2026 NPPES data Emergency Medicine Physician NPI 1235160953
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NORIS DIAZ

Emergency Medicine Physician in LAS PIEDRAS, 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
169
Medicare Part D claims · 112 beneficiaries · Emergency Medicine Physician avg: 352
What the federal data reveals: NORIS DIAZ is a Emergency Medicine Physician ([object Object]) practicing in LAS PIEDRAS, Puerto Rico with a Medicare Part D prescribing footprint of 169 claims across 112 beneficiaries .

What stands out: NORIS DIAZ filed 169 Medicare Part D claims in 2023 across LAS PIEDRAS, Puerto Rico. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

NORIS DIAZ practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

NORIS DIAZ at a glance

Quality data not reported

NPI registry status

Active

Issued 07/05/2006

NPI 1235160953

Primary specialty

Emergency Medicine Physician

High-volume

64,398 US NPIs in this specialty

Medicare Part D claims

169 52% vs specialty avg

2023 prescription claims

Specialty avg: 352

Specialty distribution in Puerto Rico

How Emergency Medicine Physician compares to other specialties among Puerto Rico providers

Puerto Rico providers

Emergency Medicine Physician share within Puerto Rico

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

Specialty board-certification context

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

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

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

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

NORIS DIAZ is a Emergency Medicine Physician provider practicing in LAS PIEDRAS, Puerto Rico, according to the CMS National Plan and Provider Enumeration System (NPPES). NPI: 1235160953. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

NORIS DIAZ appears in the CMS NPPES registry as a Emergency Medicine Physician provider at I68 CALLE 6, LAS PIEDRAS, PR, 00771, with a listed phone of (787) 360-8674. NPI 1235160953 was issued on 07/05/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DIAZ 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 169 prescription claims written by this provider, covering 112 Medicare beneficiaries and totaling roughly $1K 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.

Emergency Medicine Physician is a high-volume specialty nationwide, with 64,398 enrolled providers across 56 states and an average of 352 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

I68 CALLE 6
LAS PIEDRAS, PR 00771

Provider Details

NPI 1235160953
Specialty Emergency Medicine Physician
Gender Female
NPI Issued 07/05/2006

Hospital and facility affiliations

Facilities where NORIS DIAZ 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.

ER SPECIALIZED CARE LLC
HATO REY, 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).

Medicare Part D Prescribing Data

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

169
Total Claims
$1K
Total Drug Cost
112
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
172
Total Day Supply
1,370
Generic Drug Cost
$1K
Antibiotic Claims
82

Patient Demographics

Average Patient Age
72.6 years
Avg HCC Risk Score
1.90
Gender Split
64% female / 36% male
Age Distribution
<65: 19, 65-74: 34, 75-84: 45, 85+: 14

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Prednisone
21
Ciprofloxacin Hcl
20
Metronidazole
17
Azithromycin
16
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
11

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

Emergency Medicine Physician Overview

How NORIS DIAZ fits within the Emergency Medicine Physician landscape nationally.

64,398
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider

NORIS DIAZ's 169 claims are below the specialty average of 352.

Nearby Emergency Medicine Physician Providers in Puerto Rico

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

Compare Emergency Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is NORIS DIAZ's specialty?
NORIS DIAZ specializes in Emergency Medicine Physician and practices in LAS PIEDRAS, Puerto Rico.
How much does NORIS DIAZ prescribe under Medicare Part D?
In 2023, NORIS DIAZ wrote 169 Medicare Part D claims totaling $1K in drug costs for 112 beneficiaries.
Where is NORIS DIAZ located?
NORIS DIAZ is located at I68 CALLE 6, LAS PIEDRAS, PR, 00771. Phone: (787) 360-8674.
What is NORIS DIAZ's NPI number?
NORIS DIAZ's National Provider Identifier (NPI) is 1235160953, issued on 07/05/2006.
How many Emergency Medicine Physician providers are there in the US?
There are 64,398 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
What drugs does NORIS DIAZ prescribe most often?
Based on 2023 Medicare Part D data, NORIS DIAZ's most frequently prescribed drugs include Prednisone, Ciprofloxacin Hcl, Metronidazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NORIS DIAZ accept Medicare?
NORIS DIAZ appears in CMS Medicare data with 169 Part D claims and 112 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NORIS DIAZ's credentials?
NORIS DIAZ's NPI is 1235160953. 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