Doctor profile · Federal record
Dr. Karen Wai, MD
Ophthalmology Physician (CMS: Ophthalmology) · Stanford, CA
- NPI 1073017208
- Accepts Medicare
- 8 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
300 Pasteur Dr
Stanford, CA 943052200
(650) 723-4000
Credentials & registration
- NPI registered
- March 2018 — 8 yrs on file
- Profile last updated
- March 17, 2025
- Year of graduation
- 2018 — 8 yrs since
- Specialty taxonomy
- 207W00000X — NUCC code
- State license (1)
- California #A176636
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1073017208. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
123
Distinct HCPCS
3
Medicare allowed
$9,636
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 74 | 64 | $75 | |
92134 |
Imaging of retina | 35 | 33 | $29 | |
67042 |
Removal of membrane of retina with removal of internal limiting membrane of retina | 14 | 14 | $218 |
In context: peer comparison
Among 14 peers in this city , average services per provider: 205. This provider delivers 0.6× the peer median.Open Payments
Industry payments received
All-time total
$2,438
Transactions
12
Manufacturers
7
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| ABBVIE INC. | 2 | $1,357.50 | |
| Astellas Pharma US Inc | 4 | $450.62 | |
| Amgen Inc. | 2 | $217.46 | |
| Regeneron Healthcare Solutions, Inc. | 1 | $127.41 | |
| ANI Pharmaceuticals, Inc. | 1 | $127.01 | |
| Alimera Sciences, Inc. | 1 | $113.98 | |
| Astellas Pharma Global Development | 1 | $43.57 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
145
Patients
43
Total drug cost
$15,086
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Prednisolone Acetate | Generic | 47 | 29 | $1,736 |
| Erythromycin (Erythromycin Base) | Brand | 24 | 14 | $408 |
| Ketorolac Tromethamine | Generic | 21 | 0 | $422 |
| Azelastine Hcl | Generic | 16 | 0 | $1,253 |
| Restasis (Cyclosporine) | Brand | 14 | 0 | $10,579 |
| Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) | Brand | 12 | 0 | $347 |
| Olopatadine Hcl | Generic | 11 | 0 | $341 |
Hospital affiliations
Frequently asked questions
What is Dr. Karen Wai's medical specialty?
Dr. Karen Wai practices Ophthalmology Physician in Stanford, CA.
Where does Dr. Karen Wai practice?
Dr. Karen Wai practices at 300 Pasteur Dr, Stanford, CA 943052200. Office phone: 6507234000.
What is Dr. Karen Wai's NPI?
Dr. Karen Wai's National Provider Identifier (NPI) is 1073017208, issued by NPPES.
Does Dr. Karen Wai accept Medicare assignment?
Yes. Dr. Karen Wai accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Karen Wai commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Imaging of retina (HCPCS 92134); Removal of membrane of retina with removal of internal limiting membrane of retina (HCPCS 67042). Source: CMS Medicare Physician & Other Practitioners file.