NPPES file of Aug 9, 2026

Kenneth Lee, M.D.

Internal Medicine Physician · Norwalk, CA

Kenneth Lee, M.D. is an internal medicine physician with a practice address in Norwalk, California, and NPI 1831149475, issued on May 12, 2006. Check the license (California A53421, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1831149475
Name
Kenneth Lee
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A53421 CA
Self-reported in NPPES; status is on the state search
Practice location
12360 Firestone Blvd, Norwalk, CA 90650
Phone
(562) 867-7999
Enumerated
May 12, 2006
Record last updated
May 21, 2025
Medicaid ID
00A534210 CA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 12360 Firestone Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Denise Castor Razo, LCSWClinical Social Worker1598501934
  2. Regina Isabel De La Cruz, DMDGeneral Practice Dentistry1114549953
  3. Nancy Kelly, FNPFamily Nurse Practitioner1841661980
  4. Katie McKay, LCSWClinical Social Worker1093149064
  5. Sabita Naidu, MDFamily Medicine Physician1952747180
  6. Karen Patel, D.O.Family Medicine Physician1790164986

Verify Kenneth Lee in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A53421    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Open the California license search

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2.6 times the Medicare Part D claims of the average internal medicine physician in 2024

8,294 Medicare Part D claims for 405 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.

  1. Kenneth Lee8,294
  2. Specialty average3,176

Most prescribed

  1. Amlodipine Besylate429 claims
  2. Atorvastatin Calcium404 claims
  3. Montelukast Sodium367 claims
  4. Metoprolol Succinate319 claims
  5. Pantoprazole Sodium278 claims
  6. Rosuvastatin Calcium271 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.

Internal Medicine Physician providers in California

There are 17,696 internal medicine physician records in California.

All 17,696 in California → Every provider in Norwalk →

Other internal medicine physician records in California

  1. Jacob Aaron, MDSan Francisco, CA1407202518
  2. Alistair Aaronson, MDStanford, CA1457628760
  3. Jose Abad., MDSacramento, CA1144607219
  4. Donna Abare, MDOakland, CA1386722155
  5. Marce AbareScotts Valley, CA1457744708
  6. Samuel Abarte, M.D.Chula Vista, CA1578535498
  7. Alexander Abary, MDLong Beach, CA1104995919
  8. Luba Abascal, MDSan Francisco, CA1023180874
  9. Michael Abate, MDSacramento, CA1548248131
  10. Wali Abawi, D.O.Joshua Tree, CA1104362268

Common questions

What is Kenneth Lee, M.D.'s NPI number?

Kenneth Lee, M.D.'s National Provider Identifier (NPI) is 1831149475, issued on May 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Kenneth Lee, M.D. located?

The NPPES record lists a practice address at 12360 Firestone Blvd, Norwalk, CA, 90650. Phone: (562) 867-7999. Providers update this record themselves, so call before visiting.

How can I verify Kenneth Lee, M.D.'s license?

NPPES lists California license number A53421, 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 Kenneth Lee, M.D. prescribe under Medicare Part D?

In 2024, Kenneth Lee, M.D. had 8,294 Medicare Part D claims for 405 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.