William Carroll

  • Los Angeles, CA
  • Internist
NPI1295154102PAC ID2163793399
Medicare services, 2024
6,216
Medicare patients, 2024
502
Part D claims, 2024
3,780
Hospital affiliations
2
Medical groups
2
Practice address
200 Medical Plz, Los Angeles, CA 90024
Practice phone
Call (310) 794-9206
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Peter Morton UCLA Medical Building

Los Angeles, California

See all 7 affiliations

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William Carroll is an internist in Los Angeles, California

William Carroll practices at Peter Morton UCLA Medical Building in Los Angeles, California.

William Carroll's NPI, 1295154102, was assigned on April 8, 2014. William Carroll graduated from St. George's University School of Medicine in 2014. William Carroll's California license number on file is A155343.

NPI and contact details
Medicare PAC ID
2163793399
NPI enumeration date
April 8, 2014
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(310) 794-9206
Professional email
Get email
Personal email
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Mobile number
Get number
Sex
Male
Estimated age
38
Medical school graduation
2014

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

William Carroll practices at Peter Morton UCLA Medical Building in Los Angeles, California

William Carroll's primary practice is Peter Morton UCLA Medical Building, at 200 Medical Plz, Los Angeles, CA 90024 in Los Angeles County. The practice phone is (310) 794-9206.

  • Peter Morton UCLA Medical Building
    200 Medical Plz, Los Angeles, CA 90024 · Los Angeles CountyPhone(310) 794-9206

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

William Carroll is affiliated with 5 sites of care and 2 medical groups

William Carroll's primary practice is Peter Morton UCLA Medical Building in Los Angeles, California. William Carroll is also affiliated with Ronald Reagan UCLA Medical Center. The medical group on file is UCLA Medical Group. Dmand AI also links William Carroll to 1 more hospital, 2 group practices and clinics and 1 medical group, each named with a free account.

See all 7 affiliations for William Carroll

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

Dmand AI tracks the EHR system at William Carroll's practice

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

EHR by site
SiteEHR vendor and product
Peter Morton UCLA Medical BuildingAvailable with a free account
+4 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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William Carroll is one of 16,751 internists in California

Internal medicine is William Carroll's primary specialty in the NPI Registry, under taxonomy code 207R00000X. William Carroll is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has William Carroll's licenses on file in 9 states: California, New York, Montana, Ohio, South Carolina, Alaska, Alabama, Georgia and New Hampshire.

Specialties and state licenses

  • Internal medicine, CaliforniaPrimaryLicense A155343 · 2018 to 2025 · taxonomy 207R00000X
  • New York license2017 to 2019
  • Montana license1994 to 2017
  • Ohio license2012 to 2017
  • South Carolina license2009 to 2017
  • Alaska license1988 to 2016
  • Alabama license2011 to 2016
  • Georgia license2009 to 2016
  • New Hampshire license2012 to 2016

Clinical focus

Dmand AI lists acute kidney failure, acute sinusitis, adjustment disease, alzheimer's disease, aneurysm, anxiety, aortic atherosclerois and arthritis among the conditions William Carroll treats.

Internists near William Carroll

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

William Carroll billed Medicare for 6,216 services in 2024

CMS data shows 6,216 Medicare services from William Carroll across 10 procedure codes in 2024, for 502 Medicare patients. Medicare paid $85,497 for them.

Medicare services, 20246,216
Medicare patients502
Paid by Medicare$85,497
Procedure codes10

William Carroll's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Tests and treatments
2023: 7,9422024: 5,38832%
Office and hospital visits
2023: 7802024: 55029%
Other services
2023: 472024: 278491%

Where William Carroll's Medicare services took place, 2024

  • In an office240%
  • In a facility6,192100%

William Carroll compared with the California median for internists, 2024

  • William Carroll
  • California median
Medicare services
6,216vs 36117.2 times
Medicare patients
502vs 1513.3 times
Part D claims
3,098vs 4217.4 times

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

William Carroll'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 William Carroll

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

William Carroll treated 502 Medicare patients in 2024, average age 73

CMS counts 502 Medicare patients who saw William Carroll in 2024. The largest group is 65 to 74, with 182 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 30% are also on Medicaid. Their average risk score is 2.72, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts William Carroll's median patient age at 63, with 42% women.

Medicare patients, 2024502
Average age73
Average risk score2.72
Also on Medicaid30%

William Carroll's Medicare patients by age, 2024

William Carroll's Medicare patients by sex, 2024

  • Women23948%
  • Men26352%

Chronic conditions among William Carroll's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis54%
  4. Atrial fibrillation52%
  5. Ischemic heart disease44%
  6. Heart failure43%
  7. Chronic kidney disease41%
  8. Diabetes37%

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

William Carroll's patients across all payers

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

Patient panel by age, all payers

Median age 63

Patient panel by sex, all payers

  • Women42%
  • Men57%

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

William Carroll wrote 3,780 Medicare Part D claims in 2024

In 2024, William Carroll wrote 3,780 Medicare Part D claims for 519 patients. 91% of them were for generic drugs. CMS names the drug for 3,098 of them, across 80 drugs with 11 or more claims each, at $155,266 in total drug cost. In 2023, CMS named 3,146 claims across 78 drugs.

Part D claims, 20243,780
Drugs named by CMS80
Total drug cost$155,266
Part D patients519

William Carroll's Part D claims by kind of drug, 2024

  • Generic3,439 claims91%
  • Brand-name and other341 claims9%

William Carroll'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.

Drug classes CMS tracks in William Carroll's Part D claims, 2024

  • Opioids3%109 of 3,780 claims
  • Antibiotics4%152 of 3,780 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 3,1462024: 3,0982%

Drugs named by CMS: 80 in 2024, 78 in 2023.

See all prescribing by William Carroll

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

William Carroll offers telehealth to Medicare patients

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

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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William Carroll graduated from St. George's University School of Medicine

William Carroll graduated from St. George's University School of Medicine in 2014. William Carroll is a member of ACP.

  1. Medical schoolSt. George's University School of Medicine
  2. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

William Carroll accepts plans from 7 insurance carriers

William Carroll is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • CMS Medicare
  • LA Care

Plan types William Carroll accepts, by number of carriers

  1. Medicare6
  2. PPO5
  3. HMO3
  4. POS2
  5. EPO1

Source: Dmand AI Insurance Network Data

Sources for William Carroll'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 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)
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 William Carroll

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

What is William Carroll's NPI number?

William Carroll's NPI number is 1295154102. It was assigned on April 8, 2014, and it is active in the NPI Registry.

What does William Carroll specialize in?

William Carroll is an internist in Los Angeles, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does William Carroll practice?

William Carroll practices at 200 Medical Plz, Los Angeles, CA 90024. William Carroll's primary practice is Peter Morton UCLA Medical Building in Los Angeles, California. Dmand AI also links William Carroll to 1 hospital, 2 group practices and clinics and 1 medical group.

What is William Carroll's office phone number?

The practice phone on file for William Carroll is (310) 794-9206.

What is William Carroll's medical license number?

William Carroll's California license number on file is A155343, one of the licenses on file in 9 states.

Which states has William Carroll been licensed in?

Dmand AI has state licenses on file for William Carroll in California (2018 to 2025), New York (2017 to 2019), Montana (1994 to 2017), Ohio (2012 to 2017), South Carolina (2009 to 2017), Alaska (1988 to 2016), Alabama (2011 to 2016), Georgia (2009 to 2016) and New Hampshire (2012 to 2016).

Which hospitals is William Carroll affiliated with?

William Carroll is affiliated with Ronald Reagan UCLA Medical Center. Dmand AI links William Carroll to 1 more hospital.

What medical group is William Carroll part of?

William Carroll is linked to UCLA Medical Group. Dmand AI links William Carroll to 1 more medical group.

Does William Carroll accept Medicare?

Yes. CMS data shows William Carroll billed Medicare for 6,216 services in 2024, and William Carroll accepts Medicare assignment.

Does William Carroll offer telehealth?

Yes. The CMS Doctors and Clinicians file lists William Carroll as offering telehealth services.

Show 7 more questionsShow fewer questions

How many Medicare patients does William Carroll see?

CMS counts 502 Medicare patients who saw William Carroll in 2024, with an average age of 73.

Is William Carroll board certified?

Yes. William Carroll is board certified in internal medicine by the American Board of Internal Medicine.

What services does William Carroll bill to Medicare?

In 2024, William Carroll's most billed Medicare services were heart test or procedure (93793), office visit, established patient (99215) and medicare service (G2211).

Where did William Carroll go to medical school?

William Carroll graduated from St. George's University School of Medicine in 2014.

What drugs does William Carroll prescribe most?

In 2024 Medicare Part D data, William Carroll's most prescribed drugs by claims were Warfarin Sodium, Atorvastatin Calcium and Pantoprazole Sodium.

How long has William Carroll been practicing?

William Carroll graduated from medical school in 2014, 12 years ago.

What insurance does William Carroll accept?

William Carroll is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.

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