NPPES file of Aug 9, 2026

L. Lee Nelson, MD

Emergency Medicine Physician · Norwalk, CA

L. Lee Nelson, MD is an emergency medicine physician with a practice address in Norwalk, California, and NPI 1407972656, issued on Mar 21, 2007. Check the license (California A51132, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1407972656
Name
L. Lee Nelson
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
A51132 CA
Self-reported in NPPES; status is on the state search
Practice location
13100 Studebaker RD, Norwalk, CA 90650
Phone
(213) 761-7557
Enumerated
Mar 21, 2007
Record last updated
Nov 17, 2023
Medicare enrollment
Enrolled (PECOS I20050120000382); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 13100 Studebaker RD

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

  1. Melissa Ann AmantePsychiatric/Mental Health Registered Nurse1275364333
  2. Vanessa Barnum, RNRegistered Nurse1053140970
  3. Norberto Bowen, REGISTERED NURSEAdult Psychiatric/Mental Health Registered Nurse1629827019
  4. Downapha Britton, PHDRegistered Nurse1689443897
  5. Timothy Carman, M.D.Emergency Medicine Physician1669426995
  6. Jack De LaraRegistered Nurse1972347334

Verify L. Lee Nelson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A51132
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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24.4 times the Medicare Part D claims of the average emergency medicine physician in 2024

5,506 Medicare Part D claims for 671 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 53 claims were for opioids.

  1. L. Nelson5,506
  2. Specialty average226

Most prescribed

  1. Atorvastatin Calcium315 claims
  2. Metformin Hcl259 claims
  3. Amlodipine Besylate238 claims
  4. Omeprazole164 claims
  5. Gabapentin147 claims
  6. Furosemide139 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 practice group's MIPS final score for 2023 (Medicare payment program): 100 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.

  1. Qualityout of 100 · 30% of the final score100.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 2 group practices

  1. Coast Plaza Emergency Physicians Group IncNorwalk, CA
  2. Trinity Emergency PhysiciansStockton, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

L. Lee Nelson among 7,751 emergency medicine physician records in California

L. Lee Nelson, MD is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 40% of them.

  • NPI issued2007 · 40% of these records are older, 50% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated1989 · median 2011 among the 4,560 with a school on file
  • Record last updated2023 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in California

There are 7,751 emergency medicine physician records in California.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Timothy Carman, M.D.Norwalk, CA 906501669426995
  2. Thomas Gionis, M.D.Norwalk, CA 906501780638049
  3. Jung-Eun Lim, MDNorwalk, CA 906501689089195
  4. Mahmoud Nemazee, M.D.Norwalk, CA 906501801849450
  5. Brian Payne, M.D.Norwalk, CA 906501013961648
  6. Varun ShahiNorwalk, CA 906501487017497
  7. Sergio Hernandez, MDMontebello, CA 906401346404456
  8. Dale Knox, M.D.Montebello, CA 906401215998919

Common questions

What is L. Lee Nelson, MD's NPI number?

L. Lee Nelson, MD's National Provider Identifier (NPI) is 1407972656, issued on Mar 21, 2007. An NPI identifies a provider in billing; it is not a license.

Where is L. Lee Nelson, MD located?

The NPPES record lists a practice address at 13100 Studebaker RD, Norwalk, CA, 90650. Phone: (213) 761-7557. Providers update this record themselves, so call before visiting.

How can I verify L. Lee Nelson, MD's license?

NPPES lists California license number A51132, 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 L. Lee Nelson, MD prescribe under Medicare Part D?

In 2024, L. Lee Nelson, MD had 5,506 Medicare Part D claims for 671 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is L. Lee Nelson, MD's MIPS final score?

The 2023 MIPS final score is 100 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.