Grace Shuang Zhang, MD
Ophthalmology Physician · Santa Rosa, CA
Grace Shuang Zhang, MD is an ophthalmology physician with a practice address in Santa Rosa, California, and NPI 1679501670, issued on Jun 29, 2006. Check the license (California C154185, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Grace Shuang Zhang
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- C154185 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1140 Sonoma Ave Ste 2A, Santa Rosa, CA 95405
- Phone
- (312) 320-0090
- Enumerated
- Jun 29, 2006
- Record last updated
- Mar 9, 2023
- Medicare enrollment
- Enrolled (PECOS I20180221002197); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Verify Grace Shuang Zhang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C154185Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average ophthalmology physician in 2024
473 Medicare Part D claims for 161 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 48% of claims.
Most prescribed
- Ketorolac Tromethamine141 claims
- Prednisolone Acetate125 claims
- Ciprofloxacin Hcl100 claims
- Latanoprost38 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,600.59
22 payments; by number, the most common kind was food and beverage; the largest payer was Bausch & Lomb Americas Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Ukiah Adventist HospitalUkiah, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Grace Shuang Zhang among 2,899 ophthalmology physician records in California
Grace Shuang Zhang, MD is one of 2,899 ophthalmology physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 45% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2002 · median 2001 among the 1,907 with a school on file
- Record last updated2023 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in California
There are 2,899 ophthalmology physician records in California.
All 2,899 in California → Every provider in Santa Rosa → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Edward Feldman, M.D.Santa Rosa, CA 954051699770396
- Valerie Garden, M.D.Santa Rosa, CA 954051487785101
- James Hunt, M.D.Santa Rosa, CA 954051326010620
- Brien Seeley, M.D.Santa Rosa, CA 954051972566842
- Robert Anderson, M.D.Santa Rosa, CA 954041801874144
- David Lightfoot, M.D.Santa Rosa, CA 954041649260696
- Dan Lightfoot, M.D.Santa Rosa, CA 954041023008075
- Jesse Rathbun, M.D.Santa Rosa, CA 954041114492162
Common questions
What is Grace Shuang Zhang, MD's NPI number?
Grace Shuang Zhang, MD's National Provider Identifier (NPI) is 1679501670, issued on Jun 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Grace Shuang Zhang, MD located?
The NPPES record lists a practice address at 1140 Sonoma Ave Ste 2A, Santa Rosa, CA, 95405. Phone: (312) 320-0090. Providers update this record themselves, so call before visiting.
How can I verify Grace Shuang Zhang, MD's license?
NPPES lists California license number C154185, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Grace Shuang Zhang, MD prescribe under Medicare Part D?
In 2024, Grace Shuang Zhang, MD had 473 Medicare Part D claims for 161 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.