs' primary practice is University of Iowa Hospital & Clinics in Iowa City, Iowa.
What is Dr. Karen M. Gehrs' office phone number?
The practice phone on file for Dr. Gehrs is (319) 356-1616.
What is Dr. Karen M. Gehrs' medical license number?
Dr. Gehrs holds Iowa license 31408, one of the licenses on file in 2 states.
Which states has Dr. Karen M. Gehrs been licensed in?
Dmand AI has state licenses on file for Dr. Gehrs in Iowa and Florida.
Does Dr. Karen M. Gehrs accept Medicare?
Yes. CMS data shows Dr. Gehrs billed Medicare for 1,301 services in 2023.
What services does Dr. Karen M. Gehrs bill to Medicare?
In 2023, Dr. Gehrs' most billed Medicare services were eye exam or test (92134), surgery: eye (67028) and office visit, established patient (99213).
Where did Dr. Karen M. Gehrs go to medical school?
Dr. Gehrs graduated from University of Missouri, Columbia School of Medicine in 1987.
What drugs does Dr. Karen M. Gehrs prescribe most?
In 2023 Medicare Part D data, Dr. Gehrs' most prescribed drugs by claims were Ketorolac Tromethamine, Prednisolone Acetate and Acetazolamide.
Show 3 more questionsShow fewer questions
How long has Dr. Karen M. Gehrs been practicing?
Dr. Gehrs graduated from medical school in 1987, 39 years ago.
Does Dr. Karen M. Gehrs do research?
Dmand AI links 28 publications to Dr. Gehrs, published from 2010 to 2024.
Who does Dr. Karen M. Gehrs publish with?
Dr. Gehrs' most frequent co-authors are Herbert Culver Boldt, MD (9 shared papers), James C. Folk, MD (9 shared papers) and Stephen R. Russell, MD (9 shared papers).
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