Doctor profile · Federal record

Dr. Leslie Mattson, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Hospitalist Physician · Bloomingdale, IL

  • NPI 1487975181
  • Accepts Medicare
  • 16 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
220 Springfield Dr Ste 210
Bloomingdale, IL 601082215
(630) 510-2609
fax (630) 539-6049
Additional location
25 N Winfield RD, Ste 400
Winfield, IL 60190
(630) 456-7178
fax (630) 456-7486
Mailing address
Po Box 713260
Chicago, IL 606771260

Credentials & registration

NPPES · NUCC
NPI registered
June 2010 — 16 yrs on file
Profile last updated
June 28, 2024
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
Illinois #036131651 · Illinois #036.131651

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1487975181. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
939
Distinct HCPCS
5
Medicare allowed
$110,122
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 327 196 $81
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 284 191 $122
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 192 181 $177
99239 Hospital discharge day management, more than 30 minutes 117 112 $118
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 19 16 $52

In context: peer comparison

Among 6 peers in Bloomingdale Internal Medicine Physician, average services per provider: 106. This provider delivers 8.9× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$20
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Janssen Pharmaceuticals, INC 1 $19.86

By nature of payment

Food and Beverage
$20

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
12
Patients
12
Total drug cost
$65
Drug Type Claims Patients Total cost
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 12 12 $65

Frequently asked questions

Auto-generated from federal data
What is Dr. Leslie Mattson's medical specialty?
Dr. Leslie Mattson practices Internal Medicine Physician in Bloomingdale, IL.
Where does Dr. Leslie Mattson practice?
Dr. Leslie Mattson practices at 220 Springfield Dr Ste 210, Bloomingdale, IL 601082215. Office phone: 6305102609.
What is Dr. Leslie Mattson's NPI?
Dr. Leslie Mattson's National Provider Identifier (NPI) is 1487975181, issued by NPPES.
Does Dr. Leslie Mattson accept Medicare assignment?
Yes. Dr. Leslie Mattson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Leslie Mattson commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.