2026 NPPES data Pharmacist NPI 1285344366 PHARM.D.
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ANN GONZALEZ PINEIRO, PHARM.D.

Pharmacist in GURABO, Puerto Rico. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
58
Medicare Part D claims · 53 beneficiaries · Pharmacist avg: 135
Generic prescribing
2%
generic claims · 98% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

ANN GONZALEZ PINEIRO, PHARM.D. filed 58 Medicare Part D claims in 2023 as a Pharmacist in GURABO, Puerto Rico, prescribing 2% generic.

58
Part D claims, 2023
2%
generic prescribing

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.

ANN GONZALEZ PINEIRO, PHARM.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

58 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about ANN GONZALEZ PINEIRO, PHARM.D.?

Quality data not reported

NPI registry status

Active

Issued 11/30/2022

NPI 1285344366

Primary specialty

Pharmacist

High-volume

290,447 US NPIs in this specialty

Medicare Part D claims

58 57% vs specialty avg

2023 prescription claims

Specialty avg: 135

Specialty distribution in Puerto Rico

How Pharmacist compares to other specialties among Puerto Rico providers

Puerto Rico providers

Pharmacist share within Puerto Rico

1. Pharmacist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Pharmacist share within Puerto Rico

Specialty board-certification context

Estimated specialty board-certified rate — Pharmacist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Pharmacist ABMS/AOA estimate

Est. board-certified rate (Pharmacist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Pharmacist) — ABMS / AOA estimate

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).

ANN GONZALEZ PINEIRO, PHARM.D. appears in the CMS NPPES registry as a Pharmacist provider holding PHARM.D. credentials at CARR. 941 CALLE SAN ANTONIO FINAL, GURABO, PR, 00778, with a listed phone of (787) 737-2111. NPI 1285344366 was issued on 11/30/2022. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GONZALEZ PINEIRO most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 58 prescription claims written by this provider, covering 53 Medicare beneficiaries and totaling roughly $11K in drug spend, split 98% brand-name and 2% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Pharmacist is a high-volume specialty nationwide, with 290,447 enrolled providers across 56 states and an average of 135 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

CARR. 941 CALLE SAN ANTONIO FINAL
GURABO, PR 00778

Provider Details

NPI 1285344366
Specialty Pharmacist
Credentials PHARM.D.
Gender Female
NPI Issued 11/30/2022

Brand vs generic prescribing mix · Brand-heavy

ANN GONZALEZ PINEIRO, PHARM.D. — brand share 98.0%
Specialty average (est.)

98% brand-name claims vs 2% generic, on 58 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

58
Total Claims
$11K
Total Drug Cost
53
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
58
Total Day Supply
87
Brand vs Generic
98% brand / 2% generic
Brand Drug Cost
$11K

Patient Demographics

Average Patient Age
71.9 years
Avg HCC Risk Score
1.30
Gender Split
55% female / 45% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Shingrix
Varicella-Zoster Ge/As01b/Pf
38
Boostrix Tdap
"Diphth
N/A

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Pharmacist Overview

How ANN GONZALEZ PINEIRO, PHARM.D. fits within the Pharmacist landscape nationally.

290,447
Pharmacist Providers in US
56
States with Pharmacist
135
Avg Claims per Provider

ANN GONZALEZ PINEIRO, PHARM.D.'s 58 claims are below the specialty average of 135.

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 GONZALEZ PINEIRO.

Compare Pharmacist nationally: see state-by-state distribution →

Frequently Asked Questions

What is ANN GONZALEZ PINEIRO, PHARM.D.'s specialty?
ANN GONZALEZ PINEIRO, PHARM.D. specializes in Pharmacist and practices in GURABO, Puerto Rico. Credentials: PHARM.D..
How much does ANN GONZALEZ PINEIRO, PHARM.D. prescribe under Medicare Part D?
In 2023, ANN GONZALEZ PINEIRO, PHARM.D. wrote 58 Medicare Part D claims totaling $11K in drug costs for 53 beneficiaries.
Where is ANN GONZALEZ PINEIRO, PHARM.D. located?
ANN GONZALEZ PINEIRO, PHARM.D. is located at CARR. 941 CALLE SAN ANTONIO FINAL, GURABO, PR, 00778. Phone: (787) 737-2111.
What is ANN GONZALEZ PINEIRO, PHARM.D.'s NPI number?
ANN GONZALEZ PINEIRO, PHARM.D.'s National Provider Identifier (NPI) is 1285344366, issued on 11/30/2022.
Does ANN GONZALEZ PINEIRO, PHARM.D. prescribe more brand-name or generic drugs?
ANN GONZALEZ PINEIRO, PHARM.D.'s prescribing is 98% brand-name and 2% generic drugs by claim count, with $11K in brand drug costs.
How many Pharmacist providers are there in the US?
There are 290,447 Pharmacist providers across 56 states in the US. The average Pharmacist provider writes 135 Medicare Part D claims per year.
What drugs does ANN GONZALEZ PINEIRO, PHARM.D. prescribe most often?
Based on 2023 Medicare Part D data, ANN GONZALEZ PINEIRO, PHARM.D.'s most frequently prescribed drugs include Shingrix, Boostrix Tdap. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ANN GONZALEZ PINEIRO, PHARM.D. accept Medicare?
ANN GONZALEZ PINEIRO, PHARM.D. appears in CMS Medicare data with 58 Part D claims and 53 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ANN GONZALEZ PINEIRO, PHARM.D.'s credentials?
ANN GONZALEZ PINEIRO, PHARM.D.'s NPI is 1285344366 with credentials PHARM.D.. 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

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.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
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