John P. Ferrell, OD
Optometrist · Webster City, IA
John P. Ferrell, OD is an optometrist with a practice address in Webster City, Iowa, and NPI 1831181668, issued on Aug 18, 2005. Check the license (Iowa 02089, as entered in NPPES) with the Iowa board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John P. Ferrell
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 02089 IA
Self-reported in NPPES; status is on the state search - Practice location
- 1620 Superior St, Webster City, IA 50595
- Phone
- (515) 832-2401
- Enumerated
- Aug 18, 2005
- Record last updated
- Mar 6, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20100803000899); accepts Medicare assignment
- Medical or professional school
- Illinois College Of Optometry At Chicago, 1997
- Entity
- Type 1 · individual
8 nearest optometrist records → All 676 in Iowa → Look up another NPI →
Verify John P. Ferrell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Iowa board licenses this profession
Search for license 02089Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.1 times the Medicare Part D claims of the average optometrist in 2024
848 Medicare Part D claims for 163 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.
Most prescribed
- Latanoprost303 claims
- Dorzolamide-Timolol108 claims
- Lumigan86 claims
- Timolol Maleate63 claims
- Combigan54 claims
- Moxifloxacin52 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.
Bills Medicare through one group practice
- Mitchell County Memorial HospitalOsage, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John P. Ferrell among 676 optometrist records in Iowa
John P. Ferrell, OD is one of 676 optometrist records with a practice address in Iowa. 76% 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, 82% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1997 · median 2006 among the 462 with a school on file
- Record last updated2020 · 74% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 optometrist records list a practice address in Webster City
They are 4 of the 106 NPPES records with a practice address in Webster City, and 676 optometrist records in Iowa.
All 676 in Iowa → Every provider in Webster City → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Jake Haberman, O.D.Webster City, IA 505951790350296
- Megan Petersen, O.D.Webster City, IA 505951821343484
- James Tesdahl, ODWebster City, IA 505951912999723
- Craig Crouch, O.D.Storm Lake, IA 505881336123355
- Donovan Crouch, O.D.Storm Lake, IA 505881255315644
- Fred Dehaan, O.D.Storm Lake, IA 505881265416671
- Timothy Masters, ODStorm Lake, IA 505881871644864
- Derrick Randall, ODStorm Lake, IA 505881417309329
Common questions
What is John P. Ferrell, OD's NPI number?
John P. Ferrell, OD's National Provider Identifier (NPI) is 1831181668, issued on Aug 18, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John P. Ferrell, OD located?
The NPPES record lists a practice address at 1620 Superior St, Webster City, IA, 50595. Phone: (515) 832-2401. Providers update this record themselves, so call before visiting.
How can I verify John P. Ferrell, OD's license?
NPPES lists Iowa license number 02089, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.
How much does John P. Ferrell, OD prescribe under Medicare Part D?
In 2024, John P. Ferrell, OD had 848 Medicare Part D claims for 163 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.
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.