2026 NPPES data Hospitalist Physician NPI 1043250012 MD
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LUIS RAMIREZ, MD

Hospitalist Physician in CAROLINA, 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
2K
Medicare Part D claims · 137 beneficiaries · Hospitalist Physician avg: 888

What the federal data shows

LUIS RAMIREZ, MD filed 1,891 Medicare Part D claims in 2023 as a Hospitalist Physician in CAROLINA, Puerto Rico.

2K
Part D claims, 2023

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.

LUIS RAMIREZ, MD's Medicare Part D volume vs every U.S. prescriber

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

1,891 Top 17% higher than 83% 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%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). This entry sits in this band. 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)

LUIS RAMIREZ, 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 LUIS RAMIREZ, MD?

Quality data not reported

NPI registry status

Active

Issued 06/07/2006

NPI 1043250012

Primary specialty

Hospitalist Physician

Mid-sized

16,825 US NPIs in this specialty

Medicare Part D claims

1,891 113% vs specialty avg

2023 prescription claims

Specialty avg: 888

Specialty distribution in Puerto Rico

How Hospitalist Physician compares to other specialties among Puerto Rico providers

Puerto Rico providers

Hospitalist Physician share within Puerto Rico

1. Hospitalist Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Hospitalist Physician share within Puerto Rico

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Hospitalist 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).

LUIS RAMIREZ, MD appears in the CMS NPPES registry as a Hospitalist Physician provider holding MD credentials at FERNANDEZ JUNCOS CAROLINA, CAROLINA, PR, 00985, with a listed phone of (787) 641-0774. NPI 1043250012 was issued on 06/07/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what RAMIREZ 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 1,891 prescription claims written by this provider, covering 137 Medicare beneficiaries and totaling roughly $26K in drug spend. 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.

Hospitalist Physician is a mid-sized specialty nationwide, with 16,825 enrolled providers across 54 states and an average of 888 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

FERNANDEZ JUNCOS CAROLINA
CAROLINA, PR 00985

Provider Details

NPI 1043250012
Specialty Hospitalist Physician
Credentials MD
Gender Male
NPI Issued 06/07/2006

Medicare Part D Prescribing Data

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

1,891
Total Claims
$26K
Total Drug Cost
137
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,929
Total Day Supply
57,250
Generic Drug Cost
$22K

Patient Demographics

Average Patient Age
61.9 years
Avg HCC Risk Score
1.60
Gender Split
55% female / 45% male
Age Distribution
<65: 71, 65-74: 60, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What LUIS RAMIREZ, 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
Clonazepam
255
Temazepam
237
Sertraline Hcl
171
Lorazepam
139
Risperidone
122
Trazodone Hcl
94
Mirtazapine
85
Escitalopram Oxalate
60
Divalproex Sodium
52
Fluoxetine Hcl
50

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

Hospitalist Physician Overview

How LUIS RAMIREZ, MD fits within the Hospitalist Physician landscape nationally.

16,825
Hospitalist Physician Providers in US
54
States with Hospitalist Physician
888
Avg Claims per Provider

LUIS RAMIREZ, MD's 1,891 claims are above the specialty average of 888.

Nearby Hospitalist Physician Providers in Puerto Rico

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

Compare Hospitalist Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is LUIS RAMIREZ, MD's specialty?
LUIS RAMIREZ, MD specializes in Hospitalist Physician and practices in CAROLINA, Puerto Rico. Credentials: MD.
How much does LUIS RAMIREZ, MD prescribe under Medicare Part D?
In 2023, LUIS RAMIREZ, MD wrote 1,891 Medicare Part D claims totaling $26K in drug costs for 137 beneficiaries.
Where is LUIS RAMIREZ, MD located?
LUIS RAMIREZ, MD is located at FERNANDEZ JUNCOS CAROLINA, CAROLINA, PR, 00985. Phone: (787) 641-0774.
What is LUIS RAMIREZ, MD's NPI number?
LUIS RAMIREZ, MD's National Provider Identifier (NPI) is 1043250012, issued on 06/07/2006.
How many Hospitalist Physician providers are there in the US?
There are 16,825 Hospitalist Physician providers across 54 states in the US. The average Hospitalist Physician provider writes 888 Medicare Part D claims per year.
What drugs does LUIS RAMIREZ, MD prescribe most often?
Based on 2023 Medicare Part D data, LUIS RAMIREZ, MD'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 LUIS RAMIREZ, MD accept Medicare?
LUIS RAMIREZ, MD appears in CMS Medicare data with 1,891 Part D claims and 137 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LUIS RAMIREZ, MD's credentials?
LUIS RAMIREZ, MD's NPI is 1043250012 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