Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Sylvia Yoo

Individual provider Ophthalmology Physician · NPI 1861689770

Sylvia Yoo practises Ophthalmology in Boston, Massachusetts. Graduated from University of Alabama School of Medicine in 2007, 19 years ago. Practices with Pratt Ophthalmology Associates Inc, a 53-clinician group and accepts Medicare assignment. Licensed in California and Massachusetts.

Years since qualifying
19
Trained at
University of Alabama School of Medicine
Licensed in
CA, MA
In the registry since
2007
Specialties on file
2
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Practice location Address checks out

800 Washington St Box 450
Boston, MA 02111-1552 Not confirmed with CMS for 12 years — call before visiting
Phone: (617) 636-6769
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence 259906 (MA)
Ophthalmology Physician Taxonomy 207W00000X · Licence A104988 (CA)

Record details

NPI number1861689770
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorYes
NPI enumeratedSeptember 25, 2007
Last updated in NPPESOctober 15, 2014

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOPHTHALMOLOGY
Medical schoolUNIVERSITY OF ALABAMA SCHOOL OF MEDICINE
Graduated 2007 (19 years in practice)
Group practice Pratt Ophthalmology Associates Inc — 53 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients154
Services billed 359 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Pratt Ophthalmology Associates Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 53 clinicians in the practice; 12 are shown here.

Other providers in Boston