2026 NPPES data Geriatric Medicine (Internal Medicine) Physician NPI 1194119545
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TERESA KUO

Geriatric Medicine (Internal Medicine) Physician in MCHENRY, 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
970
Medicare Part D claims · 233 beneficiaries · Geriatric Medicine (Internal Medicine) Physician avg: 4K
Generic prescribing
84%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: TERESA KUO is a Geriatric Medicine (Internal Medicine) Physician ([object Object]) practicing in MCHENRY, Illinois with a Medicare Part D prescribing footprint of 970 claims across 233 beneficiaries — 16% brand-name prescribing .

What stands out: TERESA KUO filed 970 Medicare Part D claims in 2023 across MCHENRY, Illinois. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

TERESA KUO practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

TERESA KUO at a glance

Quality data not reported

NPI registry status

Active

Issued 03/24/2015

NPI 1194119545

Primary specialty

Geriatric Medicine (Internal Medicine) Physician

Niche

4,161 US NPIs in this specialty

Medicare Part D claims

970 78% vs specialty avg

2023 prescription claims

Specialty avg: 4,450

Specialty distribution in Illinois

How Geriatric Medicine (Internal Medicine) Physician compares to other specialties among Illinois providers

Illinois providers

Geriatric Medicine (Internal Medicine) Physician share within Illinois

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Geriatric Medicine (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).

TERESA KUO is a Geriatric Medicine (Internal Medicine) Physician provider practicing in MCHENRY, Illinois, according to the CMS National Plan and Provider Enumeration System (NPPES). NPI: 1194119545. 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.

TERESA KUO appears in the CMS NPPES registry as a Geriatric Medicine (Internal Medicine) Physician provider at 550 RIDGEVIEW DR, MCHENRY, IL, 60050, with a listed phone of (800) 455-6768. NPI 1194119545 was issued on 03/24/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KUO 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 970 prescription claims written by this provider, covering 233 Medicare beneficiaries and totaling roughly $53K in drug spend, split 16% brand-name and 84% generic by claim count, with an opioid prescribing rate of 3.0%. 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.

Geriatric Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 4,161 enrolled providers across 52 states and an average of 4,450 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

550 RIDGEVIEW DR
MCHENRY, IL 60050

Provider Details

NPI 1194119545
Specialty Geriatric Medicine (Internal Medicine) Physician
Gender Not reported
NPI Issued 03/24/2015

Hospital and facility affiliations

Facilities where TERESA KUO 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.

PERMANENTE MEDICAL GROUP INC
SAN FRANCISCO, CA
POST ACUTE SPECIALISTS OF MASSACHUSETTS PLLC
BRADFORD, MA

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 TERESA KUO. To verify TERESA KUO'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

TERESA KUO — brand share 16.0%
Specialty average (est.)

16% brand-name claims vs 84% generic, on 970 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.

970
Total Claims
$53K
Total Drug Cost
233
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,144
Total Day Supply
26,203
Brand vs Generic
16% brand / 84% generic
Brand Drug Cost
$32K
Generic Drug Cost
$21K
Opioid Claims
29 (3.0% rate)
Antibiotic Claims
47

Patient Demographics

Average Patient Age
75.5 years
Avg HCC Risk Score
2.18
Gender Split
67% female / 33% male
Age Distribution
<65: 35, 65-74: 78, 75-84: 61, 85+: 59

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Atorvastatin Calcium
55
Levetiracetam
50
Eliquis
Apixaban
37
Metoprolol Succinate
35
Allopurinol
33
Trazodone Hcl
30
Gabapentin
26
Levothyroxine Sodium
26
Pantoprazole Sodium
22
Incruse Ellipta
Umeclidinium Bromide
21

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

Geriatric Medicine (Internal Medicine) Physician Overview

How TERESA KUO fits within the Geriatric Medicine (Internal Medicine) Physician landscape nationally.

4,161
Geriatric Medicine (Internal Medicine) Physician Providers in US
52
States with Geriatric Medicine (Internal Medicine) Physician
4,450
Avg Claims per Provider

TERESA KUO's 970 claims are below the specialty average of 4,450.

Nearby Geriatric Medicine (Internal Medicine) Physician Providers in Illinois

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

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

Frequently Asked Questions

What is TERESA KUO's specialty?
TERESA KUO specializes in Geriatric Medicine (Internal Medicine) Physician and practices in MCHENRY, Illinois.
How much does TERESA KUO prescribe under Medicare Part D?
In 2023, TERESA KUO wrote 970 Medicare Part D claims totaling $53K in drug costs for 233 beneficiaries.
Where is TERESA KUO located?
TERESA KUO is located at 550 RIDGEVIEW DR, MCHENRY, IL, 60050. Phone: (800) 455-6768.
What is TERESA KUO's NPI number?
TERESA KUO's National Provider Identifier (NPI) is 1194119545, issued on 03/24/2015.
Does TERESA KUO prescribe more brand-name or generic drugs?
TERESA KUO's prescribing is 16% brand-name and 84% generic drugs by claim count, with $32K in brand drug costs.
Does TERESA KUO prescribe opioids?
Yes, TERESA KUO had 29 opioid claims in 2023 with an opioid prescribing rate of 3.0%.
How many Geriatric Medicine (Internal Medicine) Physician providers are there in the US?
There are 4,161 Geriatric Medicine (Internal Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Internal Medicine) Physician provider writes 4,450 Medicare Part D claims per year.
What drugs does TERESA KUO prescribe most often?
Based on 2023 Medicare Part D data, TERESA KUO's most frequently prescribed drugs include Atorvastatin Calcium, Levetiracetam, Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does TERESA KUO accept Medicare?
TERESA KUO appears in CMS Medicare data with 970 Part D claims and 233 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify TERESA KUO's credentials?
TERESA KUO's NPI is 1194119545. 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