Doctor profile · Federal record

Dr. Thuan Ong, MD, MPH

Geriatric Medicine (Internal Medicine) Physician · Seattle, WA

  • NPI 1801872635
  • MIPS 87.0 / 100 · 2023
  • 21 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
325 9Th Ave
Seattle, WA 981042420
(206) 744-4191
fax (206) 744-8527
Mailing address
Po Box 50095
Seattle, WA 981455095

Credentials & registration

NPPES · NUCC
NPI registered
December 2005 — 21 yrs on file
Profile last updated
December 20, 2013
Specialty taxonomy
207RG0300X — NUCC code
State license (1)
Washington #MD60011516
Medicaid
WA #1801872635

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1801872635. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
772
Distinct HCPCS
9
Medicare allowed
$110,558
HCPCS Description Services Patients Avg allowed
99306 Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 259 242 $195
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 168 129 $114
99310 Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 84 69 $165
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 80 32 $85
99305 Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes 67 64 $143
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes 53 49 $80
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 28 28 $139
G0317 Prolonged nursing facility evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by the physician or qualifi 19 13 $33
99316 Nursing facility discharge management, more than 30 minutes 14 14 $142

In context: peer comparison

Among 11 peers in Seattle Geriatric Medicine (Internal Medicine) Physician, average services per provider: 57. This provider delivers 14× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
713
Patients
126
Total drug cost
$24,233
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 130 34 $1,572
Metoprolol Succinate Generic 72 22 $757
Levothyroxine Sodium Generic 67 16 $699
Eliquis (Apixaban) Brand 53 0 $15,473
Gabapentin Generic 50 13 $683
Potassium Chloride Generic 49 0 $840
Amlodipine Besylate Generic 48 17 $405
Diclofenac Sodium Generic 48 11 $1,740
Duloxetine Hcl Generic 31 0 $491
Metoprolol Tartrate Generic 31 0 $273

Frequently asked questions

Auto-generated from federal data
What is Dr. Thuan Ong's medical specialty?
Dr. Thuan Ong practices Geriatric Medicine (Internal Medicine) Physician in Seattle, WA.
Where does Dr. Thuan Ong practice?
Dr. Thuan Ong practices at 325 9Th Ave, Seattle, WA 981042420. Office phone: 2067444191.
What is Dr. Thuan Ong's NPI?
Dr. Thuan Ong's National Provider Identifier (NPI) is 1801872635, issued by NPPES.
What procedures does Dr. Thuan Ong commonly perform?
Top Medicare-reported procedures in 2023: Initial nursing facility care with high level of medical decision making (HCPCS 99306); Subsequent nursing facility care with moderate level of medical decision making (HCPCS 99309); Subsequent nursing facility care with high level of medical decision making (HCPCS 99310). Source: CMS Medicare Physician & Other Practitioners file.