NPPES file of Aug 9, 2026

To-Quyen H. To, O.D.

Optometrist · Morgan Hill, CA

To-Quyen H. To, O.D. is an optometrist with a practice address in Morgan Hill, California, and NPI 1861539199, issued on Jan 30, 2007. Check the license (California 10984T, as entered in NPPES) with the California board that licenses this profession; 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
1861539199
Name
To-Quyen H. To
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
10984T CA
Self-reported in NPPES; status is on the state search
Practice location
16120 Monterey St, Morgan Hill, CA 95037
Phone
(408) 779-3793
Enumerated
Jan 30, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(408) 778-3550
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 16120 Monterey St

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

  1. David Tran, DDSGeneral Practice Dentistry1205033149

Verify To-Quyen H. To in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 10984T
    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
Find the California license search

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Industry payments in 2024: $23.51

1 payment: food and beverage; the largest payer was Alcon Vision LLC. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. To-Quyen To$23.51
  2. Specialty average$769.99

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

To-Quyen H. To among 8,308 optometrist records in California

To-Quyen H. To, O.D. is one of 8,308 optometrist records with a practice address in California. 67% 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 34% of them.

  • NPI issued2007 · 34% of these records are older, 46% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 43% of these records are
  • Record last updated2007 · 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 152W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

8 optometrist records list a practice address in Morgan Hill

They are 8 of the 626 NPPES records with a practice address in Morgan Hill, and 8,308 optometrist records in California.

The 8 optometrist records with the nearest ZIP codes

  1. Carolyn Baker Connor, ODMorgan Hill, CA 950371992854012
  2. Randall Chung, O.D.Morgan Hill, CA 950371831287671
  3. Mark Maher, ODMorgan Hill, CA 950371811049810
  4. Katherine Makayed, ODMorgan Hill, CA 950371245741537
  5. Thanh-Son Nguyen, ODMorgan Hill, CA 950371588069371
  6. Roshni ShahMorgan Hill, CA 950371073999090
  7. Tina Truong, O.D.Morgan Hill, CA 950371750720280
  8. Michelle Chan, ODMilpitas, CA 950351124697818

Common questions

What is To-Quyen H. To, O.D.'s NPI number?

To-Quyen H. To, O.D.'s National Provider Identifier (NPI) is 1861539199, issued on Jan 30, 2007. An NPI identifies a provider in billing; it is not a license.

Where is To-Quyen H. To, O.D. located?

The NPPES record lists a practice address at 16120 Monterey St, Morgan Hill, CA, 95037. Phone: (408) 779-3793. Providers update this record themselves, so call before visiting.

How can I verify To-Quyen H. To, O.D.'s license?

NPPES lists California license number 10984T, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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.