Kay May Madeleine Kwok, MD
Obstetrics & Gynecology Physician · Torrance, CA
Kay May Madeleine Kwok, MD is an obstetrics & gynecology physician with a practice address in Torrance, California, and NPI 1588856710, issued on Aug 12, 2007. Check the license (California A93475, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kay May Madeleine Kwok
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A93475 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3400 Lomita Blvd, Torrance, CA 90505
- Phone
- (310) 530-5965
- Enumerated
- Aug 12, 2007
- Record last updated
- May 19, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (310) 530-5008
- Medicare enrollment
- Enrolled (PECOS I20080310000113); accepts Medicare assignment
- Medical or professional school
- George Washington University School Of Medicine, 2003
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 3400 Lomita Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- William Averill, M.D.Cardiovascular Disease Physician1225013550
- Alexandra Bujor, M.D.Obstetrics & Gynecology Physician1316955206
- Shirley ChengDentist1043427131
- Bernadette Dunlap, DDSDentist1245443290
- Elaine Gutierrez, M.D.Pediatrics Physician1083624076
Verify Kay May Madeleine Kwok in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A93475Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
45% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
91 Medicare Part D claims for 41 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Estradiol24 claims
- Yuvafem21 claims
- Valacyclovir17 claims
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: $22,436.88
13 payments; by number, the most common kind was food and beverage; the largest payer was Human Regenerative Technologies. 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Kay May Madeleine Kwok among 5,088 obstetrics & gynecology physician records in California
Kay May Madeleine Kwok, MD 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 2007, is newer than 48% of them.
- NPI issued2007 · 48% of these records are older, 38% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2003 · median 2004 among the 2,700 with a school on file
- Record last updated2016 · 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 Torrance → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Latrice Allen, M.D.Torrance, CA 905051639118359
- Jody Aronson, M.D.Torrance, CA 905051205924180
- Sharda Bhasin, M.D.Torrance, CA 905051871517763
- Alexandra Bujor, M.D.Torrance, CA 905051316955206
- Albert Chen, M.D.Torrance, CA 905051528079076
- Kay Elledge, MDTorrance, CA 905051023055928
- Karen Filkins, M.D.Torrance, CA 905051659322469
- Kenneth Holliman, M.D.Torrance, CA 905051861445645
Common questions
What is Kay May Madeleine Kwok, MD's NPI number?
Kay May Madeleine Kwok, MD's National Provider Identifier (NPI) is 1588856710, issued on Aug 12, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Kay May Madeleine Kwok, MD located?
The NPPES record lists a practice address at 3400 Lomita Blvd, Torrance, CA, 90505. Phone: (310) 530-5965. Providers update this record themselves, so call before visiting.
How can I verify Kay May Madeleine Kwok, MD's license?
NPPES lists California license number A93475, 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 Kay May Madeleine Kwok, MD prescribe under Medicare Part D?
In 2024, Kay May Madeleine Kwok, MD had 91 Medicare Part D claims for 41 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.