Doctor profile · Federal record

Dr. Ann Chen, MD

Pulmonary Disease Physician (CMS: Pulmonary Disease) · Hospitalist Physician · Seattle, WA

  • NPI 1154344489
  • Accepts Medicare
  • MIPS 82.8 / 100 · 2023
  • 24 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
515 Minor Ave
Seattle, WA 981042120
(206) 386-9500
fax (206) 386-9605

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
July 14, 2010
Year of graduation
2002 — 24 yrs since
Specialty taxonomy
207RP1001X — NUCC code
State license (1)
Washington #MD00044863
Medicaid
WA #8465866

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1154344489. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
155
Distinct HCPCS
4
Medicare allowed
$22,805
HCPCS Description Services Patients Avg allowed
99291 Critical care, first 30-74 minutes 67 31 $227
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 62 31 $85
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 14 11 $53
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 12 11 $128

In context: peer comparison

Among 44 peers in this city , average services per provider: 51. This provider delivers 3.0× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Ann Chen's medical specialty?
Dr. Ann Chen practices Pulmonary Disease Physician in Seattle, WA.
Where does Dr. Ann Chen practice?
Dr. Ann Chen practices at 515 Minor Ave, Seattle, WA 981042120. Office phone: 2063869500.
What is Dr. Ann Chen's NPI?
Dr. Ann Chen's National Provider Identifier (NPI) is 1154344489, issued by NPPES.
Does Dr. Ann Chen accept Medicare assignment?
Yes. Dr. Ann Chen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ann Chen commonly perform?
Top Medicare-reported procedures in 2023: Critical care (HCPCS 99291); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231). Source: CMS Medicare Physician & Other Practitioners file.