Dr. Lilyana Amezcua, MD

  • Los Angeles, CA
  • Neurologist
NPI1306031240PAC ID7214023134
Medicare services, 2024
138
Medicare patients, 2024
75
Part D claims, 2024
40
Publications
22
Clinical trials
4
Practice address
1500 San Pablo Street, Los Angeles, CA 90033
Practice phone
Call (323) 442-8656
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Keck Hospital of USC

Hospital · Los Angeles, California

See all 5 affiliations

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Dr. Lilyana Amezcua is a neurologist in Los Angeles, California

Dr. Amezcua practices at Keck Hospital of USC in Los Angeles, California, part of University of Southern California.

Dr. Amezcua's NPI, 1306031240, was assigned on September 13, 2007. Dr. Amezcua graduated from Sidney Kimmel Medical College in 2002. Dr. Amezcua holds California license A86709.

NPI and contact details
Medicare PAC ID
7214023134
NPI enumeration date
September 13, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(323) 442-8656
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Female
Estimated age
50
Medical school graduation
2002

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

Dr. Lilyana Amezcua practices at Keck Hospital of USC in Los Angeles, California

Dr. Amezcua's primary practice is Keck Hospital of USC, at 1500 San Pablo Street, Los Angeles, CA 90033 in Los Angeles County. The practice phone is (323) 442-8656.

  • Keck Hospital of USC
    1500 San Pablo Street, Los Angeles, CA 90033 · Los Angeles CountyPhone(323) 442-8656

Source: Dmand AI Affiliation Data

Dr. Lilyana Amezcua is affiliated with 4 sites of care and 1 medical group

Dr. Amezcua's primary practice is Keck Hospital of USC in Los Angeles, California, part of University of Southern California. The medical group on file is USC Care Medical Group. Dmand AI also links Dr. Amezcua to 1 more group practice or clinic, 1 other site and 1 urgent care center, each named with a free account.

See all 5 affiliations for Dr. Amezcua

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Lilyana Amezcua's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Amezcua practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Keck Hospital of USCAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Lilyana Amezcua is one of 2,207 neurologists in California

Neurology is Dr. Amezcua's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Amezcua is board certified in neurology by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Amezcua's licenses on file in 2 states: California and Pennsylvania.

Specialties and state licenses

  • Neurology, CaliforniaPrimaryLicense A86709 · 2004 to 2026 · taxonomy 2084N0400X
  • Pennsylvania license2002 to 2003

Clinical focus

Dmand AI lists multiple sclerosis among the conditions Dr. Amezcua treats.

Neurologists near Dr. Amezcua

Counts of neurologists 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

Dr. Lilyana Amezcua billed Medicare for 138 services in 2024

CMS data shows 138 Medicare services from Dr. Amezcua across 3 procedure codes in 2024, for 75 Medicare patients. Medicare paid $7,387 for them.

Medicare services, 2024138
Medicare patients75
Paid by Medicare$7,387
Procedure codes3

Dr. Amezcua's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 752024: 795%
Other services
2023: 02024: 59

Where Dr. Amezcua's Medicare services took place, 2024

  • In an office5741%
  • In a facility8159%

Dr. Amezcua compared with the California median for neurologists, 2024

  • Dr. Amezcua
  • California median
Medicare services
138vs 40466% below
Medicare patients
75vs 19061% below
Part D claims
25vs 32492% below

Medians across 1,995 neurologists in California with Dmand AI profiles that report each measure.

Dr. Amezcua's most billed Medicare procedure codes, 2024

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 Dr. Amezcua

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

Dr. Lilyana Amezcua treated 75 Medicare patients in 2024, average age 63

CMS counts 75 Medicare patients who saw Dr. Amezcua in 2024. The largest group is under 65, with 36 patients. 61% of them have arthritis, and 51% have high blood pressure. 48% are also on Medicaid. Their average risk score is 1.58, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Amezcua's median patient age at 50, with 71% women.

Medicare patients, 202475
Average age63
Average risk score1.58
Also on Medicaid48%

Dr. Amezcua's Medicare patients by age, 2024

Dr. Amezcua's Medicare patients by sex, 2024

  • Women5067%
  • Men2533%

Chronic conditions among Dr. Amezcua's Medicare patients, 2024

  1. Arthritis61%
  2. High blood pressure51%
  3. High cholesterol51%
  4. Mood disorders51%
  5. Depression48%
  6. Anxiety29%
  7. Diabetes19%
  8. Osteoporosis19%

Share of Medicare patients with each condition. A patient can have several.

Dr. Amezcua's patients across all payers

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

Patient panel by age, all payers

Median age 50

Patient panel by sex, all payers

  • Women71%
  • Men27%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Lilyana Amezcua wrote 40 Medicare Part D claims in 2024

In 2024, Dr. Amezcua wrote 40 Medicare Part D claims. 30% of them were for generic drugs. CMS names the drug for 25 of them, across 2 drugs with 11 or more claims each, at $266,615 in total drug cost. In 2023, CMS named 12 claims across 1 drug.

Part D claims, 202440
Drugs named by CMS2
Total drug cost$266,615

Dr. Amezcua's Part D claims by kind of drug, 2024

  • Generic12 claims30%
  • Brand-name28 claims70%

Dr. Amezcua's most prescribed drugs by claims, 2024

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, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 122024: 25108%

Drugs named by CMS: 2 in 2024, 1 in 2023.

See all prescribing by Dr. Amezcua

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

Dr. Lilyana Amezcua offers telehealth to Medicare patients

Dr. Amezcua accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Amezcua as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Lilyana Amezcua has 22 publications on record

Dmand AI links 22 papers to Dr. Amezcua, published from 2014 to 2025. 2017 was the busiest year, with 3. The most frequent topics are Multiple Sclerosis. Dr. Amezcua's most frequent co-authors are Mitzi Joi Williams, MD, Margaret Ellen Burnett, MD and Scott Douglas Newsome, DO.

Papers22
Years published2014 to 2025

Dr. Amezcua's papers by year, 2015 to 2025

Topics Dr. Amezcua writes about most

  • Multiple Sclerosis

Dr. Amezcua's most frequent co-authors

Recent publications by Dr. Amezcua

See all 22 publications and co-authors

See who Dr. Amezcua researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Amezcua works with, so you can find a warm path to the right neurologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Lilyana Amezcua has worked on 4 clinical trials

Dmand AI links Dr. Amezcua to 4 clinical trials. Conditions studied include Multiple Sclerosis, Demyelinating Autoimmune Diseases, CNS and Multiple Sclerosis, Chronic Progressive. Open Payments lists research payments to Dr. Amezcua that name 1 trial.

Clinical trials with Dr. Amezcua by phase

  1. NonePhase 1: no trials
  2. NonePhase 2: no trials
  3. 1Phase 3: 1 trial
  4. 1Phase 4: 1 trial

Conditions in Dr. Amezcua's trials

  • Multiple Sclerosis
  • Demyelinating Autoimmune Diseases, CNS
  • Multiple Sclerosis, Chronic Progressive
  • Multiple Sclerosis, Relapsing-Remitting

Investigators on the most trials with Dr. Amezcua

Recent clinical trials with Dr. Amezcua

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

Dr. Lilyana Amezcua received $313,497 in industry payments from 2016 to 2025

CMS Open Payments shows 458 general payments to Dr. Amezcua from 16 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 60% of the total. EMD Serono, Inc. paid the most, $100,728. It also lists 29 research payments totaling $21,675 from 2018 to 2025, naming 1 clinical trial.

General payments to Dr. Amezcua by program year, 2016 to 2025

General payments to Dr. Amezcua by kind, 2016 to 2025

$313.5Kin total
  • Consulting fees$189,53460%
  • Speaker and faculty fees$66,86521%
  • Travel and lodging$27,1269%
  • Food and beverage$14,0634%
  • Other$15,9095%

Companies that paid Dr. Amezcua the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Amezcua

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

Dr. Lilyana Amezcua graduated from Sidney Kimmel Medical College

Dr. Amezcua graduated from Sidney Kimmel Medical College in 2002. Dr. Amezcua is a member of AAN.

  1. Medical schoolSidney Kimmel Medical College
  2. Board certified in neurologyAmerican Board of Psychiatry and Neurology

Source: Dmand AI Professional Profile Data

Dr. Lilyana Amezcua accepts plans from 8 insurance carriers

Dr. Amezcua is in network with 8 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.

  • Aetna
  • Elevance
  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • CMS Medicare
  • Molina

Plan types Dr. Amezcua accepts, by number of carriers

  1. Medicare8
  2. PPO6
  3. HMO3
  4. POS3
  5. EPO2

Source: Dmand AI Insurance Network Data

Sources for Dr. Lilyana Amezcua'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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
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)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network 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 Dr. Lilyana Amezcua

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

What is Dr. Lilyana Amezcua's NPI number?

Dr. Lilyana Amezcua's NPI number is 1306031240. It was assigned on September 13, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Lilyana Amezcua?

Dr. Lilyana Amezcua is a neurologist in Los Angeles, California. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).

Where does Dr. Lilyana Amezcua practice?

Dr. Amezcua practices at 1500 San Pablo Street, Los Angeles, CA 90033. Dr. Amezcua's primary practice is Keck Hospital of USC in Los Angeles, California, part of University of Southern California. Dmand AI also links Dr. Amezcua to 1 group practice or clinic, 1 other site and 1 urgent care center.

What is Dr. Lilyana Amezcua's office phone number?

The practice phone on file for Dr. Amezcua is (323) 442-8656.

What is Dr. Lilyana Amezcua's medical license number?

Dr. Amezcua holds California license A86709, one of the licenses on file in 2 states.

Which states has Dr. Lilyana Amezcua been licensed in?

Dmand AI has state licenses on file for Dr. Amezcua in California (2004 to 2026) and Pennsylvania (2002 to 2003).

Which hospitals is Dr. Lilyana Amezcua affiliated with?

Dr. Amezcua practices at Keck Hospital of USC in Los Angeles, California.

What medical group is Dr. Lilyana Amezcua part of?

Dr. Amezcua is linked to USC Care Medical Group.

Does Dr. Lilyana Amezcua accept Medicare?

Yes. CMS data shows Dr. Amezcua billed Medicare for 138 services in 2024, and Dr. Amezcua accepts Medicare assignment.

Does Dr. Lilyana Amezcua offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Amezcua as offering telehealth services.

Show 10 more questionsShow fewer questions

How many Medicare patients does Dr. Lilyana Amezcua see?

CMS counts 75 Medicare patients who saw Dr. Amezcua in 2024, with an average age of 63.

Is Dr. Lilyana Amezcua board certified?

Yes. Dr. Amezcua is board certified in neurology by the American Board of Psychiatry and Neurology.

What services does Dr. Lilyana Amezcua bill to Medicare?

In 2024, Dr. Amezcua's most billed Medicare services were medicare service (G2211), office visit, established patient (99214) and office visit, established patient (99215).

Where did Dr. Lilyana Amezcua go to medical school?

Dr. Amezcua graduated from Sidney Kimmel Medical College in 2002.

What drugs does Dr. Lilyana Amezcua prescribe most?

In 2024 Medicare Part D data, Dr. Amezcua's most prescribed drugs by claims were Gammagard Liquid and Tysabri.

Has Dr. Lilyana Amezcua received payments from drug or device companies?

CMS Open Payments shows $313,497 in general payments to Dr. Amezcua from 16 companies from 2016 to 2025. The largest total came from EMD Serono, Inc.

How long has Dr. Lilyana Amezcua been practicing?

Dr. Amezcua graduated from medical school in 2002, 24 years ago.

Does Dr. Lilyana Amezcua do research?

Dmand AI links 22 publications to Dr. Amezcua, published from 2014 to 2025. Dr. Amezcua has worked on 4 clinical trials.

Who does Dr. Lilyana Amezcua publish with?

Dr. Amezcua's most frequent co-authors are Mitzi Joi Williams, MD (4 shared papers), Margaret Ellen Burnett, MD (3 shared papers) and Scott Douglas Newsome, DO (3 shared papers).

What insurance does Dr. Lilyana Amezcua accept?

Dr. Amezcua is in network with 8 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.

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