NPPES file of Aug 9, 2026

Constance Yamaguchi, M.D.

Ophthalmology Physician · Long Beach, CA

Constance Yamaguchi, M.D. is an ophthalmology physician with a practice address in Long Beach, California, and NPI 1932129251, issued on Jul 20, 2006. Check the license (California G27278, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1932129251
Name
Constance Yamaguchi
Credential
M.D.
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
G27278 CA
Self-reported in NPPES; status is on the state search
Practice location
4100 Long Beach Blvd, Long Beach, CA 90807
Phone
(562) 426-3925
Enumerated
Jul 20, 2006
Record last updated
Jul 6, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(562) 595-7639
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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8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →

Also registered at 4100 Long Beach Blvd

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

  1. Maurice Bell, MDInternal Medicine Physician1003838020
  2. Ben Buchholtz, M.D.Podiatrist1013953041
  3. Andrew Choy, MD.Ophthalmology Physician1871513168
  4. Teresa Rosales, MDOphthalmology Physician1851314520

Verify Constance Yamaguchi in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G27278    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 California license search

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Constance Yamaguchi among 2,899 ophthalmology physician records in California

Constance Yamaguchi, M.D. is one of 2,899 ophthalmology physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 45% newer
  • In a Medicare fileNo · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 66% of these records are
  • Record last updated2010 · 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 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in California

There are 2,899 ophthalmology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 2,899 in California → Every provider in Long Beach → Ophthalmology Physician nationwide →

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Fox Boswell, MDLong Beach, CA 908071467453910
  2. Cory Brame, M.D.Long Beach, CA 908071821093311
  3. Michael Brenner, M.D.Long Beach, CA 908071841222023
  4. Andrew Choy, MD.Long Beach, CA 908071871513168
  5. Robert Clark, M.DLong Beach, CA 908071043232325
  6. Julie Gasperini, M.D.Long Beach, CA 908071104022045
  7. Shalu Gupta, M.D.Long Beach, CA 908071518187202
  8. John McBeath, MDLong Beach, CA 908071124020888

Common questions

What is Constance Yamaguchi, M.D.'s NPI number?

Constance Yamaguchi, M.D.'s National Provider Identifier (NPI) is 1932129251, issued on Jul 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Constance Yamaguchi, M.D. located?

The NPPES record lists a practice address at 4100 Long Beach Blvd, Long Beach, CA, 90807. Phone: (562) 426-3925. Providers update this record themselves, so call before visiting.

How can I verify Constance Yamaguchi, M.D.'s license?

NPPES lists California license number G27278, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. 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. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.