Lay-Hwa Lou, MD
Internal Medicine Physician · Fremont, CA
Lay-Hwa Lou, MD is an internal medicine physician with a practice address in Fremont, California, and NPI 1477667285, issued on Aug 18, 2006. Check the license (California A53161, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Lay-Hwa Lou
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A53161 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2333 Mowry Ave, Fremont, CA 94538
- Phone
- (510) 796-0222
- Enumerated
- Aug 18, 2006
- Record last updated
- Apr 15, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (510) 796-7760
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
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Verify Lay-Hwa Lou in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A53161Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average internal medicine physician in 2024
6,820 Medicare Part D claims for 552 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Atorvastatin Calcium805 claims
- Amlodipine Besylate689 claims
- Losartan Potassium566 claims
- Metformin Hcl321 claims
- Simvastatin195 claims
- Levothyroxine Sodium187 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.
The MIPS final score for 2023 (Medicare payment program): 56.5 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $80.49
4 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Pharmaceuticals, 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.
Lay-Hwa Lou among 17,696 internal medicine physician records in California
Lay-Hwa Lou, MD 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 updated2010 · 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).
125 internal medicine physician records list a practice address in Fremont
They are 125 of the 4,749 NPPES records with a practice address in Fremont, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Fremont → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Yih Chang, M.D.Fremont, CA 945381174506380
- John Giddens, MDFremont, CA 945381417934803
- Satyasree Konda, M.D.Fremont, CA 945381306880679
- Padmavathi Kudaravalli, MDFremont, CA 945381144221953
- Suresh Mahawar, MDFremont, CA 945381033154893
Common questions
What is Lay-Hwa Lou, MD's NPI number?
Lay-Hwa Lou, MD's National Provider Identifier (NPI) is 1477667285, issued on Aug 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Lay-Hwa Lou, MD located?
The NPPES record lists a practice address at 2333 Mowry Ave, Fremont, CA, 94538. Phone: (510) 796-0222. Providers update this record themselves, so call before visiting.
How can I verify Lay-Hwa Lou, MD's license?
NPPES lists California license number A53161, 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 Lay-Hwa Lou, MD prescribe under Medicare Part D?
In 2024, Lay-Hwa Lou, MD had 6,820 Medicare Part D claims for 552 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Lay-Hwa Lou, MD's MIPS final score?
The 2023 MIPS final score is 56.5 of 100. 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.