Active NPI 1346359270 Individual Practitioner Female Practitioner

Dr. Susan Hee-Kyung Ryu , MD

Ophthalmology • Stanford, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Susan Ryu, MD is a certified Ophthalmology practicing in Stanford, CA. With approximately 50 years of clinical experience since graduating from Yale University School Of Medicine in 1976, Dr. Ryu delivers high-quality medical care to the local community at 300 PASTEUR DR.

Dr. Ryu is affiliated with Stanford Health Care and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, imaging of optic nerve, exam of visual field with extended testing. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

300 Pasteur Dr

Stanford, CA 943052200

Telephone 6507234000

Associated Practice Facility / Clinic

🏢 Stanford Hospital And Clinic Facility NPI 1285683292

Medicare Profile & Education

Medical School

Yale University School Of Medicine

Graduation Year

1976

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Ophthalmology in Stanford, CA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

50 Yrs +36.3 yrs vs City Avg

City Avg: 13.7 Yrs

State Avg: 29.5 Yrs

Regional Practice Density

54 Specialists

Practicing in Stanford, CA (3116 Statewide)

Telehealth Adoption Rate

3.7% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

52.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Ryu (50 Years) 50 Yrs

Stanford Specialty Average (13.7 Years) 13.7 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
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	261	201	$127.92	$110.09
92133 Imaging of optic nerve	143	129	$88.83	$24.82
92083 Exam of visual field with extended testing	32	28	$227.56	$31.37
92134 Imaging of retina	19	19	$94.84	$29.13
92020 Examination of cornea and iris using lens device and slit lamp	18	16	$90.72	$23.82
99213 Established patient office or other outpatient visit, typically 15 minutes	16	15	$84.31	$74.65
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	15	15	$225.87	$150.56

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	208	169	$119.03	$112.62
92133 Imaging of optic nerve	117	111	$70.21	$25.58
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	31	31	$182.00	$153.26
99213 Established patient office or other outpatient visit, typically 15 minutes	24	17	$79.00	$76.20
92083 Exam of visual field with extended testing	23	21	$175.39	$32.17
92134 Imaging of retina	23	23	$78.43	$29.84

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	171	137	$156.80	$117.11
92133 Imaging of optic nerve	76	71	$70.03	$27.52
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	43	43	$195.95	$156.14
92083 Exam of visual field with extended testing	25	25	$158.08	$33.97
92134 Imaging of retina	16	16	$100.38	$35.53
92020 Examination of cornea and iris using lens device and slit lamp	16	15	$111.63	$26.37

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	200	183	$261.44	$140.29
92133 Imaging of optic nerve	83	80	$110.16	$33.65
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	40	40	$197.00	$157.52
92134 Imaging of retina	40	40	$176.80	$47.29
92083 Exam of visual field with extended testing	28	28	$233.61	$60.02
99213 Established patient office or other outpatient visit, typically 15 minutes	25	23	$377.40	$93.07
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	14	14	$527.86	$96.39
92020 Examination of cornea and iris using lens device and slit lamp	13	12	$99.08	$27.92

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	40	39	$201.32	$91.16
92133 Imaging of optic nerve	22	22	$47.00	$26.68
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	13	13	$152.00	$148.27
99213 Established patient office or other outpatient visit, typically 15 minutes	11	11	$103.00	$61.93

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	160	124	$135.82	$72.66
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	160	147	$173.75	$101.51
92133 Imaging of optic nerve	105	100	$82.42	$29.19
92083 Exam of visual field with extended testing	43	42	$216.53	$49.23
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	37	37	$161.41	$147.34
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	19	19	$130.00	$126.34
92134 Imaging of retina	16	13	$61.94	$30.77

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	92	84	$93.00	$88.81
99213 Established patient office or other outpatient visit, typically 15 minutes	90	61	$61.00	$57.94
92133 Imaging of optic nerve	79	76	$70.00	$26.57
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	58	58	$152.00	$145.00
92083 Exam of visual field with extended testing	40	35	$174.00	$32.80
92134 Imaging of retina	16	16	$72.00	$30.99
92020 Examination of cornea and iris using lens device and slit lamp	16	16	$96.00	$24.94
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	15	15	$187.93	$123.33

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	167	132	$147.19	$72.19
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	106	103	$230.66	$108.29
92133 Imaging of optic nerve	89	86	$161.35	$33.25
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	75	75	$322.79	$146.05
92083 Exam of visual field with extended testing	47	46	$235.04	$56.59
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	34	32	$235.62	$125.22
92020 Examination of cornea and iris using lens device and slit lamp	29	27	$96.21	$26.45
92134 Imaging of retina	23	23	$167.30	$33.00
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	12	12	$192.67	$89.06

Medical Specialties & State Licenses

CMS Verified: 2025-12-05

Ophthalmology Primary Specialty

NUCC Taxonomy Code: 207W00000X

State License CA G41683

An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

Ophthalmology - Glaucoma Specialist

NUCC Taxonomy Code: 207WX0009X

State License CA G41683

An ophthalmologist who specializes in the treatment of glaucoma and other disorders related to increased intraocular pressure and optic nerve damage. This specialty involves the medical and surgical treatment of these conditions.

Hospital & Practice Group Affiliations

Stanford Health Care

2452 Watson Ct, Palo Alto, CA 943033216

Phone: 6507236995

Stanford Health Care

300 Pasteur Dr, Stanford, CA 943052200

Phone: 6507234000

Secondary Practice Locations

795 El Camino Real

Palo Alto, CA 943012302

Phone: 6508532019

Practice Associates & Co-Workers

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

40 Associated Practitioners

Dr. Andrew Picel , MD

Radiology - Vascular & Interventional Radiology

NPI 1003012444

Doctor of Medicine (M.D.)

Dr. Matthew Wright , MD PHD

Psychiatry & Neurology - Psychiatry

NPI 1003041559

MDPHD

Dr. Quazi Al-Tariq , MD

Radiology - Diagnostic Radiology

NPI 1003059395

Doctor of Medicine (M.D.)

Angie Murkins , NP

Nurse Practitioner

NPI 1003061508

Nurse Practitioner

Dr. Jamshid Ghajar , MD PHD

Neurological Surgery

NPI 1003094384

MDPHD

Dr. Yu Kuang Lai , MD

Internal Medicine - Critical Care Medicine

NPI 1003127846

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

9 Historical Events

📍

Updated Practice Location December 05, 2025

Registered at 300 PASTEUR DR, STANFORD, CA 943052200 (Tel: 6507234000)

📍

Updated Business Mailing Address December 05, 2025

Registered at 300 PASTEUR DR, STANFORD, CA 943052200 (Tel: 6507234000)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) December 05, 2025

Ophthalmology (License #G41683 in CA)

✅

NPI Profile Active January 11, 2012

NPI status registered as active in NPPES database

📍

Updated Practice Location January 11, 2012

Registered at 795 EL CAMINO REAL, PALO ALTO, CA 943012302 (Tel: 6508532019)

📍

Updated Business Mailing Address January 11, 2012

Registered at 2350 W EL CAMINO REAL, 2ND FLOOR, MOUNTAIN VIEW, CA 940406201

👤

Provider Name / Credentials Updated January 11, 2012

Recorded as SUSAN RYU, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) January 11, 2012

Ophthalmology (License #G41683 in CA)

🟢

Initial NPI Registration & Enumeration August 30, 2006

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: 1346359270

Entity Type:

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

Enumeration Date: August 30, 2006

Last Update: December 05, 2025

Sole Proprietor: No

Update or Correct Profile

Mailing Address

300 Pasteur Dr

Stanford, CA 943052200

Phone: 6507234000

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.