Doctor profile · Federal record
Dr. Karissa Do, O.D.
Optometrist (CMS: Optometry) · Fountain Valley, CA
- NPI 1598820433
- Accepts Medicare
- 27 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
18430 Brookhurst St Ste 100
Fountain Valley, CA 927086726
(714) 968-9121
fax (714) 962-6521
Credentials & registration
- NPI registered
- December 2006 — 20 yrs on file
- Profile last updated
- December 14, 2018
- Year of graduation
- 1999 — 27 yrs since
- Specialty taxonomy
- 152W00000X — NUCC code
- State license (1)
- California #11125T
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1598820433. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
186
Distinct HCPCS
3
Medicare allowed
$18,278
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 97 | 58 | $139 | |
92133 |
Imaging of optic nerve | 45 | 31 | $38 | |
92083 |
Exam of visual field with extended testing | 44 | 30 | $71 |
In context: peer comparison
Among 6 peers in this city , average services per provider: 41. This provider delivers 4.5× the peer median.Open Payments
Industry payments received
All-time total
$336
Transactions
8
Manufacturers
6
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Bausch & Lomb Americas Inc. | 1 | $123.86 | |
| Astellas Pharma US Inc | 1 | $64.18 | |
| Johnson & Johnson Vision Care, Inc. | 2 | $55.79 | |
| CooperVision Inc. | 2 | $49.46 | |
| SUN PHARMACEUTICAL INDUSTRIES INC. | 1 | $29.30 | |
| Alcon Vision LLC | 1 | $13.65 |
By nature of payment
Frequently asked questions
What is Dr. Karissa Do's medical specialty?
Dr. Karissa Do practices Optometrist in Fountain Valley, CA.
Where does Dr. Karissa Do practice?
Dr. Karissa Do practices at 18430 Brookhurst St Ste 100, Fountain Valley, CA 927086726. Office phone: 7149689121.
What is Dr. Karissa Do's NPI?
Dr. Karissa Do's National Provider Identifier (NPI) is 1598820433, issued by NPPES.
Does Dr. Karissa Do accept Medicare assignment?
Yes. Dr. Karissa Do accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Karissa Do commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Imaging of optic nerve (HCPCS 92133); Exam of visual field with extended testing (HCPCS 92083). Source: CMS Medicare Physician & Other Practitioners file.