2026 NPPES data Cardiovascular Disease Physician NPI 1326086604 MD
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JEFFREY CHUNG, MD

Cardiovascular Disease Physician in MURRIETA, California. 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 · 371 beneficiaries · Cardiovascular Disease Physician avg: 3K
Generic prescribing
80%
generic claims · 20% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
74.8549/100
▼ 8 pts below national avg 83.1 · [object Object]
Industry payments
$1.2K
50 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

JEFFREY CHUNG, MD reported a CMS MIPS final score of 74.8549/100 — below the 83.1 national average — and filed 2,034 Medicare Part D claims in 2023.

74.8549/100
MIPS score · -8 vs avg
2K
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.

JEFFREY CHUNG, MD's MIPS score vs every scored U.S. clinician

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

75 12th percentile higher than 12% 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%). This entry sits in this band. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. 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)

JEFFREY CHUNG, MD 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 JEFFREY CHUNG, MD?

Below national average

NPI registry status

Active

Issued 06/02/2006

NPI 1326086604

Primary specialty

Cardiovascular Disease Physician

Mid-sized

24,795 US NPIs in this specialty

Medicare Part D claims

2,034 33% vs specialty avg

2023 prescription claims

Specialty avg: 3,033

MIPS final score

74.8549/100 8.245099999999994% pts

Mid-tier band

vs 83.1 national avg

Specialty distribution in California

How Cardiovascular Disease Physician compares to other specialties among California providers

California providers

Cardiovascular Disease Physician share within California

1. Cardiovascular Disease Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Cardiovascular Disease Physician share within California

Medicare quality performance — MIPS

JEFFREY CHUNG, MD's 2023 MIPS final score plotted against the Cardiovascular Disease Physician national average

Below national average
MIPS Final Score
74.8549/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Cardiovascular Disease Physician) — 74.8549/100 vs national avg 83.1

0%100%National avg83%74.9%
MIPS final score (Cardiovascular Disease Physician) — 74.8549/100 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).

JEFFREY CHUNG, MD appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider holding MD credentials at 25470 MEDICAL CENTER DR STE 105, MURRIETA, CA, 92562, with a listed phone of (951) 698-4600. NPI 1326086604 was issued on 06/02/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHUNG 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 2,034 prescription claims written by this provider, covering 371 Medicare beneficiaries and totaling roughly $520K 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 74.8549/100 for the 2023 performance year (Quality 70.4767, Cost 55.5473), compared with the national average of 83.1.

Cardiovascular Disease Physician is a mid-sized specialty nationwide, with 24,795 enrolled providers across 54 states and an average of 3,033 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

25470 MEDICAL CENTER DR STE 105
MURRIETA, CA 92562

Provider Details

NPI 1326086604
Specialty Cardiovascular Disease Physician
Credentials MD
Gender Male
NPI Issued 06/02/2006

CMS Quality Score (MIPS)

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

74.8549
Final Score
Avg: 83.1
70.4767
Quality
55.5473
Cost

Reporting: Group practice

Hospital and facility affiliations

Facilities where JEFFREY CHUNG, MD 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.

TEMECULA VALLEY CARDIOLOGY MEDICAL GROUP INC
MURRIETA, CA

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 JEFFREY CHUNG, MD. Source: openpaymentsdata.cms.gov.

Total received

$1.2K

Largest payer

Impulse Dynamics (USA) Inc.

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.

License & disciplinary context — California MBC 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 ~150K California medical licensees in 2023 — they are NOT specific to JEFFREY CHUNG, MD. To verify JEFFREY CHUNG, MD's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC 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 California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

JEFFREY CHUNG, MD — brand share 20.0%
Specialty average (est.)

20% brand-name claims vs 80% generic, on 2,034 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.

2,034
Total Claims
$520K
Total Drug Cost
371
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
5,341
Total Day Supply
158,943
Brand vs Generic
20% brand / 80% generic
Brand Drug Cost
$473K
Generic Drug Cost
$47K

Patient Demographics

Average Patient Age
76.8 years
Avg HCC Risk Score
1.30
Gender Split
52% female / 48% male

Top Prescribed Drugs (Medicare Part D)

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

What JEFFREY CHUNG, 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
Atorvastatin Calcium
189
Losartan Potassium
174
Metoprolol Succinate
150
Eliquis
Apixaban
133
Amlodipine Besylate
119
Hydrochlorothiazide
113
Hydralazine Hcl
92
Rosuvastatin Calcium
82
Carvedilol
81
Lisinopril
79

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

Cardiovascular Disease Physician Overview

How JEFFREY CHUNG, MD fits within the Cardiovascular Disease Physician landscape nationally.

24,795
Cardiovascular Disease Physician Providers in US
54
States with Cardiovascular Disease Physician
3,033
Avg Claims per Provider

JEFFREY CHUNG, MD's 2,034 claims are below the specialty average of 3,033.

Nearby Cardiovascular Disease Physician Providers in California

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

Compare Cardiovascular Disease Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JEFFREY CHUNG, MD's specialty?
JEFFREY CHUNG, MD specializes in Cardiovascular Disease Physician and practices in MURRIETA, California. Credentials: MD.
How much does JEFFREY CHUNG, MD prescribe under Medicare Part D?
In 2023, JEFFREY CHUNG, MD wrote 2,034 Medicare Part D claims totaling $520K in drug costs for 371 beneficiaries.
What is JEFFREY CHUNG, MD's Medicare quality score?
JEFFREY CHUNG, MD has a CMS MIPS Final Score of 74.8549/100 (Quality: 70.4767, Cost: 55.5473). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is JEFFREY CHUNG, MD located?
JEFFREY CHUNG, MD is located at 25470 MEDICAL CENTER DR STE 105, MURRIETA, CA, 92562. Phone: (951) 698-4600.
What is JEFFREY CHUNG, MD's NPI number?
JEFFREY CHUNG, MD's National Provider Identifier (NPI) is 1326086604, issued on 06/02/2006.
Does JEFFREY CHUNG, MD prescribe more brand-name or generic drugs?
JEFFREY CHUNG, MD's prescribing is 20% brand-name and 80% generic drugs by claim count, with $473K in brand drug costs.
How many Cardiovascular Disease Physician providers are there in the US?
There are 24,795 Cardiovascular Disease Physician providers across 54 states in the US. The average Cardiovascular Disease Physician provider writes 3,033 Medicare Part D claims per year.
What drugs does JEFFREY CHUNG, MD prescribe most often?
Based on 2023 Medicare Part D data, JEFFREY CHUNG, MD's most frequently prescribed drugs include Atorvastatin Calcium, Losartan Potassium, Metoprolol Succinate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JEFFREY CHUNG, MD accept Medicare?
JEFFREY CHUNG, MD appears in CMS Medicare data with 2,034 Part D claims and 371 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JEFFREY CHUNG, MD's credentials?
JEFFREY CHUNG, MD's NPI is 1326086604 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.
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