Wei Wah Kwok, M.D.
Pain Medicine (Anesthesiology) Physician · Fullerton, CA
Wei Wah Kwok, M.D. is a pain medicine (anesthesiology) physician with a practice address in Fullerton, California, and NPI 1861430902, issued on Jun 2, 2006. Check the license (California A90368, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Wei Wah Kwok
- Credential
- M.D.
- Primary taxonomy
- Pain Medicine (Anesthesiology) Physician 207LP2900X
- License number
- A90368 CA
Self-reported in NPPES; status is on the state search - Practice location
- 150 Laguna RD Ste A, Fullerton, CA 92835
- Phone
- (714) 525-8822
- Enumerated
- Jun 2, 2006
- Record last updated
- Dec 22, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (714) 525-5193
- Medicare enrollment
- Enrolled (PECOS I20060621000203); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 2001
- Entity
- Type 1 · individual
8 nearest pain medicine (anesthesiology) physician records → All 536 in California → Look up another NPI →
Also registered at 150 Laguna RD Ste A
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stephanie Armas, FNPFamily Nurse Practitioner1174147581
- Tammy Chen, NURSE PRACTITIONERAdult Health Nurse Practitioner1255792875
- Joseph Ho, M.D.Interventional Pain Medicine Physician1285856609
- Thomas Phan, MDInterventional Pain Medicine Physician1972999753
- Soo Bin SonAcupuncturist1639825045
Verify Wei Wah Kwok in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A90368Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
24% more Medicare Part D claims than the average pain medicine (anesthesiology) physician in 2024
2,162 Medicare Part D claims for 231 beneficiaries, against an average of 1,750 among the 2,982 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims. 1,457 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen544 claims
- Gabapentin217 claims
- Oxycodone-Acetaminophen207 claims
- Morphine Sulfate Er111 claims
- Fentanyl105 claims
- Oxycodone Hcl87 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $537.61
25 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 2,789 providers of this specialty with any payment received $3,225.41 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.
Bills Medicare through 3 group practices
- Caduceus Physicians Medical GroupYorba Linda, CA
- Premier Pain ConsultantsFullerton, CA
- Veritas Anesthesia IncFullerton, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Wei Wah Kwok among 536 pain medicine (anesthesiology) physician records in California
Wei Wah Kwok, M.D. is one of 536 pain medicine (anesthesiology) physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 57% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2001 · median 2004 among the 367 with a school on file
- Record last updated2020 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207LP2900X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pain Medicine (Anesthesiology) Physician providers in California
There are 536 pain medicine (anesthesiology) physician records in California.
All 536 in California → Every provider in Fullerton → Pain Medicine (Anesthesiology) Physician nationwide →
The 8 pain medicine (anesthesiology) physician records with the nearest ZIP codes
- Jerry Fralick, M.D.Fullerton, CA 928351063408425
- Carl Hess, MDFullerton, CA 928351154471118
- William Ko, MDFullerton, CA 928351629011762
- Shveta Jain, M.D.Fullerton, CA 928311598024226
- Paul Le, MDAnaheim, CA 928071730251075
- Joon Sung, MDAnaheim, CA 928071891862611
- William Wang, MDAnaheim, CA 928071528130853
- Dennis Kuo, M.DAnaheim, CA 928051295140739
Common questions
What is Wei Wah Kwok, M.D.'s NPI number?
Wei Wah Kwok, M.D.'s National Provider Identifier (NPI) is 1861430902, issued on Jun 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Wei Wah Kwok, M.D. located?
The NPPES record lists a practice address at 150 Laguna RD Ste A, Fullerton, CA, 92835. Phone: (714) 525-8822. Providers update this record themselves, so call before visiting.
How can I verify Wei Wah Kwok, M.D.'s license?
NPPES lists California license number A90368, 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 Wei Wah Kwok, M.D. prescribe under Medicare Part D?
In 2024, Wei Wah Kwok, M.D. had 2,162 Medicare Part D claims for 231 beneficiaries; the average among pain medicine (anesthesiology) physician prescribers was 1,750. Part D covers Medicare prescriptions only.
What is Wei Wah Kwok, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.