NPPES file of Aug 9, 2026

Sylvia Yoo

Ophthalmology Physician · Boston, MA

Sylvia Yoo is an ophthalmology physician with a practice address in Boston, Massachusetts, and NPI 1861689770, issued on Sep 25, 2007. Check the license (Massachusetts 259906, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1861689770
Name
Sylvia Yoo
Primary taxonomy
Ophthalmology Physician 207W00000X
License numbers
259906 MA
A104988 CA
Self-reported in NPPES; status is on the state search
Practice location
800 Washington St, Boston, MA 02111
Phone
(617) 636-6769
Enumerated
Sep 25, 2007
Record last updated
Oct 15, 2014 (not updated in 12 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20140905001347); accepts Medicare assignment
Medical or professional school
University Of Alabama School Of Medicine, 2007
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 800 Washington St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jeffrey Aalberg, MD, MPHSurgery Physician1326788027
  2. Omer Abbak, PHARMDPharmacist1114500337
  3. Aya Abdelnaser, MDStudent in an Organized Health Care Education/Training Program1770425373
  4. Marie Elise Abi Antoun, MDObstetrics & Gynecology Physician1356042626
  5. Ahmad AboalfarajSurgery Physician1538517651
  6. Tala Abu Samaan, MDStudent in an Organized Health Care Education/Training Program1376386250

Verify Sylvia Yoo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 259906
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Industry payments in 2024: $24.38

1 payment: food and beverage; the largest payer was Genentech USA, 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.

  1. Sylvia Yoo$24.38
  2. Specialty average$4,535.02

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

  1. Pratt Ophthalmology Associates IncBoston, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Sylvia Yoo among 791 ophthalmology physician records in Massachusetts

Sylvia Yoo is one of 791 ophthalmology physician records with a practice address in Massachusetts. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 52% of them.

  • NPI issued2007 · 52% of these records are older, 40% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated2007 · median 2002 among the 518 with a school on file
  • Record last updated2014 · 65% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in Massachusetts

There are 791 ophthalmology physician records in Massachusetts.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Alison Callahan, MDBoston, MA 021111992016059
  2. John Chen, M.D.Boston, MA 021111366627879
  3. Catherine Choi, M.D.Boston, MA 021111235428178
  4. Mitesh Kapadia, M.D.Boston, MA 021111245212364
  5. Robert Kershner, M.D.Boston, MA 021111922115500
  6. Narae Ko, MDBoston, MA 021111649532276
  7. Kamden KopaniBoston, MA 021111902034259
  8. Michelle Liang, M.D.Boston, MA 021111437483310

Common questions

What is Sylvia Yoo's NPI number?

Sylvia Yoo's National Provider Identifier (NPI) is 1861689770, issued on Sep 25, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Sylvia Yoo located?

The NPPES record lists a practice address at 800 Washington St, Boston, MA, 02111. Phone: (617) 636-6769. Providers update this record themselves, so call before visiting.

How can I verify Sylvia Yoo's license?

NPPES lists Massachusetts license number 259906, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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.