Doctor profile · Federal record

Dr. David Chiou, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Mundelein, IL

  • NPI 1093779084
  • Accepts Medicare
  • 30 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
157 N Seymour Ave
Mundelein, IL 600602304
(847) 566-0300
fax (847) 566-2818

Credentials & registration

NPPES · NUCC
NPI registered
April 2006 — 20 yrs on file
Profile last updated
May 26, 2015
Year of graduation
1996 — 30 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Illinois #036098964
Medicaid
IL #036098964

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1093779084. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,695
Distinct HCPCS
10
Medicare allowed
$320,536
HCPCS Description Services Patients Avg allowed
99310 Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 1,411 110 $150
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes 485 21 $74
99214 Established patient office or other outpatient visit, 30-39 minutes 237 129 $128
36415 Insertion of needle into vein for collection of blood sample 174 119 $8
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 95 95 $133
G0444 Annual depression screening, 5 to 15 minutes 76 76 $19
99306 Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 64 64 $178
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 41 20 $105
81002 Urinalysis, manual test 22 13 $3
99215 Established patient office or other outpatient visit, 40-54 minutes 21 17 $178

In context: peer comparison

Among 2 peers in Mundelein Internal Medicine Physician, average services per provider: 161. This provider delivers 17× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$361
Transactions
16
Manufacturers
10
Payer (manufacturer) Industry Txns Amount
Novo Nordisk INC 4 $102.20
Ardelyx, INC. 3 $57.77
Abbvie INC. 2 $42.09
Otsuka America Pharmaceutical, INC. 1 $29.38
Janssen Pharmaceuticals, INC 1 $25.27
Sumitomo Pharma America, INC. 1 $24.40
Salix Pharmaceuticals, A Division of Bausch Health US, LLC 1 $23.72
E.R. Squibb & Sons, L.L.C. 1 $23.34
Electromed, INC. 1 $17.24
Scpharmaceuticals INC. 1 $15.30

By nature of payment

Food and Beverage
$361

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,730
Patients
796
Total drug cost
$135,206
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 516 111 $7,095
Amlodipine Besylate Generic 336 79 $3,371
Levothyroxine Sodium Generic 307 69 $4,391
Eliquis (Apixaban) Brand 275 36 $85,163
Lisinopril Generic 273 58 $2,302
Pantoprazole Sodium Generic 238 50 $7,960
Gabapentin Generic 233 46 $4,361
Metformin Hcl Generic 233 55 $2,081
Furosemide Generic 218 48 $1,573
Metoprolol Tartrate Generic 215 49 $1,704

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. David Chiou's medical specialty?
Dr. David Chiou practices Internal Medicine Physician in Mundelein, IL.
Where does Dr. David Chiou practice?
Dr. David Chiou practices at 157 N Seymour Ave, Mundelein, IL 600602304. Office phone: 8475660300.
What is Dr. David Chiou's NPI?
Dr. David Chiou's National Provider Identifier (NPI) is 1093779084, issued by NPPES.
Does Dr. David Chiou accept Medicare assignment?
Yes. Dr. David Chiou accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. David Chiou commonly perform?
Top Medicare-reported procedures in 2023: Subsequent nursing facility care with high level of medical decision making (HCPCS 99310); Subsequent nursing facility care with straightforward level of medical decision making (HCPCS 99308); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.