2026 NPPES data Internal Medicine Physician NPI 1548910052 MD
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CHLOE ARIMA, MD

Internal Medicine Physician in NORTH CHICAGO, Illinois. 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
74
Medicare Part D claims · 33 beneficiaries · Internal Medicine Physician avg: 3K
What the federal data reveals: CHLOE ARIMA, MD is a Internal Medicine Physician ([object Object]) practicing in NORTH CHICAGO, Illinois with a Medicare Part D prescribing footprint of 74 claims across 33 beneficiaries .

What stands out: CHLOE ARIMA, MD filed 74 Medicare Part D claims in 2023 across NORTH CHICAGO, Illinois. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

CHLOE ARIMA, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

CHLOE ARIMA, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 03/27/2022

NPI 1548910052

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

74 97% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Illinois

How Internal Medicine Physician compares to other specialties among Illinois providers

Illinois providers

Internal Medicine Physician share within Illinois

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

Specialty board-certification context

Estimated specialty board-certified rate — Internal Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Internal Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Internal Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Internal Medicine Physician) — ABMS / AOA estimate

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).

CHLOE ARIMA, MD is a Internal Medicine Physician provider practicing in NORTH CHICAGO, Illinois, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1548910052. 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.

CHLOE ARIMA, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 3333 GREEN BAY RD, NORTH CHICAGO, IL, 60064, with a listed phone of (847) 578-3329. NPI 1548910052 was issued on 03/27/2022. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ARIMA 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 74 prescription claims written by this provider, covering 33 Medicare beneficiaries and totaling roughly $5K 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.

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

3333 GREEN BAY RD
NORTH CHICAGO, IL 60064

Provider Details

NPI 1548910052
Specialty Internal Medicine Physician
Credentials MD
Gender Female
NPI Issued 03/27/2022

License & disciplinary context — Illinois IDFPR 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 ~42K Illinois medical licensees in 2023 — they are NOT specific to CHLOE ARIMA, MD. To verify CHLOE ARIMA, MD's current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases

IDFPR 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 Illinois 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.

74
Total Claims
$5K
Total Drug Cost
33
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
109
Total Day Supply
2,801
Generic Drug Cost
$1K

Patient Demographics

Average Patient Age
73.5 years
Avg HCC Risk Score
2.88
Gender Split
52% female / 48% male

Internal Medicine Physician Overview

How CHLOE ARIMA, MD 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

CHLOE ARIMA, MD's 74 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Illinois

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

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

Frequently Asked Questions

What is CHLOE ARIMA, MD's specialty?
CHLOE ARIMA, MD specializes in Internal Medicine Physician and practices in NORTH CHICAGO, Illinois. Credentials: MD.
How much does CHLOE ARIMA, MD prescribe under Medicare Part D?
In 2023, CHLOE ARIMA, MD wrote 74 Medicare Part D claims totaling $5K in drug costs for 33 beneficiaries.
Where is CHLOE ARIMA, MD located?
CHLOE ARIMA, MD is located at 3333 GREEN BAY RD, NORTH CHICAGO, IL, 60064. Phone: (847) 578-3329.
What is CHLOE ARIMA, MD's NPI number?
CHLOE ARIMA, MD's National Provider Identifier (NPI) is 1548910052, issued on 03/27/2022.
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.
Does CHLOE ARIMA, MD accept Medicare?
CHLOE ARIMA, MD appears in CMS Medicare data with 74 Part D claims and 33 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHLOE ARIMA, MD's credentials?
CHLOE ARIMA, MD's NPI is 1548910052 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.
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