Doctor profile · Federal record

Dr. Then Tong, DO

Internal Medicine Physician (CMS: Internal Medicine) · Student in an Organized Health Care Education/Training Program · Des Moines, IA

  • NPI 1447578992
  • Accepts Medicare
  • 16 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1201 Penn Ave
Des Moines, IA 503162339
(515) 266-1000
fax (515) 266-1824

Credentials & registration

NPPES · NUCC
NPI registered
May 2010 — 16 yrs on file
Profile last updated
January 20, 2014
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Iowa #4475
Medicaid
IA #1447578992

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1447578992. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,578
Distinct HCPCS
7
Medicare allowed
$170,510
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 425 178 $77
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 394 175 $117
99239 Hospital discharge day management, more than 30 minutes 273 258 $113
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 250 230 $171
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 179 56 $49
99291 Critical care, first 30-74 minutes 35 15 $212
99238 Hospital discharge day management, 30 minutes or less 22 22 $80

In context: peer comparison

Among 35 peers in Des Moines Internal Medicine Physician, average services per provider: 112. This provider delivers 14× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
256
Patients
207
Total drug cost
$2,513
Drug Type Claims Patients Total cost
Azithromycin Generic 30 30 $147
Furosemide Generic 24 20 $78
Cefpodoxime Proxetil Generic 22 21 $742
Metoprolol Succinate Generic 22 21 $219
Metoprolol Tartrate Generic 20 0 $74
Prednisone Generic 20 18 $49
Lisinopril Generic 18 14 $82
Pantoprazole Sodium Generic 17 16 $279
Cefdinir Generic 16 16 $389
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 15 15 $114

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Then Tong's medical specialty?
Dr. Then Tong practices Internal Medicine Physician in Des Moines, IA.
Where does Dr. Then Tong practice?
Dr. Then Tong practices at 1201 Penn Ave, Des Moines, IA 503162339. Office phone: 5152661000.
What is Dr. Then Tong's NPI?
Dr. Then Tong's National Provider Identifier (NPI) is 1447578992, issued by NPPES.
Does Dr. Then Tong accept Medicare assignment?
Yes. Dr. Then Tong accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Then Tong 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); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.