NPPES file of Aug 9, 2026

Bao-Quyen Nguyen, DO

Obstetrics Physician · Clearlake, CA

Bao-Quyen Nguyen, DO is an obstetrics physician with a practice address in Clearlake, California, and NPI 1942866389, issued on May 10, 2019. Check the license (California 20A21061, as entered in NPPES) on the Medical Board of California; 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
1942866389
Name
Bao-Quyen Nguyen
Credential
DO
Primary taxonomy
Obstetrics Physician 207VX0000X
License numbers
20A21061 CA
DR.0077346 CO
Self-reported in NPPES; status is on the state search
Practice location
15230 Lakeshore Dr, Clearlake, CA 95422
Phone
(707) 995-4500
Enumerated
May 10, 2019
Record last updated
Jul 18, 2026
Medicare enrollment
Enrolled (PECOS I20241209002445); accepts Medicare assignment
Medical or professional school
University Of North Texas Hsc, College Of Osteopathic Med, 2019
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 15230 Lakeshore Dr

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

  1. Marisol AguilarCommunity Health Worker1699411603
  2. Veronica ArroyoCommunity Health Worker1730710617
  3. Pari Azari, M.D.Interventional Pain Medicine Physician1942442132
  4. Arthur Bikangaga, MDSurgery Physician1952319030
  5. Jerylyn Bohlender, LCSWClinical Social Worker1750782488
  6. Daniel Boucher, MDFamily Medicine Physician1164115549

Verify Bao-Quyen Nguyen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A21061
    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

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: $19.03

1 payment: food and beverage; the largest payer was Astellas Pharma US Inc. The 679 providers of this specialty with any payment received $826.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Bao-Quyen Nguyen$19.03
  2. Specialty average$826.19

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. South Bay ObgynChula Vista, CA

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

Bao-Quyen Nguyen among 174 obstetrics physician records in California

Bao-Quyen Nguyen, DO is one of 174 obstetrics physician 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 2019, is newer than 92% of them.

  • NPI issued2019 · 92% of these records are older, 5% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 52% of these records are
  • Graduated2019 · median 2002 among the 91 with a school on file
  • Record last updated2026 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VX0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics Physician providers in California

There are 174 obstetrics physician records in California.

The 8 obstetrics physician records with the nearest ZIP codes

  1. Jennifer Byer, M.D.Santa Rosa, CA 954051578838298
  2. Elizabeth Micks, MD, MPHArcata, CA 955211144405119
  3. Pierre Scales, M.D., FACOGAtwater, CA 953011679544662
  4. Patrick Snyder, MDStockton, CA 952091558327957
  5. Olivia Juhn, MEDICAL DOCTORRoseville, CA 956611306048624
  6. Antoinette Khowong, MEDICAL DOCTORRoseville, CA 956611033274238
  7. Jerry Cline, M.D.Vacaville, CA 956881336126374
  8. Miel Vallejo-Brooks, MDSan Jose, CA 951281215952056

Common questions

What is Bao-Quyen Nguyen, DO's NPI number?

Bao-Quyen Nguyen, DO's National Provider Identifier (NPI) is 1942866389, issued on May 10, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Bao-Quyen Nguyen, DO located?

The NPPES record lists a practice address at 15230 Lakeshore Dr, Clearlake, CA, 95422. Phone: (707) 995-4500. Providers update this record themselves, so call before visiting.

How can I verify Bao-Quyen Nguyen, DO's license?

NPPES lists California license number 20A21061, 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. 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.