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2026 NPPES data Critical Care Medicine (Internal Medicine) Physician NPI 1265575138 M.D.
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Yun Shim, M.D.

Critical Care Medicine (Internal Medicine) Physician in New York, New York.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,916 in Critical Care Medicine (Internal Medicine) Physician, 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
739
Medicare Part D claims · 111 beneficiaries · Critical Care Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
41%
generic claims · 59% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
79.4/100
▼ 4 pts below national avg 83.5 · Above neutral
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Yun Shim, M.D. reported a CMS MIPS final score of 79.4/100 - below the 83.5 national average - and filed 739 Medicare Part D claims in 2024.

79.4/100
MIPS score · -4 vs avg
739
Part D claims, 2024
41%
generic prescribing
Likely
board-certified (heuristic)

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 Yun Shim, M.D.

Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1265575138), first enumerated 02/14/2007.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 739 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    CMS quality reporting (MIPS)

    Reported a CMS MIPS final score of 79.4/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • Reported

    Board certification signal

    Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.

    Source: NUCC taxonomy + CMS participation heuristic

  • Reported

    Hospital affiliations

    1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.

    Source: CMS Care Compare

  • State context

    State board disciplinary context

    New York statewide board action statistics are published annually — these figures describe aggregate state activity, not Yun Shim, M.D.'s individual license status. Verify directly with the state medical board.

    Source: NYSBPMC annual report 2023

  • 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 1265575138 · Critical Care Medicine (Internal Medicine) Physician

NPI-10 · ENUM-MID · TAX-MID · MIPS-BELOW · RX-LIGHT · BOOK-LIGHT · PHOTO-FINISH

  • NPI-10 1265575138
  • ENUM-MID 2007
  • TAX-MID 7K Critical Care
  • MIPS-BELOW 79.4/100
  • RX-LIGHT 739
  • BOOK-LIGHT 582 in New York
  • PHOTO-FINISH Andrew Barros · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Yun Shim, M.D.'s MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

79 ≥ 26th percentile 26% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). This entry sits in this band. 80–90: 129,887 measured providers (29%). Above this entry. 90+: 189,403 measured providers (42%). Above this entry. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured providers. 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 whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Yun Shim, M.D. sits

This provider among critical care medicine (internal medicine) physician peers

Across the 1,548 critical care medicine (internal medicine) physician providers who report both Medicare Part D prescribing and a MIPS quality score, Yun Shim, M.D. writes more Part D claims than 53% of them and scores higher on MIPS quality than 26% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100024.448.873.297.7Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 23Yun Shim, M.D., Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 26
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one critical care medicine (internal medicine) physician peer from a representative sample of 60; the gold marker is Yun Shim, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Yun Shim, 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).

What does the federal data show about Yun Shim, M.D.?

Near national average

NPI registry status

Active

Issued 02/14/2007

NPI 1265575138

Primary specialty

Critical Care Medicine (Internal Medicine) Physician

Mid-sized

6,916 US NPIs in this specialty

Medicare Part D claims

739 33% vs specialty avg

2024 prescription claims

Specialty avg: 1,103

MIPS final score

79.4/100 4.1 pts vs avg

Above neutral band

vs 83.5 national avg

Specialty distribution in New York

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

New York providers
Student in an Organized Heal…8%Registered Nurse5.2%Clinical Social Worker4.9%Social Worker4.5%Speech-Language Pathologist4.5%Licensed Practical Nurse4.3%Critical Care Medicine (Inte…0.1%
Largest specialties in New York (% of in-state providers)

Medicare quality performance, MIPS

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

Near national average
MIPS Final Score
79.4/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%79.4%
MIPS final score (Critical Care Medicine (Internal Medicine) Physician) - 79.4/100 vs national avg 83.5
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

425 E 61ST ST
New York, NY 10065
(646) 962-2323

Provider Details

NPI 1265575138
Specialty Critical Care Medicine (Internal Medicine) Physician
Credentials M.D.
Gender Male
NPI Issued 02/14/2007

CMS Quality Score (MIPS)

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

79.3949
Final Score
Measured-score avg: 83.5
73.6607
Quality
57.6556
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Yun Shim, 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.

University OF Virginia Physicians Group
Charlottesville, VA

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 - New York NYSBPMC 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 ~100K New York medical licensees in 2023 - they are NOT specific to Yun Shim, M.D.. To verify Yun Shim, M.D.'s current license status, search the NYSBPMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

312
Total board actions, New York 2023
Across 302 cases
3.12
Actions per 1,000 licensees
New York statewide rate
probation
Most common action type
89 cases

NYSBPMC 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 New York disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Brand-heavy

Yun Shim, M.D. - brand share 59.0%
Critical Care Medicine (Internal Medicine) Physician average

59% brand-name claims vs 41% generic, on 739 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.

739
Total Claims
$340K
Total Drug Cost
111
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,197
Total Day Supply
32,257
Brand vs Generic
59% brand / 41% generic
Brand Drug Cost
$330K
Generic Drug Cost
$10K
Antibiotic Claims
59

Patient Demographics

Average Patient Age
71.4 years
Avg HCC Risk Score
1.95
Gender Split
54% female / 46% male
Age Distribution
<65: 20, 65-74: 54, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.

What Yun Shim, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2024

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2024
Drug Claims
Albuterol Sulfate Hfa
Albuterol Sulfate
88
Trelegy Ellipta
Fluticasone/Umeclidin/Vilanter
71
Prednisone
 68
Anoro Ellipta
Umeclidinium Brm/Vilanterol Tr
57
Breo Ellipta
Fluticasone/Vilanterol
52
Roflumilast
 40
Montelukast Sodium
 33
Azithromycin
 28
Spiriva Respimat
Tiotropium Bromide
23
Ventolin Hfa
Albuterol Sulfate
23

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

More Critical Care Medicine (Internal Medicine) Physician in NY → All providers in New York → Compare specialties →

Critical Care Medicine (Internal Medicine) Physician Overview

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

6,916
Critical Care Medicine (Internal Medicine) Physician Providers in US
53
States with Critical Care Medicine (Internal Medicine) Physician
1,103
Avg Claims per Provider

Yun Shim, M.D.'s 739 claims are below the specialty average of 1,103.

Nationwide Critical Care Medicine (Internal Medicine) Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Shim, both outside New York so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (79.4 here).

Andrew Barros 79.4 VA Jonathan Curley 79.4 TX Eric Davis 79.4 VA John Kim 79.4 VA

Same NPPES enumeration year (2007)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Amisha Barochia Baltimore, MD Robert Taylor Saint Louis, MO Adeel Abbasi Providence, RI My Charllins Vilsaint San Antonio, TX

Nearby Critical Care Medicine (Internal Medicine) Physician Providers in New York

Other clinicians with the same primary specialty enrolled in New York, drawn from the same CMS NPPES roster as Shim.

One of 582 Critical Care Medicine (Internal Medicine) Physician providers enrolled in New York, 5 are shown here.

Dr. Zara Abbas
DO
New York, NY
Dr. Ami Abraham
DO
Bronx, NY
Dr. Stanley Abraham
D.O.
Yorktown Heights, NY
Dr. Russell Acevedo
MD
Syracuse, NY
Dr. Muhammad Ilyas Achakzai
MD
Buffalo, NY

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

Frequently Asked Questions

What is Yun Shim, M.D.'s specialty? ▼
Yun Shim, M.D. specializes in Critical Care Medicine (Internal Medicine) Physician and practices in New York, New York. Credentials: M.D..
How much does Yun Shim, M.D. prescribe under Medicare Part D? ▼
In 2024, Yun Shim, M.D. wrote 739 Medicare Part D claims totaling $340K in drug costs for 111 beneficiaries.
What is Yun Shim, M.D.'s Medicare quality score? ▼
Yun Shim, M.D. has a CMS MIPS Final Score of 79.4/100 (Quality: 73.7, Cost: 57.7). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Yun Shim, M.D. located? ▼
Yun Shim, M.D. is located at 425 E 61ST ST, New York, NY, 10065. Phone: (646) 962-2323.
What is Yun Shim, M.D.'s NPI number? ▼
Yun Shim, M.D.'s National Provider Identifier (NPI) is 1265575138, issued on 02/14/2007.
Does Yun Shim, M.D. prescribe more brand-name or generic drugs? ▼
Yun Shim, M.D.'s prescribing is 59% brand-name and 41% generic drugs by claim count, with $330K in brand drug costs.
How many Critical Care Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 6,916 Critical Care Medicine (Internal Medicine) Physician providers across 53 states in the US. The average Critical Care Medicine (Internal Medicine) Physician provider writes 1,103 Medicare Part D claims per year.
What drugs does Yun Shim, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Yun Shim, M.D.'s most frequently prescribed drugs include Albuterol Sulfate Hfa, Trelegy Ellipta, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Yun Shim, M.D. accept Medicare? ▼
Yun Shim, M.D. appears in CMS Medicare data with 739 Part D claims and 111 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Yun Shim, M.D.'s credentials? ▼
Yun Shim, M.D.'s NPI is 1265575138 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.
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 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

Compiled from official public sources by the editorial process.

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.