2026 NPPES data Medical Toxicology (Emergency Medicine) Physician NPI 1609132984
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THERESA KIM

Medical Toxicology (Emergency Medicine) Physician in 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
124
Medicare Part D claims · 71 beneficiaries · Medical Toxicology (Emergency Medicine) Physician avg: 329
Generic prescribing
85%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

THERESA KIM filed 124 Medicare Part D claims in 2023 as a Medical Toxicology (Emergency Medicine) Physician in CHICAGO, Illinois, prescribing 85% generic.

124
Part D claims, 2023
85%
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.

THERESA KIM's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

124 35th percentile higher than 35% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

THERESA KIM practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 THERESA KIM?

Quality data not reported

NPI registry status

Active

Issued 04/11/2012

NPI 1609132984

Primary specialty

Medical Toxicology (Emergency Medicine) Physician

Rare

226 US NPIs in this specialty

Medicare Part D claims

124 62% vs specialty avg

2023 prescription claims

Specialty avg: 329

Specialty distribution in Illinois

How Medical Toxicology (Emergency Medicine) Physician compares to other specialties among Illinois providers

Illinois providers

Medical Toxicology (Emergency Medicine) Physician share within Illinois

1. Medical Toxicology (Emergency Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Medical Toxicology (Emergency Medicine) Physician share within Illinois

Specialty board-certification context

Estimated specialty board-certified rate — Medical Toxicology (Emergency Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Medical Toxicology (Emergency Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Medical Toxicology (Emergency Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Medical Toxicology (Emergency 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).

THERESA KIM appears in the CMS NPPES registry as a Medical Toxicology (Emergency Medicine) Physician provider at 1901 W. HARRISON ST., CHICAGO, IL, 60612, with a listed phone of (312) 864-0394. NPI 1609132984 was issued on 04/11/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KIM 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 124 prescription claims written by this provider, covering 71 Medicare beneficiaries and totaling roughly $4K in drug spend, split 15% brand-name and 85% generic by claim count, with an opioid prescribing rate of 19.4%. 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.

Medical Toxicology (Emergency Medicine) Physician is a narrow specialty nationwide, with 226 enrolled providers across 39 states and an average of 329 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

1901 W. HARRISON ST.
CHICAGO, IL 60612

Provider Details

NPI 1609132984
Specialty Medical Toxicology (Emergency Medicine) Physician
Gender Female
NPI Issued 04/11/2012

Hospital and facility affiliations

Facilities where THERESA KIM 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.

COOK COUNTY
CHICAGO, IL

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 — 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 THERESA KIM. To verify THERESA KIM'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.

Brand vs generic prescribing mix · Typical

THERESA KIM — brand share 15.0%
Specialty average (est.)

15% brand-name claims vs 85% generic, on 124 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.

124
Total Claims
$4K
Total Drug Cost
71
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
124
Total Day Supply
1,142
Brand vs Generic
15% brand / 85% generic
Brand Drug Cost
$4K
Generic Drug Cost
$852
Opioid Claims
24 (19.4% rate)
Antibiotic Claims
28

Patient Demographics

Average Patient Age
74.2 years
Avg HCC Risk Score
1.36
Gender Split
63% female / 37% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
18
Xarelto
Rivaroxaban
14

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

Medical Toxicology (Emergency Medicine) Physician Overview

How THERESA KIM fits within the Medical Toxicology (Emergency Medicine) Physician landscape nationally.

226
Medical Toxicology (Emergency Medicine) Physician Providers in US
39
States with Medical Toxicology (Emergency Medicine) Physician
329
Avg Claims per Provider

THERESA KIM's 124 claims are below the specialty average of 329.

Nearby Medical Toxicology (Emergency Medicine) Physician Providers in Illinois

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

Compare Medical Toxicology (Emergency Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is THERESA KIM's specialty?
THERESA KIM specializes in Medical Toxicology (Emergency Medicine) Physician and practices in CHICAGO, Illinois.
How much does THERESA KIM prescribe under Medicare Part D?
In 2023, THERESA KIM wrote 124 Medicare Part D claims totaling $4K in drug costs for 71 beneficiaries.
Where is THERESA KIM located?
THERESA KIM is located at 1901 W. HARRISON ST., CHICAGO, IL, 60612. Phone: (312) 864-0394.
What is THERESA KIM's NPI number?
THERESA KIM's National Provider Identifier (NPI) is 1609132984, issued on 04/11/2012.
Does THERESA KIM prescribe more brand-name or generic drugs?
THERESA KIM's prescribing is 15% brand-name and 85% generic drugs by claim count, with $4K in brand drug costs.
Does THERESA KIM prescribe opioids?
Yes, THERESA KIM had 24 opioid claims in 2023 with an opioid prescribing rate of 19.4%.
How many Medical Toxicology (Emergency Medicine) Physician providers are there in the US?
There are 226 Medical Toxicology (Emergency Medicine) Physician providers across 39 states in the US. The average Medical Toxicology (Emergency Medicine) Physician provider writes 329 Medicare Part D claims per year.
What drugs does THERESA KIM prescribe most often?
Based on 2023 Medicare Part D data, THERESA KIM's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Xarelto. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does THERESA KIM accept Medicare?
THERESA KIM appears in CMS Medicare data with 124 Part D claims and 71 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify THERESA KIM's credentials?
THERESA KIM's NPI is 1609132984. 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