Dr. Derek P. Bitner, MD
- Medicare services, 2024
- 511
- Medicare patients, 2024
- 222
- Part D claims, 2024
- 153
- Industry payments
- $2,548
- Medical group
- 1
- 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. Bitner'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. Derek P. Bitner is an ophthalmologist in Marshalltown, Iowa
Dr. Bitner practices at Wolfe Eye Clinic- Marshalltown in Marshalltown, Iowa.
Dr. Bitner's NPI, 1134414709, was assigned on June 12, 2011. Dr. Bitner graduated from Baylor College of Medicine in 2011. Dr. Bitner holds Iowa license MD-43354.
- NPI
- 1134414709NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1850609538
- NPI enumeration date
- June 12, 2011
- 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
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Derek P. Bitner practices at Wolfe Eye Clinic- Marshalltown in Marshalltown, Iowa
Dr. Bitner'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. Derek P. Bitner is affiliated with 1 site of care and 1 medical group
Dr. Bitner's primary practice is Wolfe Eye Clinic- Marshalltown in Marshalltown, Iowa. Dmand AI also links Dr. Bitner 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. Derek P. Bitner's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bitner 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. Derek P. Bitner is one of 180 ophthalmologists in Iowa
Ophthalmology is Dr. Bitner's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Bitner is licensed in Iowa.
Specialties and state licenses
- Ophthalmology, IowaPrimary
Ophthalmologists near Dr. Bitner
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. Derek P. Bitner billed Medicare for 511 services in 2024
CMS data shows 511 Medicare services from Dr. Bitner across 9 procedure codes in 2024, for 222 Medicare patients. Medicare paid $38,369 for them.
Dr. Bitner's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3202024: 2929%
- Tests and treatments
- 2023: 1882024: 1852%
- Surgery
- 2023: 372024: 348%
Where Dr. Bitner's Medicare services took place, 2024
- In an office47793%
- In a facility347%
Dr. Bitner compared with the Iowa median for ophthalmologists, 2024
- Dr. Bitner
- Iowa median
- Medicare services
- 511vs 1,79271% below
- Medicare patients
- 222vs 66967% below
- Part D claims
- 143vs 39664% below
Medians across 183 ophthalmologists in Iowa with Dmand AI profiles that report each measure.
Dr. Bitner'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Bitner and other ophthalmologists in Iowa.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Derek P. Bitner treated 222 Medicare patients in 2024, average age 75
CMS counts 222 Medicare patients who saw Dr. Bitner in 2024. The largest group is 75 to 84, with 91 patients. 75% of them have high cholesterol, and 69% have high blood pressure. 6% are also on Medicaid. Their average risk score is 1.09, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Bitner's median patient age at 10, with 50% women.
Dr. Bitner's Medicare patients by age, 2024
Dr. Bitner's Medicare patients by sex, 2024
- Women11753%
- Men10547%
Chronic conditions among Dr. Bitner's Medicare patients, 2024
- High cholesterol75%
- High blood pressure69%
- Arthritis44%
- Ischemic heart disease27%
- Mood disorders26%
- Chronic kidney disease24%
- Depression24%
- Diabetes23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Bitner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 10
Patient panel by sex, all payers
- Women50%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Derek P. Bitner wrote 153 Medicare Part D claims in 2024
In 2024, Dr. Bitner wrote 153 Medicare Part D claims for 45 patients. 92% of them were for generic drugs. CMS names the drug for 143 of them, across 3 drugs with 11 or more claims each, at $1,292 in total drug cost. In 2023, CMS named 131 claims across 2 drugs.
Dr. Bitner's Part D claims by kind of drug, 2024
- Generic140 claims92%
- Brand-name13 claims8%
Dr. Bitner'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: 1312024: 1439%
Drugs named by CMS: 3 in 2024, 2 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. Derek P. Bitner takes part in Medicare
Dr. Bitner 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. Derek P. Bitner received $2,548 in industry payments from 2019 to 2024
CMS Open Payments shows 7 general payments to Dr. Bitner from 3 drug and device companies from 2019 to 2024. Ownership or investment make up the largest share, 94% of the total. US Retina LLC paid the most, $2,403.
General payments to Dr. Bitner by program year, 2019 to 2024
General payments to Dr. Bitner by kind, 2019 to 2024
- Ownership or investment$2,40394%
- Food and beverage$1456%
Companies that paid Dr. Bitner the most, 2019 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Derek P. Bitner graduated from Baylor College of Medicine
Dr. Bitner graduated from Baylor College of Medicine in 2011.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Derek P. Bitner'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) |
| 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. Derek P. Bitner
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. Derek P. Bitner's NPI number?
Dr. Derek P. Bitner's NPI number is 1134414709. It was assigned on June 12, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Derek P. Bitner?
Dr. Derek P. Bitner is an ophthalmologist in Marshalltown, Iowa. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Derek P. Bitner practice?
Dr. Bitner practices at 309 E Church St, Marshalltown, IA 50158. Dr. Bitner's primary practice is Wolfe Eye Clinic- Marshalltown in Marshalltown, Iowa. Dmand AI also links Dr. Bitner to 1 medical group.
What is Dr. Derek P. Bitner's office phone number?
The practice phone on file for Dr. Bitner is (641) 754-6200.
What is Dr. Derek P. Bitner's medical license number?
Dr. Bitner holds Iowa license MD-43354.
Does Dr. Derek P. Bitner accept Medicare?
Yes. CMS data shows Dr. Bitner billed Medicare for 511 services in 2024, and Dr. Bitner accepts Medicare assignment.
How many Medicare patients does Dr. Derek P. Bitner see?
CMS counts 222 Medicare patients who saw Dr. Bitner in 2024, with an average age of 75.
What services does Dr. Derek P. Bitner bill to Medicare?
In 2024, Dr. Bitner's most billed Medicare services were office visit, established patient (99213), eye exam or test (92060) and office visit, new patient (99203).
Where did Dr. Derek P. Bitner go to medical school?
Dr. Bitner graduated from Baylor College of Medicine in 2011.
What drugs does Dr. Derek P. Bitner prescribe most?
In 2024 Medicare Part D data, Dr. Bitner's most prescribed drugs by claims were Neomycin-Polymyxin-Dexameth, Ondansetron HCl and Ondansetron ODT.
Has Dr. Derek P. Bitner received payments from drug or device companies?
CMS Open Payments shows $2,548 in general payments to Dr. Bitner from 3 companies from 2019 to 2024. The largest total came from US Retina LLC.
How long has Dr. Derek P. Bitner been practicing?
Dr. Bitner graduated from medical school in 2011, 15 years ago.
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