John Charles Frederick, MD
Ophthalmology Physician · Bettendorf, IA
John Charles Frederick, MD is an ophthalmology physician with a practice address in Bettendorf, Iowa, and NPI 1043297492, issued on Dec 28, 2005. Check the license (Iowa 32467, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- John Charles Frederick
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License numbers
- 32467 IA
036-098033 IL
Self-reported in NPPES; status is on the state search - Practice location
- 777 Tanglefoot LN, Bettendorf, IA 52722
- Phone
- (563) 323-2020
- Enumerated
- Dec 28, 2005
- Record last updated
- Aug 14, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (563) 328-5694
- Medicaid IDs
- 0170860 IA
036098033 IL - Medicare enrollment
- Enrolled (PECOS I20050601001038); accepts Medicare assignment
- Medical or professional school
- University Of Iowa, Rj & L Carver College Of Medicine, 1993
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 220 in Iowa → Look up another NPI →
Also registered at 777 Tanglefoot LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amir Arbisser, MDOphthalmology Physician1548247992
- Lisa Arbisser, M.D.Ophthalmology Physician1528060084
- Paul Arnold, MDOphthalmology Physician1467430355
- Scott Baldwin, O.D.Optometrist1366794695
- Connor Davenport, MDOphthalmology Physician1063918217
- Tina Eckhardt, M.D.Ophthalmology Physician1952373383
Verify John Charles Frederick in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license 32467Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average ophthalmology physician in 2024
91 Medicare Part D claims for 46 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 40% of claims.
Most prescribed
- Latanoprost12 claims
- Combigan11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 75.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Eye Surgeons Associates PCRock Island, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Charles Frederick among 220 ophthalmology physician records in Iowa
John Charles Frederick, MD is one of 220 ophthalmology physician records with a practice address in Iowa. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 75% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated1993 · median 2006 among the 123 with a school on file
- Record last updated2018 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 ophthalmology physician records list a practice address in Bettendorf
They are 12 of the 761 NPPES records with a practice address in Bettendorf, and 220 ophthalmology physician records in Iowa.
All 220 in Iowa → Every provider in Bettendorf → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Lisa Arbisser, M.D.Bettendorf, IA 527221528060084
- Amir Arbisser, MDBettendorf, IA 527221548247992
- Paul Arnold, MDBettendorf, IA 527221467430355
- William Benevento, MDBettendorf, IA 527221134106594
- Connor Davenport, MDBettendorf, IA 527221063918217
- Tina Eckhardt, M.D.Bettendorf, IA 527221952373383
- Carlton Fenzl, M.D.Bettendorf, IA 527221386958064
- Michael Howcroft, MDBettendorf, IA 527221932186277
Common questions
What is John Charles Frederick, MD's NPI number?
John Charles Frederick, MD's National Provider Identifier (NPI) is 1043297492, issued on Dec 28, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John Charles Frederick, MD located?
The NPPES record lists a practice address at 777 Tanglefoot LN, Bettendorf, IA, 52722. Phone: (563) 323-2020. Providers update this record themselves, so call before visiting.
How can I verify John Charles Frederick, MD's license?
NPPES lists Iowa license number 32467, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Charles Frederick, MD prescribe under Medicare Part D?
In 2024, John Charles Frederick, MD had 91 Medicare Part D claims for 46 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is John Charles Frederick, MD's MIPS final score?
The 2023 MIPS final score is 75.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.