SEAN KU WANG MD
NPI 1699301606
Ophthalmology - Retina Specialist in Stanford, CA
About Sean Ku Wang Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SEAN KU WANG MD (NPI 1699301606) is an individual retina specialist in Stanford, California, licensed in California (A191643) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, is affiliated with Massachusetts Eye And Ear Infirmary -, and maintains a secondary practice location in Boston.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Sean Ku Wang Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Sean Wang reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Stanford, CA 94305
- Reassigned Medicare billing, California enrollment
- 4,258 clinicians in this Medicare group
Palo Alto, CA 94304
- Reassigned Medicare billing, California enrollment
- 3,617 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 478 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Massachusetts Eye And Ear Infirmary -
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94305 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
STANFORD, CA 94305
STANFORD, CA 94305
STANFORD, CA 94305
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Sean Wang's NPI number?
The NPI number for Sean Wang is 1699301606. It was assigned to this individual provider in the NPPES registry on March 21, 2020.
Where is Sean Wang located?
Sean Wang practices at 300 Pasteur Dr, Stanford, CA 94305. The listed phone number is (650) 723-4000.
What is Sean Wang's specialty?
The primary specialty registered for this NPI is Ophthalmology, specializing in Retina Specialist, with taxonomy code 207WX0107X.
Is Sean Wang enrolled in Medicare?
Yes. Sean Wang is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Sean Wang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sean Wang reassigns Medicare benefits to 3 organizations: Stanford Health Care (Stanford, CA), Lpch Medical Group Div Of Lucile (Palo Alto, CA) and Massachusetts Eye And Ear Associates, Inc. (Boston, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Sean Wang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Sean Wang affiliated with any hospitals?
According to CMS data, Sean Wang is affiliated with Massachusetts Eye And Ear Infirmary -.
When was this NPI record last updated?
The NPPES record for Sean Wang was last updated on September 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 48 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Sean Ku Wang, MD · NPI 1699301606
Retina Specialist physician in Stanford, California. Individual provider, active in the CMS NPPES registry since March 21, 2020.
## Identity
- **NPI:** 1699301606 (Entity type: Individual)
- **Enumerated:** March 21, 2020
- **Primary specialty:** Ophthalmology - Retina Specialist · taxonomy 207WX0107X
- **State license:** A191643 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 PASTEUR DR, Stanford, CA 94305-2200
- **Phone:** (650) 723-4000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Stanford Health Care (NPI 1437292927, Stanford, CA); Lpch Medical Group Div Of Lucile (NPI 1417907940, Palo Alto, CA); Massachusetts Eye And Ear Associates, Inc. (NPI 1932574332, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Harvard Medical School, class of 2020
## Record status
- **NPPES last updated:** September 2, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1699301606) · Data from the CMS NPPES public registry.