Mark Andrew Sierra, RPH
Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist · Tucson, AZ
Mark Andrew Sierra, RPH is a pharmacist clinician (phc)/ clinical pharmacy specialist with a practice address in Tucson, Arizona, and NPI 1003132358, issued on Apr 12, 2010. Check the license (Arizona 8908, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark Andrew Sierra
- Credential
- RPH
- Primary taxonomy
- Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist 1835P0018X
- License number
- 8908 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 7050 E Golf Links RD, Tucson, AZ 85730
- Phone
- (520) 745-2205
- Enumerated
- Apr 12, 2010
- Record last updated
- Jun 17, 2026
- Fax
- (520) 750-9698
- Entity
- Type 1 · individual
8 nearest pharmacist clinician (phc)/ clinical pharmacy specialist records → All 427 in Arizona → Look up another NPI →
Also registered at 7050 E Golf Links RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ashley Gregg, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1205350790
- Thomas Jones, RPHPharmacist1639495757
- Tina Tran, PHARM.DPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1942551296
Verify Mark Andrew Sierra in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license 8908Check 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
202 Medicare Part D claims for 158 beneficiaries, against an average of 253 among the 1,614 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.
- Shingrix107 claims
- Abrysvo51 claims
- Boostrix Tdap24 claims
- Arexvy19 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 Andrew Sierra among 427 pharmacist clinician (phc)/ clinical pharmacy specialist records in Arizona
Mark Andrew Sierra, RPH is one of 427 pharmacist clinician (phc)/ clinical pharmacy specialist records with a practice address in Arizona. 38% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 18% of them.
- NPI issued2010 · 18% of these records are older, 73% newer
- In a Medicare fileYes · 38% of these records are
- In the CMS Doctors and Clinicians fileNo · 0% of these records are
- Record last updated2026 · 43% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1835P0018X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist providers in Arizona
There are 427 pharmacist clinician (phc)/ clinical pharmacy specialist records in Arizona.
All 427 in Arizona → Every provider in Tucson → Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist nationwide →
The 8 pharmacist clinician (phc)/ clinical pharmacy specialist records with the nearest ZIP codes
- Ahmed Al-Tyar, PHARMDTucson, AZ 857301871889972
- Ashley Gregg, PHARMDTucson, AZ 857301205350790
- Tina Tran, PHARM.DTucson, AZ 857301942551296
- Nicole Scovis, PHARM.D.Tucson, AZ 857311306806229
- Connie Chan, PHARMDTucson, AZ 857241013325745
- George NawasTucson, AZ 857241235655424
- Phillip Yamauchi, PHARMD, PHC, CDETucson, AZ 857241023505302
- Princess Ananti, PHARMDTucson, AZ 857231932773355
Common questions
What is Mark Andrew Sierra, RPH's NPI number?
Mark Andrew Sierra, RPH's National Provider Identifier (NPI) is 1003132358, issued on Apr 12, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Mark Andrew Sierra, RPH located?
The NPPES record lists a practice address at 7050 E Golf Links RD, Tucson, AZ, 85730. Phone: (520) 745-2205. Providers update this record themselves, so call before visiting.
How can I verify Mark Andrew Sierra, RPH's license?
NPPES lists Arizona license number 8908, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
How much does Mark Andrew Sierra, RPH prescribe under Medicare Part D?
In 2024, Mark Andrew Sierra, RPH had 202 Medicare Part D claims for 158 beneficiaries; the average among pharmacist clinician (phc)/ clinical pharmacy specialist prescribers was 253. 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.