Doctor profile · Federal record
Dr. David Chi, M.D.
Surgery Physician (CMS: General Surgery) · Surgical Oncology Physician · Thousand Oaks, CA
- NPI 1881746428
- Accepts Medicare
- MIPS 75.0 / 100 · 2023
- 36 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
555 Marin Street, Suite 210
Thousand Oaks, CA 913604105
(805) 497-7785
fax (805) 497-7728
Credentials & registration
- NPI registered
- January 2007 — 19 yrs on file
- Profile last updated
- July 8, 2011
- Year of graduation
- 1990 — 36 yrs since
- Specialty taxonomy
- 208600000X — NUCC code
- State license (1)
- California #G84570
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1881746428. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
590
Distinct HCPCS
7
Medicare allowed
$90,866
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 333 | 222 | $97 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 115 | 115 | $178 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 68 | 67 | $137 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 25 | 25 | $234 | |
19301 |
Partial removal of breast | 20 | 17 | $549 | |
38525 |
Biopsy or removal of deep lymph nodes of underarm | 15 | 15 | $246 | |
49505 |
Repair of groin hernia (5 years or older) | 14 | 14 | $585 |
In context: peer comparison
Among 6 peers in Thousand Oaks Surgery Physician, average services per provider: 70. This provider delivers 8.4× the peer median.Open Payments
Industry payments received
All-time total
$3,634
Transactions
8
Manufacturers
5
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Intuitive Surgical, INC. | 4 | $3,220.61 | |
| Urgo Medical North America, LLC | 1 | $171.55 | |
| Medical Device Business Services, INC. | 1 | $125.00 | |
| Baxter Healthcare | 1 | $100.00 | |
| Ethicon US, LLC | 1 | $17.04 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
76
Patients
73
Total drug cost
$636
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 76 | 73 | $636 |
Hospital affiliations
Frequently asked questions
What is Dr. David Chi's medical specialty?
Dr. David Chi practices Surgery Physician in Thousand Oaks, CA.
Where does Dr. David Chi practice?
Dr. David Chi practices at 555 Marin Street, Thousand Oaks, CA 913604105. Office phone: 8054977785.
What is Dr. David Chi's NPI?
Dr. David Chi's National Provider Identifier (NPI) is 1881746428, issued by NPPES.
Does Dr. David Chi accept Medicare assignment?
Yes. Dr. David Chi accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. David Chi commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); New patient office or other outpatient visit (HCPCS 99204); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.