Claire Ashley Holtz, RPH
Pharmacist · Waterloo, IA
Claire Ashley Holtz, RPH is a pharmacist with a practice address in Waterloo, Iowa, and NPI 1659054674, issued on Aug 8, 2023. Check the license (Iowa 24791, as entered in NPPES) with the Iowa board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Claire Ashley Holtz
- Credential
- RPH
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 24791 IA
Self-reported in NPPES; status is on the state search - Practice location
- 1825 E San Marnan Dr, Waterloo, IA 50702
- Phone
- (319) 235-6248
- Enumerated
- Aug 8, 2023
- Record last updated
- Aug 8, 2023
- Entity
- Type 1 · individual
8 nearest pharmacist records → All 3,179 in Iowa → Look up another NPI →
Also registered at 1825 E San Marnan Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Claire Ashley Holtz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Iowa board licenses this profession
Search for license 24791Check 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, 95% of the cost of the top drugs
156 Medicare Part D claims for 136 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.
- Arexvy77 claims
- Shingrix48 claims
- Boostrix Tdap29 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.
Claire Ashley Holtz among 3,179 pharmacist records in Iowa
Claire Ashley Holtz, RPH 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 2023, is newer than 87% of them.
- NPI issued2023 · 87% of these records are older, 9% 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 updated2023 · 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).
115 pharmacist records list a practice address in Waterloo
They are 115 of the 1,512 NPPES records with a practice address in Waterloo, and 3,179 pharmacist records in Iowa.
All 3,179 in Iowa → Every provider in Waterloo → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Joseph Anderegg, PHARMDWaterloo, IA 507021871672170
- Jon Beyer, BS PHARM, R. PH.Waterloo, IA 507021801005574
- Jennifer Clayton, PHARMDWaterloo, IA 507021578513891
- Sandra EagleWaterloo, IA 507021548555444
- Alisha Eggers, PHARMDWaterloo, IA 507021811226541
- Robert Greenwood, RPHWaterloo, IA 507021770533002
- Kristi Kavanaugh, PHARM.D.Waterloo, IA 507021477748937
- Dennis Kitzman, PHARMDWaterloo, IA 507021972892743
Common questions
What is Claire Ashley Holtz, RPH's NPI number?
Claire Ashley Holtz, RPH's National Provider Identifier (NPI) is 1659054674, issued on Aug 8, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Claire Ashley Holtz, RPH located?
The NPPES record lists a practice address at 1825 E San Marnan Dr, Waterloo, IA, 50702. Phone: (319) 235-6248. Providers update this record themselves, so call before visiting.
How can I verify Claire Ashley Holtz, RPH's license?
NPPES lists Iowa license number 24791, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.
How much does Claire Ashley Holtz, RPH prescribe under Medicare Part D?
In 2024, Claire Ashley Holtz, RPH had 156 Medicare Part D claims for 136 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.