NPI registry status
Active
2026 NPPES data Specialist NPI 1801832159 M.D.
Verify on CMS → Juan Nunez, M.D.
Specialist in Carolina, 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 69,567 in Specialist, 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.
Prescribing volume
9K
Medicare Part D claims · 838 beneficiaries · Specialist avg: 2K
Generic prescribing
>99%
generic claims · <1% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Juan Nunez, M.D. filed 8,738 Medicare Part D claims in 2024 as a Specialist in Carolina, Puerto Rico, prescribing >99% generic.
- 9K
- Part D claims, 2024
- >99%
- generic prescribing
- ≥98th
- pct by Part D claim volume (lower-bound band)
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 Juan Nunez, M.D.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1801832159), first enumerated 06/22/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 8,738 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- 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 1801832159 · Specialist
NPI-10 · ENUM-LEGACY · TAX-MEGA · RX-MID · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1801832159
- ENUM-LEGACY 2006
- TAX-MEGA 70K Specialist
- RX-MID 8,738
- BOOK-LIGHT 709 in Puerto Rico
- PHOTO-ENUM Stephen Ellis · 2006
Juan Nunez, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
8,738 ≥ 98th percentile 98% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about Juan Nunez, M.D.?
Quality data not reportedPrimary specialty
Specialist
Medicare Part D claims
8,738 6× vs specialty avg
Specialty distribution in Puerto Rico
How Specialist 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 Specialist. 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 | 1801832159 |
|---|---|
| Specialty | Specialist |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 06/22/2006 |
Hospital and facility affiliations
Facilities where Juan Nunez, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Inspira Behavioral Care Corp
Humacao, PR
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Generic-heavy
Juan Nunez, M.D. - brand share 0.0%
Specialist average
<1% brand-name claims vs >99% generic, on 8,738 2024 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 2024.
8,738
Total Claims
$109K
Total Drug Cost
838
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 8,897.5
- Total Day Supply
- 265,553
- Brand vs Generic
- <1% brand / >99% generic
- Brand Drug Cost
- $13K
- Generic Drug Cost
- $96K
Patient Demographics
- Average Patient Age
- 63.1 years
- Avg HCC Risk Score
- 1.72
- Gender Split
- 58% female / 42% male
- Age Distribution
- <65: 407, 65-74: 306, 75-84: 105, 85+: 20
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Juan Nunez, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Clonazepam
Clonazepam
1,304 claims
- Temazepam
Temazepam
780 claims
- Sertraline Hcl
Sertraline Hcl
742 claims
- Trazodone Hcl
Trazodone Hcl
615 claims
- Risperidone
Risperidone
550 claims
- Lorazepam 480
Lorazepam
480 claims
- Fluoxetine Hcl 419
Fluoxetine Hcl
419 claims
- Quetiapine Fumarate 398
Quetiapine Fumarate
398 claims
| Drug | Claims |
|---|---|
| Clonazepam | 1,304 |
| Temazepam | 780 |
| Sertraline Hcl | 742 |
| Trazodone Hcl | 615 |
| Risperidone | 550 |
| Lorazepam | 480 |
| Fluoxetine Hcl | 419 |
| Quetiapine Fumarate | 398 |
| Zolpidem Tartrate | 327 |
| Mirtazapine | 320 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Specialist Overview
How Juan Nunez, M.D. fits within the Specialist landscape nationally.
69,567
Specialist Providers in US
55
States with Specialist
1,524
Avg Claims per Provider
Juan Nunez, M.D.'s 8,738 claims are above the specialty average of 1,524.
Nationwide Specialist peers with similar MIPS or enrollment year
Two federal-record peer sets for Nunez, both outside Puerto Rico so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Specialist Providers in Puerto Rico
Other clinicians with the same primary specialty enrolled in Puerto Rico, drawn from the same CMS NPPES roster as Nunez.
One of 709 Specialist providers enrolled in Puerto Rico, 5 are shown here.
Dr. Alberto Abreu
M.D.
Ponce, PR
Dr. Arlene Abreu Rivera
MD
Caguas, PR
Alberto Abreu-Rivera
M.D. FAMILY PHYSICIA
Arecibo, PR
Dr. Carmen Acantilado
M.D.
Bayamon, PR
Dr. Frank Acevedo
M.D.
Cayey, PR
Compare Specialist nationally: see state-by-state distribution →
Frequently Asked Questions
What is Juan Nunez, M.D.'s specialty? ▼
Juan Nunez, M.D. specializes in Specialist and practices in Carolina, Puerto Rico. Credentials: M.D..
How much does Juan Nunez, M.D. prescribe under Medicare Part D? ▼
In 2024, Juan Nunez, M.D. wrote 8,738 Medicare Part D claims totaling $109K in drug costs for 838 beneficiaries.
Where is Juan Nunez, M.D. located? ▼
Juan Nunez, M.D. is located at 3103 COND CONDESA DEL MAR, Carolina, PR, 00979. Phone: (787) 268-2894.
What is Juan Nunez, M.D.'s NPI number? ▼
Juan Nunez, M.D.'s National Provider Identifier (NPI) is 1801832159, issued on 06/22/2006.
Does Juan Nunez, M.D. prescribe more brand-name or generic drugs? ▼
Juan Nunez, M.D.'s prescribing is <1% brand-name and >99% generic drugs by claim count, with $13K in brand drug costs.
How many Specialist providers are there in the US? ▼
There are 69,567 Specialist providers across 55 states in the US. The average Specialist provider writes 1,524 Medicare Part D claims per year.
What drugs does Juan Nunez, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Juan Nunez, M.D.'s most frequently prescribed drugs include Clonazepam, Temazepam, Sertraline Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Juan Nunez, M.D. accept Medicare? ▼
Juan Nunez, M.D. appears in CMS Medicare data with 8,738 Part D claims and 838 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Juan Nunez, M.D.'s credentials? ▼
Juan Nunez, M.D.'s NPI is 1801832159 with credentials M.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
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.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2024). 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 August 2026 (NPPES) / 2024 (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 August 2026.