Walter Le
- 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
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Caremore Health Medical Partners West
Cerritos, California
Find Walter Le's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
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
- 1174943013NPI Registry (opens in a new tab)
- 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 West12900 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.
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.
| Site | EHR vendor and product |
|---|---|
| Caremore Health Medical Partners West | Available with a free account |
| +1 more affiliated site | Available 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, CaliforniaPrimary
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.
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.
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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.
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.
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
- Christopher Dagher, MD2 shared trials
- Joseph L. Dellinger, MD1 shared trial
- Donny Mehrabi, MD1 shared trial
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
- 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.
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.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Walter Le's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Clinical trials and co-investigators | ClinicalTrials.gov (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand 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.
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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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