Walter Le

  • Cerritos, CA
  • Internist
NPI1174943013PAC ID4082914148
Medicare services, 2018
85
Part D claims, 2024
21
Clinical trials
2
Industry payments
$24,987
Affiliated sites
1
Practice address
12900 Park Plaza Dr, Cerritos, CA 90703
Practice phone
Call (562) 622-2800
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Caremore Health Medical Partners West

Cerritos, California

See all 3 affiliations

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Walter Le is an internist in Cerritos, California

Walter Le practices at Caremore Health Medical Partners West in Cerritos, California.

Walter Le's NPI, 1174943013, was assigned on April 18, 2014. Walter Le graduated from University of California, San Diego School of Medicine in 2013. Walter Le holds California license A132248.

NPI and contact details
Medicare PAC ID
4082914148
NPI enumeration date
April 18, 2014
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(562) 622-2800
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
39
Medical school graduation
2013

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Walter Le practices at Caremore Health Medical Partners West in Cerritos, California

Walter Le's primary practice is Caremore Health Medical Partners West, at 12900 Park Plaza Dr, Cerritos, CA 90703 in Los Angeles County. The practice phone is (562) 622-2800.

  • Caremore Health Medical Partners West
    12900 Park Plaza Dr, Cerritos, CA 90703 · Los Angeles CountyPhone(562) 622-2800

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Walter Le is affiliated with 2 sites of care and 1 medical group

Walter Le's primary practice is Caremore Health Medical Partners West in Cerritos, California. The medical group on file is CareMore Medical Group. Dmand AI also links Walter Le to 1 more group practice or clinic, named with a free account.

See all 3 affiliations for Walter Le

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Walter Le's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Walter Le practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Caremore Health Medical Partners WestAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Walter Le is one of 16,751 internists in California

Internal medicine is Walter Le's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Walter Le is licensed in California.

Specialties and state licenses

  • Internal medicine, CaliforniaPrimaryLicense A132248 · taxonomy 207R00000X

Internists near Walter Le

Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Walter Le billed Medicare for 85 services in 2018

CMS data shows 85 Medicare services from Walter Le across 3 procedure codes in 2018. Medicare paid $6,897 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 201885
Paid by Medicare$6,897
Procedure codes3

Walter Le's Medicare services by type, 2017 to 2018

  • 2017
  • 2018
Office and hospital visits
2017: 442018: 8593%

Walter Le compared with the California median for internists, 2018

  • Walter Le
  • California median
Medicare services
85vs 36176% below
Part D claims
12vs 42197% below

Medians across 15,815 internists in California with Dmand AI profiles that report each measure.

Walter Le's most billed Medicare procedure codes, 2018

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Walter Le

Need commercial claims for Walter Le?

Medicare shows one payer. Book a meeting to get commercial claims data for Walter Le and other internists in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Walter Le's patients have a median age of 76

Across all payers, Dmand AI patient panel data puts Walter Le's median patient age at 76, with 48% women.

Walter Le's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 76

Patient panel by sex, all payers

  • Women48%
  • Men52%

Source: Dmand AI Patient Panel Data

Walter Le wrote 21 Medicare Part D claims in 2024

In 2024, Walter Le wrote 21 Medicare Part D claims for 14 patients. 95% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $1,170 in total drug cost. In 2019, CMS named 30 claims across 2 drugs.

Part D claims, 202421
Drugs named by CMS1
Total drug cost$1,170
Part D patients14

Walter Le's Part D claims by kind of drug, 2024

  • Generic20 claims95%
  • Brand-name and other1 claims5%

Walter Le's most prescribed drugs by claims, 2020

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2019 to 2020

  • 2019
  • 2020
Claims for drugs CMS names
2019: 302020: 1260%

Drugs named by CMS: 1 in 2020, 2 in 2019.

See all prescribing by Walter Le

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Walter Le takes part in Medicare

Walter Le accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Walter Le has worked on 2 clinical trials

Dmand AI links Walter Le to 2 clinical trials. 1 is still active or recruiting. Conditions studied include Non-alcoholic Fatty Liver Disease and Fatty Liver. Regeneron Pharmaceuticals sponsors the most, 2. Open Payments lists research payments to Walter Le that name 2 trials.

Conditions in Walter Le's trials

  • Non-alcoholic Fatty Liver Disease
  • Fatty Liver

Investigators on the most trials with Walter Le

Recent clinical trials with Walter Le

Sources: Open Payments (CMS), 2025 data, released July 7, 2026; ClinicalTrials.gov (National Library of Medicine); and Dmand AI Research Linkage

Walter Le received $24,987 in industry payments from 2016 to 2025

CMS Open Payments shows 64 general payments to Walter Le from 11 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 95% of the total. AstraZeneca Pharmaceuticals LP paid the most, $21,162. It also lists 8 research payments totaling $6,344 from 2019 to 2024, naming 2 clinical trials.

General payments to Walter Le by program year, 2016 to 2025

General payments to Walter Le by kind, 2016 to 2025

$25Kin total
  • Consulting fees$23,65095%
  • Food and beverage$1,3385%

Companies that paid Walter Le the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Walter Le

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Walter Le graduated from University of California, San Diego School of Medicine

Walter Le graduated from University of California, San Diego School of Medicine in 2013.

  1. Medical schoolUniversity of California, San Diego School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Walter Le's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Clinical trials and co-investigatorsClinicalTrials.gov (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Walter Le

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Walter Le's NPI number?

Walter Le's NPI number is 1174943013. It was assigned on April 18, 2014, and it is active in the NPI Registry.

What does Walter Le specialize in?

Walter Le is an internist in Cerritos, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Walter Le practice?

Walter Le practices at 12900 Park Plaza Dr, Cerritos, CA 90703. Walter Le's primary practice is Caremore Health Medical Partners West in Cerritos, California. Dmand AI also links Walter Le to 1 group practice or clinic.

What is Walter Le's office phone number?

The practice phone on file for Walter Le is (562) 622-2800.

What is Walter Le's medical license number?

Walter Le holds California license A132248.

What medical group is Walter Le part of?

Walter Le is linked to CareMore Medical Group.

Does Walter Le accept Medicare?

Yes. CMS data shows Walter Le billed Medicare for 85 services in 2018, and Walter Le accepts Medicare assignment.

What services does Walter Le bill to Medicare?

In 2018, Walter Le's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99223) and hospital inpatient care (99239).

Where did Walter Le go to medical school?

Walter Le graduated from University of California, San Diego School of Medicine in 2013.

What drugs does Walter Le prescribe most?

In 2020 Medicare Part D data, Walter Le's most prescribed drugs by claims were Vancomycin HCl.

Show 3 more questionsShow fewer questions

Has Walter Le received payments from drug or device companies?

CMS Open Payments shows $24,987 in general payments to Walter Le from 11 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.

How long has Walter Le been practicing?

Walter Le graduated from medical school in 2013, 13 years ago.

Does Walter Le do research?

Walter Le has worked on 2 clinical trials.

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