2026 NPPES data Cardiovascular Disease Physician NPI 1871798470 M.D.
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RIMA ARNAOUT, M.D.

Cardiovascular Disease Physician in SAN FRANCISCO, 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
100
Medicare Part D claims · 19 beneficiaries · Cardiovascular Disease Physician avg: 3K
Generic prescribing
76%
generic claims · 24% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
74.4657/100
▼ 9 pts below national avg 83.1 · [object Object]
What the federal data reveals: RIMA ARNAOUT, M.D. is a Cardiovascular Disease Physician ([object Object]) practicing in SAN FRANCISCO, California with a Medicare Part D prescribing footprint of 100 claims across 19 beneficiaries — 24% brand-name prescribing . Their CMS MIPS Final Score of 74.4657/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: RIMA ARNAOUT, M.D. reported a CMS MIPS final score of 74.4657 out of 100, below the 83.1 national average, and filed 100 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)

RIMA ARNAOUT, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 3 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

RIMA ARNAOUT, M.D. at a glance

Below national average

NPI registry status

Active

Issued 06/15/2007

NPI 1871798470

Primary specialty

Cardiovascular Disease Physician

Mid-sized

24,795 US NPIs in this specialty

Medicare Part D claims

100 97% vs specialty avg

2023 prescription claims

Specialty avg: 3,033

MIPS final score

74.4657/100 8.634299999999996% 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

RIMA ARNAOUT, M.D.'s 2023 MIPS final score plotted against the Cardiovascular Disease Physician national average

Below national average
MIPS Final Score
74.4657/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Cardiovascular Disease Physician) — 74.4657/100 vs national avg 83.1

0%100%National avg83%74.5%
MIPS final score (Cardiovascular Disease Physician) — 74.4657/100 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).

RIMA ARNAOUT, M.D. is a Cardiovascular Disease Physician provider practicing in SAN FRANCISCO, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1871798470. 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.

RIMA ARNAOUT, M.D. appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider holding M.D. credentials at 521 PARNASSUS AVE RM 6222, SAN FRANCISCO, CA, 94143, with a listed phone of (415) 407-6180. NPI 1871798470 was issued on 06/15/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ARNAOUT 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 100 prescription claims written by this provider, covering 19 Medicare beneficiaries and totaling roughly $20K in drug spend, split 24% brand-name and 76% 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 74.4657/100 for the 2023 performance year, 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

521 PARNASSUS AVE RM 6222
SAN FRANCISCO, CA 94143

Provider Details

NPI 1871798470
Specialty Cardiovascular Disease Physician
Credentials M.D.
Gender Female
NPI Issued 06/15/2007

CMS Quality Score (MIPS)

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

74.4657
Final Score
Avg: 83.1
46.6814
Cost
76
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where RIMA ARNAOUT, 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.

REGENTS OF THE UNIVERSITY OF CALIFORNIA
SAN FRANCISCO, CA
UCSF MEDICAL GROUP BUSINESS SERVICES
SAN FRANCISCO, CA
UNIVERSITY OF CALIFORNIA SAN FRANCISCO
SAN FRANCISCO, 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 RIMA ARNAOUT, M.D.. To verify RIMA ARNAOUT, 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.

Brand vs generic prescribing mix · Typical

RIMA ARNAOUT, M.D. — brand share 24.0%
Specialty average (est.)

24% brand-name claims vs 76% generic, on 100 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.

100
Total Claims
$20K
Total Drug Cost
19
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
157
Total Day Supply
4,480
Brand vs Generic
24% brand / 76% generic
Brand Drug Cost
$17K
Generic Drug Cost
$3K

Patient Demographics

Average Patient Age
78.5 years
Avg HCC Risk Score
2.31

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Metoprolol Succinate
11

* 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 RIMA ARNAOUT, M.D. 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

RIMA ARNAOUT, M.D.'s 100 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 ARNAOUT.

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

Frequently Asked Questions

What is RIMA ARNAOUT, M.D.'s specialty?
RIMA ARNAOUT, M.D. specializes in Cardiovascular Disease Physician and practices in SAN FRANCISCO, California. Credentials: M.D..
How much does RIMA ARNAOUT, M.D. prescribe under Medicare Part D?
In 2023, RIMA ARNAOUT, M.D. wrote 100 Medicare Part D claims totaling $20K in drug costs for 19 beneficiaries.
What is RIMA ARNAOUT, M.D.'s Medicare quality score?
RIMA ARNAOUT, M.D. has a CMS MIPS Final Score of 74.4657/100, Cost: 46.6814. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is RIMA ARNAOUT, M.D. located?
RIMA ARNAOUT, M.D. is located at 521 PARNASSUS AVE RM 6222, SAN FRANCISCO, CA, 94143. Phone: (415) 407-6180.
What is RIMA ARNAOUT, M.D.'s NPI number?
RIMA ARNAOUT, M.D.'s National Provider Identifier (NPI) is 1871798470, issued on 06/15/2007.
Does RIMA ARNAOUT, M.D. prescribe more brand-name or generic drugs?
RIMA ARNAOUT, M.D.'s prescribing is 24% brand-name and 76% generic drugs by claim count, with $17K 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 RIMA ARNAOUT, M.D. prescribe most often?
Based on 2023 Medicare Part D data, RIMA ARNAOUT, M.D.'s most frequently prescribed drugs include Metoprolol Succinate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does RIMA ARNAOUT, M.D. accept Medicare?
RIMA ARNAOUT, M.D. appears in CMS Medicare data with 100 Part D claims and 19 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify RIMA ARNAOUT, M.D.'s credentials?
RIMA ARNAOUT, M.D.'s NPI is 1871798470 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