2026 NPPES data Internal Medicine Physician NPI 1871567115 MD
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KUSHLEEN DHILLON, MD

Internal Medicine Physician in SOUTH ELGIN, 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
7K
Medicare Part D claims · 439 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

KUSHLEEN DHILLON, MD filed 6,779 Medicare Part D claims in 2023 as a Internal Medicine Physician in SOUTH ELGIN, Illinois, prescribing 87% generic.

7K
Part D claims, 2023
87%
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.

KUSHLEEN DHILLON, MD's Medicare Part D volume vs every U.S. prescriber

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

6,779 Top 4% higher than 96% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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)

KUSHLEEN DHILLON, MD 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 KUSHLEEN DHILLON, MD?

Quality data not reported

NPI registry status

Active

Issued 02/14/2006

NPI 1871567115

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

6,779 150% 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).

KUSHLEEN DHILLON, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 486 RANDALL RD UNIT B, SOUTH ELGIN, IL, 60177, with a listed phone of (847) 468-1206. NPI 1871567115 was issued on 02/14/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DHILLON 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 6,779 prescription claims written by this provider, covering 439 Medicare beneficiaries and totaling roughly $674K in drug spend, split 13% brand-name and 87% generic by claim count, with an opioid prescribing rate of 1.6%. 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

486 RANDALL RD UNIT B
SOUTH ELGIN, IL 60177

Provider Details

NPI 1871567115
Specialty Internal Medicine Physician
Credentials MD
Gender Female
NPI Issued 02/14/2006

Hospital and facility affiliations

Facilities where KUSHLEEN DHILLON, MD 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.

ADVOCATE HEALTH AND HOSPITALS CORPORATION
BUFFALO GROVE, 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 KUSHLEEN DHILLON, MD. To verify KUSHLEEN DHILLON, 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.

Brand vs generic prescribing mix · Typical

KUSHLEEN DHILLON, MD — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 6,779 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.

6,779
Total Claims
$674K
Total Drug Cost
439
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
15,645
Total Day Supply
457,972
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$558K
Generic Drug Cost
$112K
Opioid Claims
107 (1.6% rate)
Antibiotic Claims
166

Patient Demographics

Average Patient Age
74.2 years
Avg HCC Risk Score
1.17
Gender Split
72% female / 28% male
Age Distribution
<65: 21, 65-74: 221, 75-84: 156, 85+: 41

Top Prescribed Drugs (Medicare Part D)

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

What KUSHLEEN DHILLON, MD 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
Atorvastatin Calcium
450
Levothyroxine Sodium
407
Omeprazole
326
Lisinopril
231
Metformin Hcl
218
Losartan Potassium
201
Amlodipine Besylate
193
Meloxicam
186
Metoprolol Succinate
179
Gabapentin
151

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

Internal Medicine Physician Overview

How KUSHLEEN DHILLON, 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

KUSHLEEN DHILLON, MD's 6,779 claims are above 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 DHILLON.

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

Frequently Asked Questions

What is KUSHLEEN DHILLON, MD's specialty?
KUSHLEEN DHILLON, MD specializes in Internal Medicine Physician and practices in SOUTH ELGIN, Illinois. Credentials: MD.
How much does KUSHLEEN DHILLON, MD prescribe under Medicare Part D?
In 2023, KUSHLEEN DHILLON, MD wrote 6,779 Medicare Part D claims totaling $674K in drug costs for 439 beneficiaries.
Where is KUSHLEEN DHILLON, MD located?
KUSHLEEN DHILLON, MD is located at 486 RANDALL RD UNIT B, SOUTH ELGIN, IL, 60177. Phone: (847) 468-1206.
What is KUSHLEEN DHILLON, MD's NPI number?
KUSHLEEN DHILLON, MD's National Provider Identifier (NPI) is 1871567115, issued on 02/14/2006.
Does KUSHLEEN DHILLON, MD prescribe more brand-name or generic drugs?
KUSHLEEN DHILLON, MD's prescribing is 13% brand-name and 87% generic drugs by claim count, with $558K in brand drug costs.
Does KUSHLEEN DHILLON, MD prescribe opioids?
Yes, KUSHLEEN DHILLON, MD had 107 opioid claims in 2023 with an opioid prescribing rate of 1.6%.
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.
What drugs does KUSHLEEN DHILLON, MD prescribe most often?
Based on 2023 Medicare Part D data, KUSHLEEN DHILLON, MD's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Omeprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KUSHLEEN DHILLON, MD accept Medicare?
KUSHLEEN DHILLON, MD appears in CMS Medicare data with 6,779 Part D claims and 439 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KUSHLEEN DHILLON, MD's credentials?
KUSHLEEN DHILLON, MD's NPI is 1871567115 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