NPPES file of Aug 9, 2026

Nadine Stacy-Marie Lyseight, M.D.

Obstetrics & Gynecology Physician · Rialto, CA

Nadine Stacy-Marie Lyseight, M.D. is an obstetrics & gynecology physician with a practice address in Rialto, California, and NPI 1790785046, issued on Jul 28, 2005. Check the license (California A79351, 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
1790785046
Name
Nadine Stacy-Marie Lyseight
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
A79351 CA
Self-reported in NPPES; status is on the state search
Practice location
1850 N Riverside Ave Ste 180, Rialto, CA 92376
Phone
(909) 787-1987
Enumerated
Jul 28, 2005
Record last updated
Aug 19, 2022
Fax
(877) 553-0133
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 1850 N Riverside Ave Ste 180

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

  1. Jeanine Gloria, AMFT, APCCMarriage & Family Therapist1063115814
  2. Daniel JuarezMarriage & Family Therapist1659145191
  3. Edwin McBride, MDIVPastoral Counselor1326894932
  4. Katherine Vazquez, PA-CPhysician Assistant1023654530

Verify Nadine Stacy-Marie Lyseight in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A79351
    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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85% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

25 Medicare Part D claims for 15 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Nadine Lyseight25
  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.

Industry payments in 2024: $215.88

10 payments; by number, the most common kind was food and beverage; the largest payer was Dexcom, Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Nadine Lyseight$215.88
  2. Specialty average$1,030.61

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

Nadine Stacy-Marie Lyseight among 5,088 obstetrics & gynecology physician records in California

Nadine Stacy-Marie Lyseight, M.D. 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 95% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileNo · 53% of these records are
  • Record last updated2022 · 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.

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

  1. Lorenzo Apodaca, M.D.Redlands, CA 923731952358350
  2. Marta Cheatham-Lott, MDRedlands, CA 923731992706451
  3. Victoria Flores, M.D.Redlands, CA 923731104270321
  4. Samir Hage, D.O.Redlands, CA 923731821059924
  5. Stephen Hordynski, MDRedlands, CA 923731659311876
  6. Shellee Lazar, M.D.Redlands, CA 923731093806382
  7. Han LiRedlands, CA 923731164878633
  8. Kenneth Park, DORedlands, CA 923731457643215

Common questions

What is Nadine Stacy-Marie Lyseight, M.D.'s NPI number?

Nadine Stacy-Marie Lyseight, M.D.'s National Provider Identifier (NPI) is 1790785046, issued on Jul 28, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Nadine Stacy-Marie Lyseight, M.D. located?

The NPPES record lists a practice address at 1850 N Riverside Ave Ste 180, Rialto, CA, 92376. Phone: (909) 787-1987. Providers update this record themselves, so call before visiting.

How can I verify Nadine Stacy-Marie Lyseight, M.D.'s license?

NPPES lists California license number A79351, 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 Nadine Stacy-Marie Lyseight, M.D. prescribe under Medicare Part D?

In 2024, Nadine Stacy-Marie Lyseight, M.D. had 25 Medicare Part D claims for 15 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.

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.