Doctor profile · Federal record
Dr. Yon Sung, M.D.
Pulmonary Disease Physician (CMS: Pulmonary Disease) · Internal Medicine Physician · Critical Care Medicine (Internal Medicine) Physician · Stanford, CA
- NPI 1477629178
- Accepts Medicare
- MIPS 75.5 / 100 · 2023
- 23 yrs in practice
- Licensed in 2 states
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
300 Pasteur Dr
Stanford, CA 943052200
(650) 723-4000
Credentials & registration
- NPI registered
- November 2006 — 20 yrs on file
- Profile last updated
- April 17, 2024
- Year of graduation
- 2003 — 23 yrs since
- Specialty taxonomy
- 207RP1001X — NUCC code
- State licenses (2)
- California #A99234 · New York #241178
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1477629178. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
507
Distinct HCPCS
10
Medicare allowed
$38,773
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
94729 |
Test to examine how well the lungs exchange gases | 74 | 74 | $10 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 73 | 28 | $91 | |
94010 |
Test to measure expiratory airflow and volume | 63 | 63 | $9 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 56 | 38 | $166 | |
94060 |
Test to measure expiratory airflow and volume changes before and after medication administration | 42 | 42 | $12 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 39 | 34 | $113 | |
94726 |
Test to determine lung volumes using sensors | 29 | 29 | $14 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 26 | 25 | $200 | |
93451 |
Insertion of tube in right heart chambers for measurement | 24 | 23 | $139 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 21 | 17 | $137 |
In context: peer comparison
Among 15 peers in Stanford Pulmonary Disease Physician, average services per provider: 61. This provider delivers 8.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
598
Patients
36
Total drug cost
$2,724,745
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Sildenafil Citrate | Generic | 84 | 11 | $39,930 |
| Ambrisentan | Generic | 61 | 0 | $392,175 |
| Opsumit (Macitentan) | Brand | 58 | 0 | $714,018 |
| Adempas (Riociguat) | Brand | 55 | 0 | $758,797 |
| Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) | Brand | 50 | 11 | $43,338 |
| Spiriva Respimat (Tiotropium Bromide) | Brand | 44 | 0 | $28,049 |
| Tadalafil | Generic | 44 | 0 | $56,579 |
| Uptravi (Selexipag) | Brand | 34 | 0 | $677,259 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 29 | 14 | $1,369 |
| Fluticasone Propionate | Generic | 27 | 0 | $660 |
Hospital affiliations
Frequently asked questions
What is Dr. Yon Sung's medical specialty?
Dr. Yon Sung practices Pulmonary Disease Physician in Stanford, CA.
Where does Dr. Yon Sung practice?
Dr. Yon Sung practices at 300 Pasteur Dr, Stanford, CA 943052200. Office phone: 6507234000.
What is Dr. Yon Sung's NPI?
Dr. Yon Sung's National Provider Identifier (NPI) is 1477629178, issued by NPPES.
Does Dr. Yon Sung accept Medicare assignment?
Yes. Dr. Yon Sung accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Yon Sung commonly perform?
Top Medicare-reported procedures in 2023: Test to examine how well the lungs exchange gases (HCPCS 94729); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Test to measure expiratory airflow and volume (HCPCS 94010). Source: CMS Medicare Physician & Other Practitioners file.