Karrie Ka Wai Lau, D.O.
Internal Medicine Physician · Porterville, CA
Karrie Ka Wai Lau, D.O. is an internal medicine physician with a practice address in Porterville, California, and NPI 1508397936, issued on Mar 27, 2017. Check the license (California 20A17865, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Karrie Ka Wai Lau
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 20A17865 CA
Self-reported in NPPES; status is on the state search - Practice location
- 465 W Putnam Ave, Porterville, CA 93257
- Phone
- (559) 791-3880
- Enumerated
- Mar 27, 2017
- Record last updated
- Jun 19, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (559) 791-3831
- Medicare enrollment
- Enrolled (PECOS I20200707003377); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 465 W Putnam Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Karrie Ka Wai Lau in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A17865Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
30 Medicare Part D claims for 20 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
The practice group's MIPS final score for 2023 (Medicare payment program): 72.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $210.96
15 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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 one group practice
- 24 ON Physicians OF California PCEl Centro, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karrie Ka Wai Lau among 17,696 internal medicine physician records in California
Karrie Ka Wai Lau, D.O. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 81% of them.
- NPI issued2017 · 81% of these records are older, 16% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2017 · median 2004 among the 11,065 with a school on file
- Record last updated2020 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
32 internal medicine physician records list a practice address in Porterville
They are 32 of the 795 NPPES records with a practice address in Porterville, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Porterville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Iqbal Bal, M.D.Porterville, CA 932571326272071
- Vinay Buttan, MDPorterville, CA 932571699840728
- Sartaj Dhillon, MDPorterville, CA 932571053361238
- Antonio Durazo, M.D.Porterville, CA 932571427026145
- Raafat Hana, M.DPorterville, CA 932571568539997
- Hanh Hoang, M.D.Porterville, CA 932571508979865
- Rakesh Jindal, M.D.Porterville, CA 932571700893492
- Cynthia Jones, M.D.Porterville, CA 932571336334945
Common questions
What is Karrie Ka Wai Lau, D.O.'s NPI number?
Karrie Ka Wai Lau, D.O.'s National Provider Identifier (NPI) is 1508397936, issued on Mar 27, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Karrie Ka Wai Lau, D.O. located?
The NPPES record lists a practice address at 465 W Putnam Ave, Porterville, CA, 93257. Phone: (559) 791-3880. Providers update this record themselves, so call before visiting.
How can I verify Karrie Ka Wai Lau, D.O.'s license?
NPPES lists California license number 20A17865, 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 Karrie Ka Wai Lau, D.O. prescribe under Medicare Part D?
In 2024, Karrie Ka Wai Lau, D.O. had 30 Medicare Part D claims for 20 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Karrie Ka Wai Lau, D.O.'s MIPS final score?
The 2023 MIPS final score is 72.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.