Lillian Winn Kho Ngaw, M.D.
Internal Medicine Physician · Pasadena, CA
Lillian Winn Kho Ngaw, M.D. is an internal medicine physician with a practice address in Pasadena, California, and NPI 1154373538, issued on May 16, 2006. Check the license (California A50290, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Lillian Winn Kho Ngaw
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A50290 CA
Self-reported in NPPES; status is on the state search - Practice location
- 65 N Madison Ave Ste 709, Pasadena, CA 91101
- Phone
- (626) 792-4185
- Enumerated
- May 16, 2006
- Record last updated
- Apr 21, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (626) 792-7358
- Medicaid ID
- 00A502900 CA
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 65 N Madison Ave Ste 709
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Roy Jackson, M.D.Internal Medicine Physician1669424982
Verify Lillian Winn Kho Ngaw in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A50290Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average internal medicine physician in 2024
237 Medicare Part D claims for 43 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Amlodipine Besylate29 claims
- Atorvastatin Calcium28 claims
- Metoprolol Succinate20 claims
- Losartan Potassium17 claims
- Famotidine12 claims
- Quetiapine Fumarate11 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).
Lillian Winn Kho Ngaw among 17,696 internal medicine physician records in California
Lillian Winn Kho Ngaw, M.D. 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2021 · 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).
137 internal medicine physician records list a practice address in Pasadena
They are 137 of the 10,525 NPPES records with a practice address in Pasadena, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Pasadena → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Warren Brown, M.D.Pasadena, CA 911011083776322
- Edmond Clinton, M.D.Pasadena, CA 911011720094097
- Garland Dodoo, M.D.Pasadena, CA 911011043262421
- Leslie Dudley, MDPasadena, CA 911011255303905
- Bianca Grigorian, MDPasadena, CA 911011427053693
- Roy Jackson, M.D.Pasadena, CA 911011669424982
- Stuart Miller, MDPasadena, CA 911011467425090
- Prabhat Mukerjee, M.D.Pasadena, CA 911011306136759
Common questions
What is Lillian Winn Kho Ngaw, M.D.'s NPI number?
Lillian Winn Kho Ngaw, M.D.'s National Provider Identifier (NPI) is 1154373538, issued on May 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Lillian Winn Kho Ngaw, M.D. located?
The NPPES record lists a practice address at 65 N Madison Ave Ste 709, Pasadena, CA, 91101. Phone: (626) 792-4185. Providers update this record themselves, so call before visiting.
How can I verify Lillian Winn Kho Ngaw, M.D.'s license?
NPPES lists California license number A50290, 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 Lillian Winn Kho Ngaw, M.D. prescribe under Medicare Part D?
In 2024, Lillian Winn Kho Ngaw, M.D. had 237 Medicare Part D claims for 43 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Lillian Winn Kho Ngaw, 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.