2026 NPPES data Critical Care Medicine (Internal Medicine) Physician NPI 1528324613 M.D.
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KATIE ALONSO, M.D.

Critical Care Medicine (Internal Medicine) Physician in STUART, Florida. 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
542
Medicare Part D claims · 125 beneficiaries · Critical Care Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
43%
generic claims · 57% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
89.8973/100
▲ 7 pts above national avg 83.1 · [object Object]
What the federal data reveals: KATIE ALONSO, M.D. is a Critical Care Medicine (Internal Medicine) Physician ([object Object]) practicing in STUART, Florida with a Medicare Part D prescribing footprint of 542 claims across 125 beneficiaries — 57% brand-name prescribing . Their CMS MIPS Final Score of 89.8973/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: KATIE ALONSO, M.D. reported a CMS MIPS final score of 89.8973 out of 100, above the 83.1 national average, and filed 542 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

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

KATIE ALONSO, M.D. at a glance

High performer (top quartile)

NPI registry status

Active

Issued 04/03/2012

NPI 1528324613

Primary specialty

Critical Care Medicine (Internal Medicine) Physician

Mid-sized

6,631 US NPIs in this specialty

Medicare Part D claims

542 49% vs specialty avg

2023 prescription claims

Specialty avg: 1,069

MIPS final score

89.8973/100 6.797300000000007% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Florida

How Critical Care Medicine (Internal Medicine) Physician compares to other specialties among Florida providers

Florida providers

Critical Care Medicine (Internal Medicine) Physician share within Florida

1. Critical Care Medicine (Internal Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Critical Care Medicine (Internal Medicine) Physician share within Florida

Medicare quality performance — MIPS

KATIE ALONSO, M.D.'s 2023 MIPS final score plotted against the Critical Care Medicine (Internal Medicine) Physician national average

High performer (top quartile)
MIPS Final Score
89.8973/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Critical Care Medicine (Internal Medicine) Physician) — 89.8973/100 vs national avg 83.1

0%100%National avg83%89.9%
MIPS final score (Critical Care Medicine (Internal Medicine) Physician) — 89.8973/100 vs national avg 83.1

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).

KATIE ALONSO, M.D. is a Critical Care Medicine (Internal Medicine) Physician provider practicing in STUART, Florida, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1528324613. 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.

KATIE ALONSO, M.D. appears in the CMS NPPES registry as a Critical Care Medicine (Internal Medicine) Physician provider holding M.D. credentials at 2392 SE OCEAN BLVD, STUART, FL, 34996, with a listed phone of (772) 223-4978. NPI 1528324613 was issued on 04/03/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ALONSO 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 542 prescription claims written by this provider, covering 125 Medicare beneficiaries and totaling roughly $211K in drug spend, split 57% brand-name and 43% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 89.8973/100 for the 2023 performance year (Quality 75.7557), compared with the national average of 83.1.

Critical Care Medicine (Internal Medicine) Physician is a mid-sized specialty nationwide, with 6,631 enrolled providers across 53 states and an average of 1,069 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

2392 SE OCEAN BLVD
STUART, FL 34996

Provider Details

NPI 1528324613
Specialty Critical Care Medicine (Internal Medicine) Physician
Credentials M.D.
Gender Female
NPI Issued 04/03/2012

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

89.8973
Final Score
Avg: 83.1
75.7557
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where KATIE ALONSO, 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.

MARTIN MEMORIAL MEDICAL CENTER INC
PORT SAINT LUCIE, FL

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context — Florida FLDOH 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~75K Florida medical licensees in 2023 — they are NOT specific to KATIE ALONSO, M.D.. To verify KATIE ALONSO, M.D.'s current license status, search the FLDOH public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

480
Total board actions, Florida 2023
Across 467 cases
6.40
Actions per 1,000 licensees
Florida statewide rate
monetary fine
Most common action type
138 cases

FLDOH publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Florida disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Brand-heavy

KATIE ALONSO, M.D. — brand share 57.0%
Specialty average (est.)

57% brand-name claims vs 43% generic, on 542 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.

542
Total Claims
$211K
Total Drug Cost
125
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
862
Total Day Supply
23,877
Brand vs Generic
57% brand / 43% generic
Brand Drug Cost
$205K
Antibiotic Claims
49

Patient Demographics

Average Patient Age
75.5 years
Avg HCC Risk Score
1.78
Gender Split
62% female / 38% 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
Albuterol Sulfate Hfa
Albuterol Sulfate
113
Trelegy Ellipta
Fluticasone/Umeclidin/Vilanter
72
Montelukast Sodium
48
Breo Ellipta
Fluticasone/Vilanterol
44
Prednisone
35
Anoro Ellipta
Umeclidinium Brm/Vilanterol Tr
31
Doxycycline Hyclate
25
Azithromycin
23
Advair Diskus
Fluticasone Propion/Salmeterol
17
Fluticasone Propionate
17

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

Critical Care Medicine (Internal Medicine) Physician Overview

How KATIE ALONSO, M.D. fits within the Critical Care Medicine (Internal Medicine) Physician landscape nationally.

6,631
Critical Care Medicine (Internal Medicine) Physician Providers in US
53
States with Critical Care Medicine (Internal Medicine) Physician
1,069
Avg Claims per Provider

KATIE ALONSO, M.D.'s 542 claims are below the specialty average of 1,069.

Nearby Critical Care Medicine (Internal Medicine) Physician Providers in Florida

Other clinicians with the same primary specialty enrolled in Florida, drawn from the same CMS NPPES roster as ALONSO.

Compare Critical Care Medicine (Internal Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is KATIE ALONSO, M.D.'s specialty?
KATIE ALONSO, M.D. specializes in Critical Care Medicine (Internal Medicine) Physician and practices in STUART, Florida. Credentials: M.D..
How much does KATIE ALONSO, M.D. prescribe under Medicare Part D?
In 2023, KATIE ALONSO, M.D. wrote 542 Medicare Part D claims totaling $211K in drug costs for 125 beneficiaries.
What is KATIE ALONSO, M.D.'s Medicare quality score?
KATIE ALONSO, M.D. has a CMS MIPS Final Score of 89.8973/100 (Quality: 75.7557). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is KATIE ALONSO, M.D. located?
KATIE ALONSO, M.D. is located at 2392 SE OCEAN BLVD, STUART, FL, 34996. Phone: (772) 223-4978.
What is KATIE ALONSO, M.D.'s NPI number?
KATIE ALONSO, M.D.'s National Provider Identifier (NPI) is 1528324613, issued on 04/03/2012.
Does KATIE ALONSO, M.D. prescribe more brand-name or generic drugs?
KATIE ALONSO, M.D.'s prescribing is 57% brand-name and 43% generic drugs by claim count, with $205K in brand drug costs.
How many Critical Care Medicine (Internal Medicine) Physician providers are there in the US?
There are 6,631 Critical Care Medicine (Internal Medicine) Physician providers across 53 states in the US. The average Critical Care Medicine (Internal Medicine) Physician provider writes 1,069 Medicare Part D claims per year.
What drugs does KATIE ALONSO, M.D. prescribe most often?
Based on 2023 Medicare Part D data, KATIE ALONSO, M.D.'s most frequently prescribed drugs include Albuterol Sulfate Hfa, Trelegy Ellipta, Montelukast Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KATIE ALONSO, M.D. accept Medicare?
KATIE ALONSO, M.D. appears in CMS Medicare data with 542 Part D claims and 125 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KATIE ALONSO, M.D.'s credentials?
KATIE ALONSO, M.D.'s NPI is 1528324613 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

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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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