Doctor profile · Federal record

Dr. Stephen Woo, D.O.

Family Medicine Physician (CMS: Family Practice) · Sequim, WA

  • NPI 1811256449
  • Accepts Medicare
  • 14 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
800 N 5Th Ave Ste 101
Sequim, WA 983823045
(360) 565-0999
fax (360) 582-4221
Mailing address
Po Box 850
Port Angeles, WA 983620146

Credentials & registration

NPPES · NUCC
NPI registered
May 2012 — 14 yrs on file
Profile last updated
May 23, 2022
Year of graduation
2012 — 14 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
Washington #OP60527165

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1811256449. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,848
Distinct HCPCS
8
Medicare allowed
$171,351
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 1,193 581 $96
99213 Established patient office or other outpatient visit, 20-29 minutes 373 270 $65
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit 118 118 $164
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 63 63 $128
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional 53 43 $9
99495 Transitional care management services for problem of at least moderate complexity 24 24 $138
99203 New patient office or other outpatient visit, 30-44 minutes 13 13 $82
99212 Established patient office or other outpatient visit, 10-19 minutes 11 11 $32

In context: peer comparison

Among 5 peers in this city , average services per provider: 126. This provider delivers 15× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,796
Patients
928
Total drug cost
$37,425
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 458 150 $5,934
Levothyroxine Sodium Generic 343 97 $4,392
Lisinopril Generic 283 93 $2,884
Losartan Potassium Generic 232 70 $2,911
Metoprolol Succinate Generic 214 75 $4,552
Amlodipine Besylate Generic 203 72 $1,858
Gabapentin Generic 131 34 $2,359
Omeprazole Generic 129 56 $1,670
Metformin Hcl Generic 122 41 $1,465
Hydrochlorothiazide Generic 120 43 $844

Frequently asked questions

Auto-generated from federal data
What is Dr. Stephen Woo's medical specialty?
Dr. Stephen Woo practices Family Medicine Physician in Sequim, WA.
Where does Dr. Stephen Woo practice?
Dr. Stephen Woo practices at 800 N 5Th Ave Ste 101, Sequim, WA 983823045. Office phone: 3605650999.
What is Dr. Stephen Woo's NPI?
Dr. Stephen Woo's National Provider Identifier (NPI) is 1811256449, issued by NPPES.
Does Dr. Stephen Woo accept Medicare assignment?
Yes. Dr. Stephen Woo accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Stephen Woo commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit (HCPCS G0438). Source: CMS Medicare Physician & Other Practitioners file.