2026 NPPES data Infectious Disease Physician NPI 1598020968 M.D.
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MELISSA BARGER, M.D.

Infectious Disease Physician in VENTURA, 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
48
Medicare Part D claims · Infectious Disease Physician avg: 816
MIPS score
87.188/100
▲ 4 pts above national avg 83.1 · [object Object]

What the federal data shows

MELISSA BARGER, M.D. reported a CMS MIPS final score of 87.188/100 — above the 83.1 national average — and filed 48 Medicare Part D claims in 2023.

87.188/100
MIPS score · +4 vs avg
48
Part D claims, 2023
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.

MELISSA BARGER, 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

87 Top 46% higher than 54% 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%). This entry sits in this band. 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)

MELISSA BARGER, 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 MELISSA BARGER, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 07/11/2012

NPI 1598020968

Primary specialty

Infectious Disease Physician

Mid-sized

8,292 US NPIs in this specialty

Medicare Part D claims

48 94% vs specialty avg

2023 prescription claims

Specialty avg: 816

MIPS final score

87.188/100 4.088000000000008% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in California

How Infectious Disease Physician compares to other specialties among California providers

California providers

Infectious Disease Physician share within California

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

Medicare quality performance — MIPS

MELISSA BARGER, M.D.'s 2023 MIPS final score plotted against the Infectious Disease Physician national average

High performer (top quartile)
MIPS Final Score
87.188/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Infectious Disease Physician) — 87.188/100 vs national avg 83.1

0%100%National avg83%87.2%
MIPS final score (Infectious Disease Physician) — 87.188/100 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).

MELISSA BARGER, M.D. appears in the CMS NPPES registry as a Infectious Disease Physician provider holding M.D. credentials at 300 HILLMONT AVE STE 502, VENTURA, CA, 93003, with a listed phone of (805) 652-6222. NPI 1598020968 was issued on 07/11/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BARGER 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 48 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $3K 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 87.188/100 for the 2023 performance year (Quality 84.0953, Cost 56.5312), compared with the national average of 83.1.

Infectious Disease Physician is a mid-sized specialty nationwide, with 8,292 enrolled providers across 54 states and an average of 816 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

300 HILLMONT AVE STE 502
VENTURA, CA 93003

Provider Details

NPI 1598020968
Specialty Infectious Disease Physician
Credentials M.D.
Gender Female
NPI Issued 07/11/2012

CMS Quality Score (MIPS)

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

87.188
Final Score
Avg: 83.1
84.0953
Quality
56.5312
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where MELISSA BARGER, 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.

COUNTY OF VENTURA
VENTURA, 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).

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 MELISSA BARGER, M.D.. To verify MELISSA BARGER, M.D.'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.

Medicare Part D Prescribing Data

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

48
Total Claims
$3K
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
56
Total Day Supply
1,262
Generic Drug Cost
$3K
Antibiotic Claims
46

Patient Demographics

Average Patient Age
70.7 years
Avg HCC Risk Score
1.62

Top Prescribed Drugs (Medicare Part D)

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

What MELISSA BARGER, 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
Cefazolin Sodium
14
Doxycycline Hyclate
12
Nitrofurantoin
Nitrofurantoin Macrocrystal
11

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

Infectious Disease Physician Overview

How MELISSA BARGER, M.D. fits within the Infectious Disease Physician landscape nationally.

8,292
Infectious Disease Physician Providers in US
54
States with Infectious Disease Physician
816
Avg Claims per Provider

MELISSA BARGER, M.D.'s 48 claims are below the specialty average of 816.

Nearby Infectious Disease Physician Providers in California

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

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

Frequently Asked Questions

What is MELISSA BARGER, M.D.'s specialty?
MELISSA BARGER, M.D. specializes in Infectious Disease Physician and practices in VENTURA, California. Credentials: M.D..
How much does MELISSA BARGER, M.D. prescribe under Medicare Part D?
In 2023, MELISSA BARGER, M.D. wrote 48 Medicare Part D claims totaling $3K in drug costs for N/A beneficiaries.
What is MELISSA BARGER, M.D.'s Medicare quality score?
MELISSA BARGER, M.D. has a CMS MIPS Final Score of 87.188/100 (Quality: 84.0953, Cost: 56.5312). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is MELISSA BARGER, M.D. located?
MELISSA BARGER, M.D. is located at 300 HILLMONT AVE STE 502, VENTURA, CA, 93003. Phone: (805) 652-6222.
What is MELISSA BARGER, M.D.'s NPI number?
MELISSA BARGER, M.D.'s National Provider Identifier (NPI) is 1598020968, issued on 07/11/2012.
How many Infectious Disease Physician providers are there in the US?
There are 8,292 Infectious Disease Physician providers across 54 states in the US. The average Infectious Disease Physician provider writes 816 Medicare Part D claims per year.
What drugs does MELISSA BARGER, M.D. prescribe most often?
Based on 2023 Medicare Part D data, MELISSA BARGER, M.D.'s most frequently prescribed drugs include Cefazolin Sodium, Doxycycline Hyclate, Nitrofurantoin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MELISSA BARGER, M.D. accept Medicare?
MELISSA BARGER, M.D. appears in CMS Medicare data with 48 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MELISSA BARGER, M.D.'s credentials?
MELISSA BARGER, M.D.'s NPI is 1598020968 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