2026 NPPES data Internal Medicine Physician NPI 1043663826 M.D.
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Juliet Yirerong, M.D.

Internal Medicine Physician in Bridgeport, Connecticut. 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
840
Medicare Part D claims · 174 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
80%
generic claims · 20% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
94.2/100
▲ 11 pts above national avg 83.1 · [object Object]
Industry payments
$2.3K
94 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

Juliet Yirerong, M.D. reported a CMS MIPS final score of 94.2/100 — above the 83.1 national average — and filed 840 Medicare Part D claims in 2023.

94.2/100
MIPS score · +11 vs avg
840
Part D claims, 2023
80%
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.

Juliet Yirerong, M.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

94 Top 25% higher than 75% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored 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.

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

Board certification likely (heuristic — not verified)

Juliet Yirerong, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations — 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 Juliet Yirerong, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 07/18/2016

NPI 1043663826

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

840 69% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

MIPS final score

94.2/100 11.1 pts vs avg

Exceptional band

vs 83.1 national avg

Specialty distribution in Connecticut

How Internal Medicine Physician compares to other specialties among Connecticut providers

Connecticut providers

Internal Medicine Physician share within Connecticut

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

Medicare quality performance — MIPS

Juliet Yirerong, M.D.'s 2023 MIPS final score plotted against the Internal Medicine Physician national average

High performer (top quartile)
MIPS Final Score
94.2/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Internal Medicine Physician) — 94.2/100 vs national avg 83.1

0%100%National avg83%94.2%
MIPS final score (Internal Medicine Physician) — 94.2/100 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).

Juliet Yirerong, M.D. appears in the CMS NPPES registry as a Internal Medicine Physician provider holding M.D. credentials at 439 MILL HILL AVE, Bridgeport, CT, 06610, with a listed phone of (203) 334-2100. NPI 1043663826 was issued on 07/18/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Yirerong 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 840 prescription claims written by this provider, covering 174 Medicare beneficiaries and totaling roughly $270K in drug spend, split 20% brand-name and 80% 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 94.2/100 for the 2023 performance year (Quality 81.9), compared with the national average of 83.1.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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

439 MILL HILL AVE
Bridgeport, CT 06610

Provider Details

NPI 1043663826
Specialty Internal Medicine Physician
Credentials M.D.
Gender Female
NPI Issued 07/18/2016

CMS Quality Score (MIPS)

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

94.1777
Final Score
Avg: 83.1
81.9442
Quality
99.3986
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where Juliet Yirerong, 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.

Bridgeport Hospital
★★★★☆ 4/5
Bridgeport, CT
Acute Care Hospitals
CMS CCN: 070010
Advanced Cardiovascular Specialists PC
Bridgeport, CT

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

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Juliet Yirerong, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$2.3K

Largest payer

AstraZeneca Pharmaceuticals LP

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Typical

Juliet Yirerong, M.D. — brand share 20.0%
Specialty average (est.)

20% brand-name claims vs 80% generic, on 840 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.

840
Total Claims
$270K
Total Drug Cost
174
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,898
Total Day Supply
56,160
Brand vs Generic
20% brand / 80% generic
Brand Drug Cost
$253K
Generic Drug Cost
$17K

Patient Demographics

Average Patient Age
72.4 years
Avg HCC Risk Score
1.72
Gender Split
49% female / 51% male
Age Distribution
<65: 22, 65-74: 88, 75-84: 39, 85+: 25

Top Prescribed Drugs (Medicare Part D)

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

What Juliet Yirerong, M.D. 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
Carvedilol
84
Amlodipine Besylate
73
Eliquis
Apixaban
67
Atorvastatin Calcium
65
Metoprolol Succinate
65
Furosemide
55
Diltiazem 24hr Er (Cd)
Diltiazem Hcl
32
Rosuvastatin Calcium
32
Entresto
Sacubitril/Valsartan
30
Metoprolol Tartrate
29

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

Internal Medicine Physician Overview

How Juliet Yirerong, M.D. fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

Juliet Yirerong, M.D.'s 840 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Connecticut

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

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

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry — providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Connecticut medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Internal Medicine Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only — they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Juliet Yirerong, M.D.'s specialty?
Juliet Yirerong, M.D. specializes in Internal Medicine Physician and practices in Bridgeport, Connecticut. Credentials: M.D..
How much does Juliet Yirerong, M.D. prescribe under Medicare Part D?
In 2023, Juliet Yirerong, M.D. wrote 840 Medicare Part D claims totaling $270K in drug costs for 174 beneficiaries.
What is Juliet Yirerong, M.D.'s Medicare quality score?
Juliet Yirerong, M.D. has a CMS MIPS Final Score of 94.2/100 (Quality: 81.9). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Juliet Yirerong, M.D. located?
Juliet Yirerong, M.D. is located at 439 MILL HILL AVE, Bridgeport, CT, 06610. Phone: (203) 334-2100.
What is Juliet Yirerong, M.D.'s NPI number?
Juliet Yirerong, M.D.'s National Provider Identifier (NPI) is 1043663826, issued on 07/18/2016.
Does Juliet Yirerong, M.D. prescribe more brand-name or generic drugs?
Juliet Yirerong, M.D.'s prescribing is 20% brand-name and 80% generic drugs by claim count, with $253K in brand drug costs.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Juliet Yirerong, M.D. prescribe most often?
Based on 2023 Medicare Part D data, Juliet Yirerong, M.D.'s most frequently prescribed drugs include Carvedilol, Amlodipine Besylate, Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Juliet Yirerong, M.D. accept Medicare?
Juliet Yirerong, M.D. appears in CMS Medicare data with 840 Part D claims and 174 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Juliet Yirerong, M.D.'s credentials?
Juliet Yirerong, M.D.'s NPI is 1043663826 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