Doctor profile · Federal record
Dr. Winston Chiong, M.D., PH.D.
Neurology Physician (CMS: Neurology) · San Francisco, CA
- NPI 1427201433
- Accepts Medicare
- MIPS 70.8 / 100 · 2023
- 20 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
505 Parnassus Ave Box 0114
San Francisco, CA 941430001
(415) 476-1489
fax (415) 476-3428
Credentials & registration
- NPI registered
- November 2008 — 18 yrs on file
- Year of graduation
- 2006 — 20 yrs since
- Specialty taxonomy
- 2084N0400X — NUCC code
- State license (1)
- California #A101024
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1427201433. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
109
Distinct HCPCS
3
Medicare allowed
$11,081
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
G2212 |
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or | 55 | 21 | $35 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 41 | 30 | $162 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 13 | 13 | $192 |
In context: peer comparison
Among 69 peers in San Francisco Neurology Physician, average services per provider: 156. This provider delivers 0.7× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
25
Patients
0
Total drug cost
$1,710
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Donepezil Hcl | Generic | 14 | 0 | $384 |
| Rivastigmine | Generic | 11 | 0 | $1,327 |
Hospital affiliations
Frequently asked questions
What is Dr. Winston Chiong's medical specialty?
Dr. Winston Chiong practices Neurology Physician in San Francisco, CA.
Where does Dr. Winston Chiong practice?
Dr. Winston Chiong practices at 505 Parnassus Ave Box 0114, San Francisco, CA 941430001. Office phone: 4154761489.
What is Dr. Winston Chiong's NPI?
Dr. Winston Chiong's National Provider Identifier (NPI) is 1427201433, issued by NPPES.
Does Dr. Winston Chiong accept Medicare assignment?
Yes. Dr. Winston Chiong accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Winston Chiong commonly perform?
Top Medicare-reported procedures in 2023: Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (HCPCS G2212); Established patient office or other outpatient visit (HCPCS 99215); New patient office or other outpatient visit (HCPCS 99205). Source: CMS Medicare Physician & Other Practitioners file.