Active NPI 1417338443 Individual Practitioner Male Practitioner

Dr. Hanwool Ryan Choi , MD

Anesthesiology • Seattle, WA

Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Hanwool Choi, MD is a certified Anesthesiology practicing in Seattle, WA. With approximately 11 years of clinical experience since graduating from George Washington University School Of Medicine in 2015, Dr. Choi delivers high-quality medical care to the local community at 201 16TH AVE E.

Dr. Choi does not directly accept Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include follow-up hospital inpatient care per day, anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope, anesthesia for procedure on large bowel using an endoscope. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

201 16th Ave E

Seattle, WA 981125226

Telephone 2063263000

Fax 8775152975

Associated Practice Facility / Clinic

🏢 Central Hosp Group Hlth Facility NPI 1336251248

Medicare Profile & Education

Medical School

George Washington University School Of Medicine

Graduation Year

2015

Medicare Assignment

Not Specified

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Anesthesiology in Seattle, WA

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

11 Yrs -7.4 yrs vs City Avg

City Avg: 18.4 Yrs

State Avg: 23.7 Yrs

Regional Practice Density

702 Specialists

Practicing in Seattle, WA (1746 Statewide)

Telehealth Adoption Rate

1.6% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

84.8% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Choi (11 Years) 11 Yrs

Seattle Specialty Average (18.4 Years) 18.4 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	47	42	$138.00	$51.71
00731 Anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope	44	44	$744.00	$86.01
00811 Anesthesia for procedure on large bowel using an endoscope	26	26	$605.85	$71.78
01996 Daily hospital management of continuous spinal drug administration	18	15	$264.00	$64.85
99213 Established patient office or other outpatient visit, typically 15 minutes	15	15	$87.00	$69.44
62323 Injection of substance into lower spine canal using imaging guidance	14	13	$796.86	$101.60
36620 Insertion of artery tube for blood sampling or infusion through skin	14	14	$120.29	$45.07
00732 Anesthesia for procedure on gallbladder, pancreas, or liver using an endoscope	14	14	$892.57	$110.15
00790 Anesthesia for procedure in upper abdomen including use of an endoscope	14	14	$1357.71	$174.08
00630 Anesthesia for other procedure on lower spine	14	14	$1602.86	$230.65

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
00731 Anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope	32	32	$715.00	$87.39
99231 Follow-up hospital inpatient care per day, typically 15 minutes	25	24	$120.84	$51.86
99213 Established patient office or other outpatient visit, typically 15 minutes	24	22	$87.00	$71.19
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	20	20	$182.00	$105.26
00732 Anesthesia for procedure on gallbladder, pancreas, or liver using an endoscope	20	19	$1020.80	$134.98
01996 Daily hospital management of continuous spinal drug administration	18	17	$264.00	$65.62
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	14	14	$141.00	$89.04
62323 Injection of substance into lower spine canal using imaging guidance	14	13	$789.07	$107.04
36620 Insertion of artery tube for blood sampling or infusion through skin	14	14	$119.00	$46.67

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	61	48	$104.54	$41.29
62323 Injection of substance into lower spine canal using imaging guidance	33	32	$759.45	$108.07
99213 Established patient office or other outpatient visit, typically 15 minutes	32	31	$78.75	$69.55
00731 Anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope	28	27	$766.86	$98.77
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	25	25	$143.52	$89.77
01996 Daily hospital management of continuous spinal drug administration	24	20	$264.00	$64.92
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	18	18	$168.22	$106.28
64493 Injection of lower or sacral spine facet joint using imaging guidance, single level	15	14	$691.33	$134.96
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	15	15	$301.60	$140.46
64494 Injection of lower or sacral spine facet joint using imaging guidance, second level	14	13	$265.29	$73.09
27096 Injection of anesthetic or steroid into joint between lower spine and hip bone using imaging guidance	14	14	$545.32	$106.51
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	12	12	$84.00	$33.13
01402 Anesthesia for procedure for total knee joint replacement	11	11	$1400.00	$222.98
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	11	11	$37.73	$35.43

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	69	60	$104.00	$40.06
00731 Anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope	58	58	$822.34	$99.99
01996 Daily hospital management of continuous spinal drug administration	27	25	$264.00	$67.59
36620 Insertion of artery tube for blood sampling or infusion through skin	22	22	$118.00	$45.86
00790 Anesthesia for procedure in upper abdomen including use of an endoscope	16	16	$1694.00	$218.33
99213 Established patient office or other outpatient visit, typically 15 minutes	15	15	$65.00	$65.00
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	13	13	$84.00	$33.22
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	13	13	$148.00	$89.81
00732 Anesthesia for procedure on gallbladder, pancreas, or liver using an endoscope	13	13	$1008.62	$131.89
62323 Injection of substance into lower spine canal using imaging guidance	12	11	$724.00	$108.00

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	47	37	$103.00	$42.37
00731 Anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope	20	20	$853.60	$111.98
01996 Daily hospital management of continuous spinal drug administration	16	14	$264.00	$69.39

Medical Specialties & State Licenses

CMS Verified: 2026-01-13

Anesthesiology Primary Specialty

NUCC Taxonomy Code: 207L00000X

State License WA MD61042070

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

Anesthesiology

NUCC Taxonomy Code: 207L00000X

State License MO 2015017216

Secondary Practice Locations

1 Barnes Jewish Hospital Plz

Saint Louis, MO 631101003

Phone: 3143625000

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners

Dr. Jaime Michaelson , MD

Obstetrics & Gynecology - Obstetrics

NPI 1003013426

Doctor of Medicine (M.D.)

Dr. Vivian Yu , MD

Obstetrics & Gynecology

NPI 1003348723

Doctor of Medicine (M.D.)

Dr. Andrew Feld , MD

Internal Medicine - Gastroenterology

NPI 1003818709

Doctor of Medicine (M.D.)

Dr. Michael Nevins , MD

Internal Medicine - Pulmonary Disease

NPI 1003969270

Doctor of Medicine (M.D.)

Carolyn Berg , LW

Social Worker

NPI 1013042076

Dr. Michael Cho , MD

Internal Medicine - Rheumatology

NPI 1013116722

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

10 Historical Events

📍

Updated Practice Location January 13, 2026

Registered at 201 16TH AVE E, SEATTLE, WA 981125226 (Tel: 2063263000)

📍

Updated Business Mailing Address January 13, 2026

Registered at 201 16TH AVE E, SEATTLE, WA 981125226 (Tel: 2063263000)

👤

Provider Name / Credentials Updated January 13, 2026

Recorded as HANWOOL CHOI, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) January 13, 2026

Anesthesiology (License #MD61042070 in WA)

✅

NPI Profile Active June 16, 2015

NPI status registered as active in NPPES database

📍

Updated Practice Location June 16, 2015

Registered at 1 BARNES JEWISH HOSPITAL PLZ, SAINT LOUIS, MO 631101003 (Tel: 3143625000)

📍

Updated Business Mailing Address June 16, 2015

Registered at 660 S EUCLID AVE, DEPARTMENT OF ANESTHESIOLOGY, BOX 8054, SAINT LOUIS, MO 631101010

👤

Provider Name / Credentials Updated June 16, 2015

Recorded as HANWOOL CHOI

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) June 16, 2015

Anesthesiology (License #2015017216 in MO)

🟢

Initial NPI Registration & Enumeration June 16, 2015

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1417338443

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: June 16, 2015

Last Update: January 13, 2026

Sole Proprietor: No

Update or Correct Profile

Mailing Address

201 16th Ave E

Seattle, WA 981125226

Phone: 2063263000

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.