Doctor profile · Federal record
Dr. Won-Tak Choi, M.D., PH.D.
Anatomic Pathology Physician (CMS: Pathology) · Anatomic Pathology & Clinical Pathology Physician · San Francisco, CA
- NPI 1275860918
- Accepts Medicare
- MIPS 70.8 / 100 · 2023
- 17 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
505 Parnassus Ave # M552
San Francisco, CA 941432204
(415) 353-9533 - Additional location
-
1001 Potrero Ave # 6D, Sfgh OB GYN
San Francisco, CA 941103518
(909) 544-1955 - Mailing address
-
1 Bayside Village Pl, Apt 103
San Francisco, CA 941071437
Credentials & registration
- NPI registered
- November 2009 — 17 yrs on file
- Profile last updated
- October 22, 2024
- Year of graduation
- 2009 — 17 yrs since
- Specialty taxonomy
- 207ZP0101X — NUCC code
- State license (1)
- California #A132954
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1275860918. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,480
Distinct HCPCS
8
Medicare allowed
$64,186
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
88305 |
Pathology examination of tissue using a microscope, intermediate complexity | 827 | 387 | $42 | |
88341 |
Special stained specimen slides to examine tissue, each additional procedure | 239 | 54 | $32 | |
88342 |
Special stained specimen slides to examine tissue, initial procedure | 171 | 136 | $39 | |
88307 |
Pathology examination of tissue using a microscope, moderately high complexity | 79 | 57 | $94 | |
88313 |
Special stained specimen slides to examine tissue including interpretation and report | 63 | 28 | $14 | |
88304 |
Pathology examination of tissue using a microscope, moderately low complexity | 42 | 30 | $13 | |
88309 |
Pathology examination of tissue using a microscope, high complexity | 32 | 24 | $165 | |
88312 |
Special stained specimen slides to identify organisms including interpretation and report | 27 | 24 | $30 |
In context: peer comparison
Among 13 peers in San Francisco Anatomic Pathology Physician, average services per provider: 105. This provider delivers 14× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. Won-Tak Choi's medical specialty?
Dr. Won-Tak Choi practices Anatomic Pathology Physician in San Francisco, CA.
Where does Dr. Won-Tak Choi practice?
Dr. Won-Tak Choi practices at 505 Parnassus Ave # M552, San Francisco, CA 941432204. Office phone: 4153539533.
What is Dr. Won-Tak Choi's NPI?
Dr. Won-Tak Choi's National Provider Identifier (NPI) is 1275860918, issued by NPPES.
Does Dr. Won-Tak Choi accept Medicare assignment?
Yes. Dr. Won-Tak Choi accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Won-Tak Choi commonly perform?
Top Medicare-reported procedures in 2023: Pathology examination of tissue using a microscope, intermediate complexity (HCPCS 88305); Special stained specimen slides to examine tissue, each additional procedure (HCPCS 88341); Special stained specimen slides to examine tissue, initial procedure (HCPCS 88342). Source: CMS Medicare Physician & Other Practitioners file.