2026 NPPES data Physical Medicine & Rehabilitation Physician NPI 1073580379 MD
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PRISCILLA MIESES LLAVAT, MD

Physical Medicine & Rehabilitation Physician in SAN JUAN, 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
432
Medicare Part D claims · 179 beneficiaries · Physical Medicine & Rehabilitation Physician avg: 781
Generic prescribing
97%
generic claims · 3% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

PRISCILLA MIESES LLAVAT, MD filed 432 Medicare Part D claims in 2023 as a Physical Medicine & Rehabilitation Physician in SAN JUAN, Puerto Rico, prescribing 97% generic.

432
Part D claims, 2023
97%
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.

PRISCILLA MIESES LLAVAT, MD's Medicare Part D volume vs every U.S. prescriber

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

432 Top 38% higher than 62% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). This entry sits in this band. 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

Board-eligible specialty (heuristic — not verified)

PRISCILLA MIESES LLAVAT, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about PRISCILLA MIESES LLAVAT, MD?

Quality data not reported

NPI registry status

Active

Issued 03/06/2006

NPI 1073580379

Primary specialty

Physical Medicine & Rehabilitation Physician

Mid-sized

15,306 US NPIs in this specialty

Medicare Part D claims

432 45% vs specialty avg

2023 prescription claims

Specialty avg: 781

Specialty distribution in Puerto Rico

How Physical Medicine & Rehabilitation Physician compares to other specialties among Puerto Rico providers

Puerto Rico providers

Physical Medicine & Rehabilitation Physician share within Puerto Rico

1. Physical Medicine & Rehabilitation Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Physical Medicine & Rehabilitation Physician share within Puerto Rico

Specialty board-certification context

Estimated specialty board-certified rate — Physical Medicine & Rehabilitation Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Physical Medicine & Rehabilitation Physician ABMS/AOA estimate

Est. board-certified rate (Physical Medicine & Rehabilitation Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Physical Medicine & Rehabilitation Physician) — 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).

PRISCILLA MIESES LLAVAT, MD appears in the CMS NPPES registry as a Physical Medicine & Rehabilitation Physician provider holding MD credentials at ASHFORD MEDICAL CTR, SAN JUAN, PR, 00907, with a listed phone of (787) 722-3955. NPI 1073580379 was issued on 03/06/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MIESES LLAVAT 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 432 prescription claims written by this provider, covering 179 Medicare beneficiaries and totaling roughly $7K in drug spend, split 3% brand-name and 97% 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.

Physical Medicine & Rehabilitation Physician is a mid-sized specialty nationwide, with 15,306 enrolled providers across 54 states and an average of 781 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

ASHFORD MEDICAL CTR
SAN JUAN, PR 00907

Provider Details

NPI 1073580379
Specialty Physical Medicine & Rehabilitation Physician
Credentials MD
Gender Female
NPI Issued 03/06/2006

Brand vs generic prescribing mix · Generic-heavy

PRISCILLA MIESES LLAVAT, MD — brand share 3.0%
Specialty average (est.)

3% brand-name claims vs 97% generic, on 432 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.

432
Total Claims
$7K
Total Drug Cost
179
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
516
Total Day Supply
11,638
Brand vs Generic
3% brand / 97% generic
Brand Drug Cost
$1K
Generic Drug Cost
$6K

Patient Demographics

Average Patient Age
73.4 years
Avg HCC Risk Score
1.13
Gender Split
77% female / 23% male

Top Prescribed Drugs (Medicare Part D)

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

What PRISCILLA MIESES LLAVAT, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Gabapentin
143
Diclofenac Potassium
71
Meloxicam
45
Methylprednisolone
34
Tizanidine Hcl
25
Nabumetone
19
Celecoxib
18
Duloxetine Hcl
15
Prednisone
15

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

Physical Medicine & Rehabilitation Physician Overview

How PRISCILLA MIESES LLAVAT, MD fits within the Physical Medicine & Rehabilitation Physician landscape nationally.

15,306
Physical Medicine & Rehabilitation Physician Providers in US
54
States with Physical Medicine & Rehabilitation Physician
781
Avg Claims per Provider

PRISCILLA MIESES LLAVAT, MD's 432 claims are below the specialty average of 781.

Nearby Physical Medicine & Rehabilitation Physician Providers in Puerto Rico

Other clinicians with the same primary specialty enrolled in Puerto Rico, drawn from the same CMS NPPES roster as MIESES LLAVAT.

Compare Physical Medicine & Rehabilitation Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is PRISCILLA MIESES LLAVAT, MD's specialty?
PRISCILLA MIESES LLAVAT, MD specializes in Physical Medicine & Rehabilitation Physician and practices in SAN JUAN, Puerto Rico. Credentials: MD.
How much does PRISCILLA MIESES LLAVAT, MD prescribe under Medicare Part D?
In 2023, PRISCILLA MIESES LLAVAT, MD wrote 432 Medicare Part D claims totaling $7K in drug costs for 179 beneficiaries.
Where is PRISCILLA MIESES LLAVAT, MD located?
PRISCILLA MIESES LLAVAT, MD is located at ASHFORD MEDICAL CTR, SAN JUAN, PR, 00907. Phone: (787) 722-3955.
What is PRISCILLA MIESES LLAVAT, MD's NPI number?
PRISCILLA MIESES LLAVAT, MD's National Provider Identifier (NPI) is 1073580379, issued on 03/06/2006.
Does PRISCILLA MIESES LLAVAT, MD prescribe more brand-name or generic drugs?
PRISCILLA MIESES LLAVAT, MD's prescribing is 3% brand-name and 97% generic drugs by claim count, with $1K in brand drug costs.
How many Physical Medicine & Rehabilitation Physician providers are there in the US?
There are 15,306 Physical Medicine & Rehabilitation Physician providers across 54 states in the US. The average Physical Medicine & Rehabilitation Physician provider writes 781 Medicare Part D claims per year.
What drugs does PRISCILLA MIESES LLAVAT, MD prescribe most often?
Based on 2023 Medicare Part D data, PRISCILLA MIESES LLAVAT, MD's most frequently prescribed drugs include Gabapentin, Diclofenac Potassium, Meloxicam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does PRISCILLA MIESES LLAVAT, MD accept Medicare?
PRISCILLA MIESES LLAVAT, MD appears in CMS Medicare data with 432 Part D claims and 179 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify PRISCILLA MIESES LLAVAT, MD's credentials?
PRISCILLA MIESES LLAVAT, MD's NPI is 1073580379 with credentials MD. 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