2026 NPPES data Pharmacist NPI 1386785608
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LIANA DIAZ VELAZQUEZ

Pharmacist in COTO LAUREL, 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
93
Medicare Part D claims · 67 beneficiaries · Pharmacist avg: 135
Generic prescribing
1%
generic claims · 99% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

LIANA DIAZ VELAZQUEZ filed 93 Medicare Part D claims in 2023 as a Pharmacist in COTO LAUREL, Puerto Rico, prescribing 1% generic.

93
Part D claims, 2023
1%
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.

LIANA DIAZ VELAZQUEZ's Medicare Part D volume vs every U.S. prescriber

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

93 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 LIANA DIAZ VELAZQUEZ?

Quality data not reported

NPI registry status

Active

Issued 02/09/2007

NPI 1386785608

Primary specialty

Pharmacist

High-volume

290,447 US NPIs in this specialty

Medicare Part D claims

93 31% 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).

LIANA DIAZ VELAZQUEZ appears in the CMS NPPES registry as a Pharmacist provider at PO BOX 801260, COTO LAUREL, PR, 00780, with a listed phone of (787) 366-3288. NPI 1386785608 was issued on 02/09/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DIAZ VELAZQUEZ 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 93 prescription claims written by this provider, covering 67 Medicare beneficiaries and totaling roughly $15K in drug spend, split 99% brand-name and 1% 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

PO BOX 801260
COTO LAUREL, PR 00780

Provider Details

NPI 1386785608
Specialty Pharmacist
Gender Female
NPI Issued 02/09/2007

Brand vs generic prescribing mix · Brand-heavy

LIANA DIAZ VELAZQUEZ — brand share 99.0%
Specialty average (est.)

99% brand-name claims vs 1% generic, on 93 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.

93
Total Claims
$15K
Total Drug Cost
67
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
93
Total Day Supply
122
Brand vs Generic
99% brand / 1% generic
Brand Drug Cost
$15K

Patient Demographics

Average Patient Age
71.1 years
Avg HCC Risk Score
1.78
Gender Split
49% female / 51% 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
55
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 LIANA DIAZ VELAZQUEZ fits within the Pharmacist landscape nationally.

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

LIANA DIAZ VELAZQUEZ's 93 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 DIAZ VELAZQUEZ.

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

Frequently Asked Questions

What is LIANA DIAZ VELAZQUEZ's specialty?
LIANA DIAZ VELAZQUEZ specializes in Pharmacist and practices in COTO LAUREL, Puerto Rico.
How much does LIANA DIAZ VELAZQUEZ prescribe under Medicare Part D?
In 2023, LIANA DIAZ VELAZQUEZ wrote 93 Medicare Part D claims totaling $15K in drug costs for 67 beneficiaries.
Where is LIANA DIAZ VELAZQUEZ located?
LIANA DIAZ VELAZQUEZ is located at PO BOX 801260, COTO LAUREL, PR, 00780. Phone: (787) 366-3288.
What is LIANA DIAZ VELAZQUEZ's NPI number?
LIANA DIAZ VELAZQUEZ's National Provider Identifier (NPI) is 1386785608, issued on 02/09/2007.
Does LIANA DIAZ VELAZQUEZ prescribe more brand-name or generic drugs?
LIANA DIAZ VELAZQUEZ's prescribing is 99% brand-name and 1% generic drugs by claim count, with $15K 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 LIANA DIAZ VELAZQUEZ prescribe most often?
Based on 2023 Medicare Part D data, LIANA DIAZ VELAZQUEZ'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 LIANA DIAZ VELAZQUEZ accept Medicare?
LIANA DIAZ VELAZQUEZ appears in CMS Medicare data with 93 Part D claims and 67 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LIANA DIAZ VELAZQUEZ's credentials?
LIANA DIAZ VELAZQUEZ's NPI is 1386785608. 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