Gregory Vernon Clodfelter, R.PH.
Pharmacist · Ottumwa, IA
Gregory Vernon Clodfelter, R.PH. is a pharmacist with a practice address in Ottumwa, Iowa, and NPI 1104448430, issued on May 8, 2020. Check the license (Iowa 20424, as entered in NPPES) with the Iowa board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregory Vernon Clodfelter
- Credential
- R.PH.
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 20424 IA
Self-reported in NPPES; status is on the state search - Practice location
- 327 W 4TH St, Ottumwa, IA 52501
- Phone
- (641) 226-5077
- Enumerated
- May 8, 2020
- Record last updated
- May 8, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (641) 226-5080
- Entity
- Type 1 · individual
8 nearest pharmacist records → All 3,179 in Iowa → Look up another NPI →
Also registered at 327 W 4TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gary Cottington, BS PHARMACYPharmacist1306127899
- Eric Rauch, PHARMDPharmacist1417384512
- Adam Reyna, PHARMD.Pharmacist1487922217
- Janeva Van Haaften, PHARM DPharmacist1043580012
- Shavea Zapata Juan, PHARMDPharmacist1497268619
Verify Gregory Vernon Clodfelter in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Iowa board licenses this profession
Search for license 20424Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Most of these Medicare Part D claims are vaccines, 100% of the cost of the top drugs
65 Medicare Part D claims for 47 beneficiaries, against an average of 119 among the 28,524 providers of this specialty who prescribed in Part D. Brand-name drugs were 100% of claims.
Most prescribed
Pharmacies often give vaccines under a standing order that names one clinician, and CMS counts every such claim under that clinician's NPI. These claims are therefore not a measure of this clinician's own prescribing.
- Shingrix29 claims
- Abrysvo27 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.
Gregory Vernon Clodfelter among 3,179 pharmacist records in Iowa
Gregory Vernon Clodfelter, R.PH. is one of 3,179 pharmacist records with a practice address in Iowa. 34% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 59% of them.
- NPI issued2020 · 59% of these records are older, 22% newer
- In a Medicare fileYes · 34% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2020 · 75% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 183500000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
29 pharmacist records list a practice address in Ottumwa
They are 29 of the 405 NPPES records with a practice address in Ottumwa, and 3,179 pharmacist records in Iowa.
All 3,179 in Iowa → Every provider in Ottumwa → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Wendy Barker, PHARMDOttumwa, IA 525011144352477
- David Bunce, RPH.Ottumwa, IA 525011093830317
- Kimberly Burton, RPH, PHARM DOttumwa, IA 525011457570046
- Jonathan Caston, PHARMDOttumwa, IA 525011710463724
- Gary Cottington, BS PHARMACYOttumwa, IA 525011306127899
- Ron Hartman, PHARMDOttumwa, IA 525011255455168
- Kerry Hogan, PHARM D.Ottumwa, IA 525011538142583
- Joseph Miller, PHARMDOttumwa, IA 525011558548941
Common questions
What is Gregory Vernon Clodfelter, R.PH.'s NPI number?
Gregory Vernon Clodfelter, R.PH.'s National Provider Identifier (NPI) is 1104448430, issued on May 8, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Vernon Clodfelter, R.PH. located?
The NPPES record lists a practice address at 327 W 4TH St, Ottumwa, IA, 52501. Phone: (641) 226-5077. Providers update this record themselves, so call before visiting.
How can I verify Gregory Vernon Clodfelter, R.PH.'s license?
NPPES lists Iowa license number 20424, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.
How much does Gregory Vernon Clodfelter, R.PH. prescribe under Medicare Part D?
In 2024, Gregory Vernon Clodfelter, R.PH. had 65 Medicare Part D claims for 47 beneficiaries; the average among pharmacist prescribers was 119. 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.