NPPES file of Aug 9, 2026

Ione Clair Walker, PHARMD

Pharmacist · Troy, MI

Ione Clair Walker, PHARMD is a pharmacist with a practice address in Troy, Michigan, and NPI 1467749093, issued on Jul 4, 2011. Check the license (Michigan 5302038345, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1467749093
Name
Ione Clair Walker
Credential
PHARMD
Primary taxonomy
Pharmacist 183500000X
License number
5302038345 MI
Self-reported in NPPES; status is on the state search
Practice location
6890 Duchess CT, Troy, MI 48098
Phone
(734) 776-6905
Enumerated
Jul 4, 2011
Record last updated
Jul 4, 2011 (not updated in 15 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Ione Clair Walker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Michigan board licenses this profession
    Search for license 5302038345
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Michigan license search

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Most of these Medicare Part D claims are vaccines, 93% of the cost of the top drugs

120 Medicare Part D claims for 99 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.

  1. Ione Walker120
  2. Specialty average119

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.

  1. Shingrix64 claims
  2. Arexvy24 claims
  3. Boostrix Tdap24 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.

Ione Clair Walker among 8,370 pharmacist records in Michigan

Ione Clair Walker, PHARMD is one of 8,370 pharmacist records with a practice address in Michigan. 2% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 22% of them.

  • NPI issued2011 · 22% of these records are older, 65% newer
  • In a Medicare fileYes · 2% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2011 · 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

119 pharmacist records list a practice address in Troy

They are 119 of the 3,809 NPPES records with a practice address in Troy, and 8,370 pharmacist records in Michigan.

The 8 pharmacist records with the nearest ZIP codes

  1. Sandra Amin YassaTroy, MI 480981508439894
  2. Garrette Belanger, PHARMDTroy, MI 480981104268374
  3. Mark Essak, PHARM.D.Troy, MI 480981346483179
  4. Mark Krajewski, RPHTroy, MI 480981790322501
  5. Tomoko LivingstoneTroy, MI 480981932341328
  6. Jaya MathaiTroy, MI 480981134751548
  7. Peter Matta, RPHTroy, MI 480981619658424
  8. Bradley McCloskey, PHARMDTroy, MI 480981356490494

Common questions

What is Ione Clair Walker, PHARMD's NPI number?

Ione Clair Walker, PHARMD's National Provider Identifier (NPI) is 1467749093, issued on Jul 4, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Ione Clair Walker, PHARMD located?

The NPPES record lists a practice address at 6890 Duchess CT, Troy, MI, 48098. Phone: (734) 776-6905. Providers update this record themselves, so call before visiting.

How can I verify Ione Clair Walker, PHARMD's license?

NPPES lists Michigan license number 5302038345, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.

How much does Ione Clair Walker, PHARMD prescribe under Medicare Part D?

In 2024, Ione Clair Walker, PHARMD had 120 Medicare Part D claims for 99 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.