Doctor profile · Federal record
Dr. Justin Ahn, M.D.
Urology Physician (CMS: Urology) · San Francisco, CA
- NPI 1063755148
- Accepts Medicare
- 13 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
400 Parnassus Ave, # A610
San Francisco, CA 941432202
(415) 885-7748
Credentials & registration
- NPI registered
- March 2013 — 13 yrs on file
- Profile last updated
- January 16, 2020
- Year of graduation
- 2013 — 13 yrs since
- Specialty taxonomy
- 208800000X — NUCC code
- State license (1)
- California #A160202
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1063755148. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
371
Distinct HCPCS
8
Medicare allowed
$65,258
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 104 | 71 | $152 | |
51798 |
Ultrasound measurement of bladder capacity after voiding | 53 | 48 | $14 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 51 | 39 | $212 | |
51741 |
Electronic assessment of bladder emptying | 49 | 46 | $14 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 48 | 48 | $193 | |
52000 |
Diagnostic exam of bladder and urethra using an endoscope | 31 | 30 | $293 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 20 | 20 | $258 | |
52649 |
Complete laser fragmentation of prostate including control of bleeding using an endoscope | 15 | 15 | $910 |
In context: peer comparison
Among 17 peers in this city , average services per provider: 101. This provider delivers 3.7× the peer median.Open Payments
Industry payments received
All-time total
$772
Transactions
10
Manufacturers
4
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Boston Scientific Corporation | 6 | $278.78 | |
| PROCEPT BioRobotics Corporation | 2 | $180.00 | |
| Cook Medical LLC | 1 | $162.01 | |
| C. R. Bard, Inc. & Subsidiaries | 1 | $151.60 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
110
Patients
25
Total drug cost
$20,796
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Finasteride | Generic | 36 | 13 | $911 |
| Myrbetriq (Mirabegron) | Brand | 23 | 0 | $15,055 |
| Tamsulosin Hcl | Generic | 22 | 0 | $522 |
| Tolterodine Tartrate Er (Tolterodine Tartrate) | Brand | 15 | 0 | $3,070 |
| Estradiol | Generic | 14 | 12 | $1,239 |
Hospital affiliations
Frequently asked questions
What is Dr. Justin Ahn's medical specialty?
Dr. Justin Ahn practices Urology Physician in San Francisco, CA.
Where does Dr. Justin Ahn practice?
Dr. Justin Ahn practices at 400 Parnassus Ave, San Francisco, CA 941432202. Office phone: 4158857748.
What is Dr. Justin Ahn's NPI?
Dr. Justin Ahn's National Provider Identifier (NPI) is 1063755148, issued by NPPES.
Does Dr. Justin Ahn accept Medicare assignment?
Yes. Dr. Justin Ahn accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Justin Ahn commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Ultrasound measurement of bladder capacity after voiding (HCPCS 51798); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.