NPPES file of Aug 9, 2026

Helena May Nguyen

Obstetrics & Gynecology Physician · Orange, CA

Helena May Nguyen is an obstetrics & gynecology physician with a practice address in Orange, California, and NPI 1124760079, issued on Apr 11, 2022. Check the license (California A190592, 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
1124760079
Name
Helena May Nguyen
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
A190592 CA
Self-reported in NPPES; status is on the state search
Practice location
2501 E Chapman Ave Ste 400, Orange, CA 92869
Phone
(714) 835-8715
Enumerated
Apr 11, 2022
Record last updated
Jul 21, 2026
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 obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →

Also registered at 2501 E Chapman Ave Ste 400

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

  1. Shruti Dasgupta, MDObstetrics & Gynecology Physician1023647138
  2. Shannon Kiss, DOObstetrics & Gynecology Physician1831830629

Verify Helena May 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 A190592    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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84% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

26 Medicare Part D claims for 12 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Helena Nguyen26
  2. Specialty average165

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Helena May Nguyen among 5,088 obstetrics & gynecology physician records in California

Helena May Nguyen is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 98% of them.

  • NPI issued2022 · 98% of these records are older, under 1% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileNo · 53% of these records are
  • Record last updated2026 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in California

There are 5,088 obstetrics & gynecology physician records in California.

All 5,088 in California → Every provider in Orange → Obstetrics & Gynecology Physician nationwide →

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Shruti Dasgupta, MDOrange, CA 928691023647138
  2. Daniel Dobalian, M.D.Orange, CA 928691578743894
  3. Jesus Hernandez, M.D.Orange, CA 928691609865716
  4. Karen Hsu, MDOrange, CA 928691659733459
  5. Shannon Kiss, DOOrange, CA 928691831830629
  6. Gelareh Nikpour-Heravi, M.D.Orange, CA 928691013302876
  7. Danielle Ogez, M.D.Orange, CA 928691407201049
  8. Alfred Tay, M.D.Orange, CA 928691629202189

Common questions

What is Helena May Nguyen's NPI number?

Helena May Nguyen's National Provider Identifier (NPI) is 1124760079, issued on Apr 11, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Helena May Nguyen located?

The NPPES record lists a practice address at 2501 E Chapman Ave Ste 400, Orange, CA, 92869. Phone: (714) 835-8715. Providers update this record themselves, so call before visiting.

How can I verify Helena May Nguyen's license?

NPPES lists California license number A190592, 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.

How much does Helena May Nguyen prescribe under Medicare Part D?

In 2024, Helena May Nguyen had 26 Medicare Part D claims for 12 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions 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.

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.