Edna Cristina Diaz-Sierra, PHARMD
Pharmacist · Guaynabo, PR
Edna Cristina Diaz-Sierra, PHARMD is a pharmacist with a practice address in Guaynabo, Puerto Rico, and NPI 1831586569, issued on Apr 21, 2015. Check the license (Puerto Rico 6209, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Edna Cristina Diaz-Sierra
- Credential
- PHARMD
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 6209 PR
Self-reported in NPPES; status is on the state search - Practice location
- 580 Marginal Buchanan, Guaynabo, PR 00966
- Phone
- (787) 776-2001
- Enumerated
- Apr 21, 2015
- Record last updated
- Apr 21, 2015 (not updated in 11 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest pharmacist records → All 3,180 in Puerto Rico → Look up another NPI →
Also registered at 580 Marginal Buchanan
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cynthia Capella-Capella, PHARMDPharmacist1235578345
- Sylvia CastroPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1518351840
- Hilda JuanPharmacist1962771352
- Camille Lorenzo Medrano, PHARM DPharmacist1003343476
Verify Edna Cristina Diaz-Sierra in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Puerto Rico board licenses this profession
Search for license 6209Check 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
31 Medicare Part D claims for 24 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.
- Abrysvo13 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.
Edna Cristina Diaz-Sierra among 3,180 pharmacist records in Puerto Rico
Edna Cristina Diaz-Sierra, PHARMD is one of 3,180 pharmacist records with a practice address in Puerto Rico. 19% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 55% of them.
- NPI issued2015 · 55% of these records are older, 43% newer
- In a Medicare fileYes · 19% of these records are
- In the CMS Doctors and Clinicians fileNo · 0% of these records are
- Record last updated2015 · 74% 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 Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
156 pharmacist records list a practice address in Guaynabo
They are 156 of the 2,143 NPPES records with a practice address in Guaynabo, and 3,180 pharmacist records in Puerto Rico.
All 3,180 in Puerto Rico → Every provider in Guaynabo → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Luis AcevedoGuaynabo, PR 009661790831626
- Carmen BouGuaynabo, PR 009661043461106
- Cynthia Capella-Capella, PHARMDGuaynabo, PR 009661235578345
- Maria Caraballo, RPHGuaynabo, PR 009661205129681
- Gloria De Leon, RPH.Guaynabo, PR 009661619981537
- Olga DomenechGuaynabo, PR 009661366784944
- Lourdes EsparraGuaynabo, PR 009661528194891
- Manuel Ferrer, RPHGuaynabo, PR 009661396882775
Common questions
What is Edna Cristina Diaz-Sierra, PHARMD's NPI number?
Edna Cristina Diaz-Sierra, PHARMD's National Provider Identifier (NPI) is 1831586569, issued on Apr 21, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Edna Cristina Diaz-Sierra, PHARMD located?
The NPPES record lists a practice address at 580 Marginal Buchanan, Guaynabo, PR, 00966. Phone: (787) 776-2001. Providers update this record themselves, so call before visiting.
How can I verify Edna Cristina Diaz-Sierra, PHARMD's license?
NPPES lists Puerto Rico license number 6209, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Edna Cristina Diaz-Sierra, PHARMD prescribe under Medicare Part D?
In 2024, Edna Cristina Diaz-Sierra, PHARMD had 31 Medicare Part D claims for 24 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.