Doctor profile · Federal record
Dr. Grace Zhang, MD
Ophthalmology Physician (CMS: Ophthalmology) · Santa Rosa, CA
- NPI 1679501670
- Accepts Medicare
- 24 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1140 Sonoma Ave Ste 2A
Santa Rosa, CA 954054817
(312) 320-0090
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- March 9, 2023
- Year of graduation
- 2002 — 24 yrs since
- Specialty taxonomy
- 207W00000X — NUCC code
- State license (1)
- California #C154185
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1679501670. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
892
Distinct HCPCS
10
Medicare allowed
$146,648
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
92136 |
Measurement of corneal curvature and depth of eye | 211 | 159 | $31 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 182 | 164 | $66 | |
66984 |
Removal of cataract with insertion of prosthetic lens | 167 | 126 | $552 | |
92134 |
Imaging of retina | 147 | 142 | $25 | |
92004 |
New patient complete exam of visual system | 77 | 77 | $96 | |
92014 |
Established patient complete exam of visual system | 26 | 26 | $77 | |
66982 |
Complex removal of cataract with insertion of prosthetic lens | 25 | 21 | $755 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 22 | 22 | $35 | |
92012 |
Established patient problem focused exam of visual system | 18 | 16 | $51 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 17 | 17 | $133 |
In context: peer comparison
Among 5 peers in this city , average services per provider: 115. This provider delivers 7.8× the peer median.Open Payments
Industry payments received
All-time total
$1,601
Transactions
22
Manufacturers
4
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Bausch & Lomb Americas Inc. | 13 | $1,397.87 | |
| Alcon Vision LLC | 7 | $162.35 | |
| Optos, Inc. | 1 | $26.62 | |
| Sight Sciences, Inc. | 1 | $13.75 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
833
Patients
558
Total drug cost
$34,399
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Prednisolone Acetate | Generic | 257 | 178 | $13,161 |
| Ciprofloxacin Hcl | Generic | 236 | 174 | $3,478 |
| Diclofenac Sodium | Generic | 191 | 129 | $2,492 |
| Ketorolac Tromethamine | Generic | 72 | 52 | $1,987 |
| Latanoprost | Generic | 60 | 25 | $1,965 |
| Restasis (Cyclosporine) | Brand | 17 | 0 | $11,316 |
Frequently asked questions
What is Dr. Grace Zhang's medical specialty?
Dr. Grace Zhang practices Ophthalmology Physician in Santa Rosa, CA.
Where does Dr. Grace Zhang practice?
Dr. Grace Zhang practices at 1140 Sonoma Ave Ste 2A, Santa Rosa, CA 954054817. Office phone: 3123200090.
What is Dr. Grace Zhang's NPI?
Dr. Grace Zhang's National Provider Identifier (NPI) is 1679501670, issued by NPPES.
Does Dr. Grace Zhang accept Medicare assignment?
Yes. Dr. Grace Zhang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Grace Zhang commonly perform?
Top Medicare-reported procedures in 2023: Measurement of corneal curvature and depth of eye (HCPCS 92136); Established patient office or other outpatient visit (HCPCS 99213); Removal of cataract with insertion of prosthetic lens (HCPCS 66984). Source: CMS Medicare Physician & Other Practitioners file.