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Dr. Gary Yau , MD

Ophthalmology β€’ Boston, MA

Active NPI 1154774792 Individual Practitioner Male Practitioner
Practice location in NPPES

1 Joslin Pl, Beetham Eye Institute, Joslin Diabetes Center
Boston, MA 022155306

Call 6173092586 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

1 Joslin Pl
Beetham Eye Institute, Joslin Diabetes Center

Boston, MA 022155306

Telephone 6173092586
Fax 6173092545
Organization at the Same NPPES Address or Phone
Joslin Clinic Inc Facility NPI 1528003621

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Industry payments (Open Payments)

No Open Payments records are listed for this clinician for 2019–2025.

Guide: How to read an Open Payments record

NPI first issued

2016

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Medicare assignment not listed

CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, β€œDoes your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Compared with the same specialty in Boston and Massachusetts

327 active clinicians are listed under Ophthalmology with a practice address in Boston, MA (792 in Massachusetts).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Boston

5.2% of these 327 clinicians have the CMS telehealth indicator.

56.6% of these 327 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo Β· Report an error.

Specialties & License Numbers Reported to NPPES

Ophthalmology Primary Specialty

NUCC Taxonomy Code: 207W00000X

License # reported to NPPES MA 265945

An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Massachusetts Board of Registration in Medicine.
Look Up on State Board Site

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

2 listed
Dr. Mohamed Elmasry , MD, PhD

Ophthalmology - Retina Specialist

NPI 1982126769

Doctor of Medicine (M.D.), Doctor of Philosophy (Ph.D.)

NPI 1376287318

Doctor of Medicine (M.D.)

Career & Practice History

NPI enumerated July 19, 2016.

No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.

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NPI Administrative Meta

NPI Number: 1154774792
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: July 19, 2016
Last Update: August 23, 2016
Sole Proprietor: Yes

Other Ophthalmology Specialists in Boston

All Ophthalmology Specialists in Boston

Mailing Address

1 Joslin Pl, Beetham Eye Institute, Joslin Diabetes Center

Boston, MA 022155306

Phone: 6173092586

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.