Mark Schellenbaum
Pharmacist · Sun City West, AZ
Mark Schellenbaum is a pharmacist with a practice address in Sun City West, Arizona, and NPI 1699257840, issued on Sep 4, 2018. Check the license (Arizona S023550, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark Schellenbaum
- Primary taxonomy
- Pharmacist 183500000X
- License number
- S023550 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 19003 N R H Johnson Blvd, Sun City West, AZ 85375
- Phone
- (623) 584-3002
- Enumerated
- Sep 4, 2018
- Record last updated
- Sep 4, 2018 (not updated in 8 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest pharmacist records → All 6,746 in Arizona → Look up another NPI →
Also registered at 19003 N R H Johnson Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Roger Clark, RPHPharmacist1205166238
- Kelsi Giacalone, PHARMDPharmacist1659748234
- Marsha Harmon, PHARM.DPharmacist1407186646
- Loreto Lobosco, RPHPharmacist1518333582
- Roxanna MoyaPharmacist1083423958
- Genella Slater, PHARMDPharmacist1780958686
Verify Mark Schellenbaum in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license S023550Check 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, 97% of the cost of the top drugs
170 Medicare Part D claims for 150 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.
- Arexvy74 claims
- Shingrix53 claims
- Abrysvo24 claims
- Boostrix Tdap16 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.
Mark Schellenbaum among 6,746 pharmacist records in Arizona
Mark Schellenbaum is one of 6,746 pharmacist records with a practice address in Arizona. 27% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 68% of them.
- NPI issued2018 · 68% of these records are older, 28% newer
- In a Medicare fileYes · 27% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2018 · 78% 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 Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
36 pharmacist records list a practice address in Sun City West
They are 36 of the 590 NPPES records with a practice address in Sun City West, and 6,746 pharmacist records in Arizona.
All 6,746 in Arizona → Every provider in Sun City West → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Thomas BethuneSun City West, AZ 853751336479468
- Jason Brummett, PHARMDSun City West, AZ 853751942586813
- John CarpenterSun City West, AZ 853751952621112
- Roger Clark, RPHSun City West, AZ 853751205166238
- Jena Drieling, PHARMDSun City West, AZ 853751295021913
- Jessi FerrellSun City West, AZ 853751023380078
- Thomas Goebig, RPH, PHARMDSun City West, AZ 853751558403295
- Marsha Harmon, PHARM.DSun City West, AZ 853751407186646
Common questions
What is Mark Schellenbaum's NPI number?
Mark Schellenbaum's National Provider Identifier (NPI) is 1699257840, issued on Sep 4, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Mark Schellenbaum located?
The NPPES record lists a practice address at 19003 N R H Johnson Blvd, Sun City West, AZ, 85375. Phone: (623) 584-3002. Providers update this record themselves, so call before visiting.
How can I verify Mark Schellenbaum's license?
NPPES lists Arizona license number S023550, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
How much does Mark Schellenbaum prescribe under Medicare Part D?
In 2024, Mark Schellenbaum had 170 Medicare Part D claims for 150 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.