Doctor profile · Federal record
Dr. CHI-Chen Mao, MD
Neurology Physician (CMS: Neurology) · South San Francisco, CA
- NPI 1467530055
- Accepts Medicare
- MIPS 90.2 / 100 · 2023
- 47 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1200 El Camino Real
South San Francisco, CA 940803208
(650) 742-2000 - Mailing address
-
1800 Harrison St Fl 7
Oakland, CA 946123466
Credentials & registration
- NPI registered
- November 2006 — 20 yrs on file
- Profile last updated
- December 13, 2021
- Year of graduation
- 1979 — 47 yrs since
- Specialty taxonomy
- 2084N0400X — NUCC code
- State license (1)
- California #A44396
- Medicaid
- CA #00A443960
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1467530055. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
18
Distinct HCPCS
1
Medicare allowed
$4,592
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99205 |
New patient office or other outpatient visit, 60-74 minutes | 18 | 18 | $255 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 48. This provider delivers 0.4× the peer median.Open Payments
Industry payments received
All-time total
$18
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Amgen Inc. | 1 | $17.69 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
361
Patients
88
Total drug cost
$30,220
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Carbidopa-Levodopa (Carbidopa/Levodopa) | Brand | 108 | 45 | $10,807 |
| Levetiracetam | Generic | 40 | 17 | $2,446 |
| Gabapentin | Generic | 34 | 14 | $1,405 |
| Phenytoin Sodium Extended | Generic | 31 | 12 | $2,021 |
| Ropinirole Hcl | Generic | 23 | 0 | $355 |
| Carbidopa-Levodopa Er (Carbidopa/Levodopa) | Brand | 21 | 0 | $1,052 |
| Ajovy Autoinjector (Fremanezumab-Vfrm) | Brand | 15 | 0 | $6,372 |
| Amantadine (Amantadine Hcl) | Brand | 14 | 0 | $666 |
| Carbamazepine | Generic | 14 | 0 | $1,151 |
| Sumatriptan Succinate | Generic | 13 | 0 | $1,508 |
Hospital affiliations
Frequently asked questions
What is Dr. CHI-Chen Mao's medical specialty?
Dr. CHI-Chen Mao practices Neurology Physician in South San Francisco, CA.
Where does Dr. CHI-Chen Mao practice?
Dr. CHI-Chen Mao practices at 1200 El Camino Real, South San Francisco, CA 940803208. Office phone: 6507422000.
What is Dr. CHI-Chen Mao's NPI?
Dr. CHI-Chen Mao's National Provider Identifier (NPI) is 1467530055, issued by NPPES.
Does Dr. CHI-Chen Mao accept Medicare assignment?
Yes. Dr. CHI-Chen Mao accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. CHI-Chen Mao commonly perform?
Top Medicare-reported procedures in 2023: New patient office or other outpatient visit (HCPCS 99205). Source: CMS Medicare Physician & Other Practitioners file.