NPI registry status
Active
2026 NPPES data Pharmacist NPI 1801499421
Verify on CMS → Kiomaris Nieves Villanueva
Pharmacist in Guaynabo, Puerto Rico.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 291,043 in Pharmacist, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
What the federal data shows
Kiomaris Nieves Villanueva is a Pharmacist in Guaynabo, Puerto Rico, listed in the federal CMS National Provider Identifier registry.
- #3
- Pharmacist rank among Puerto Rico specialties
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Kiomaris Nieves Villanueva
Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1801499421), first enumerated 11/17/2020.
Source: CMS NPPES
- Not in federal data
Medicare Part D participation
No 2023 Medicare Part D prescribing volume appears in the CMS public file for this NPI (may reflect specialty, new enrollment, or non-prescribing role).
Source: CMS Part D Prescriber PUF
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1801499421 · Pharmacist
NPI-10 · ENUM-RECENT · TAX-MEGA · RX-NONE · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1801499421
- ENUM-RECENT 2020
- TAX-MEGA 291K Pharmacist
- RX-NONE No Part D
- BOOK-LIGHT 3,136 in Puerto Rico
- PHOTO-ENUM Bradley Heiken · 2020
What does the federal data show about Kiomaris Nieves Villanueva?
Quality data not reportedPrimary specialty
Pharmacist
Specialty distribution in Puerto Rico
How Pharmacist compares to other specialties among Puerto Rico providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Pharmacist. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1801499421 |
|---|---|
| Specialty | Pharmacist |
| Gender | Female |
| NPI Issued | 11/17/2020 |
Pharmacist Overview
How Kiomaris Nieves Villanueva fits within the Pharmacist landscape nationally.
291,043
Pharmacist Providers in US
56
States with Pharmacist
135
Avg Claims per Provider
Nationwide Pharmacist peers with similar MIPS or enrollment year
Two federal-record peer sets for Nieves Villanueva, both outside Puerto Rico so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2020)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Pharmacist Providers in Puerto Rico
Other clinicians with the same primary specialty enrolled in Puerto Rico, drawn from the same CMS NPPES roster as Nieves Villanueva.
One of 3,136 Pharmacist providers enrolled in Puerto Rico, 5 are shown here.
Dr. Gilda Abad
RPH
San Juan, PR
Dr. Hiba Aboukheir
PHARMD
Rio Grande, PR
Dr. Nicole Abrams Santiago
PHARMD
San Juan, PR
Dr. Damaris Abreu
RPH
Isabela, PR
Dr. Sonia Abreu
RPH
Isabela, PR
Compare Pharmacist nationally: see state-by-state distribution →
Frequently Asked Questions
What is Kiomaris Nieves Villanueva's specialty? ▼
Kiomaris Nieves Villanueva specializes in Pharmacist and practices in Guaynabo, Puerto Rico.
Where is Kiomaris Nieves Villanueva located? ▼
Kiomaris Nieves Villanueva is located at 35 CALLE JUAN C BORBON STE 77, Guaynabo, PR, 00969. Phone: (787) 287-3725.
What is Kiomaris Nieves Villanueva's NPI number? ▼
Kiomaris Nieves Villanueva's National Provider Identifier (NPI) is 1801499421, issued on 11/17/2020.
How many Pharmacist providers are there in the US? ▼
There are 291,043 Pharmacist providers across 56 states in the US. The average Pharmacist provider writes 135 Medicare Part D claims per year.
Does Kiomaris Nieves Villanueva accept Medicare? ▼
Kiomaris Nieves Villanueva appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kiomaris Nieves Villanueva's credentials? ▼
Kiomaris Nieves Villanueva's NPI is 1801499421. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.