Dr. William David Carroll, MD
- Medicare services, 2019
- 157
- Part D claims, 2021
- 11
- Publications
- 4
- Hospital affiliations
- 1
- Industry payments
- $1,069
- Practice address
- 757 Westwood Plaza, Los Angeles, CA 90095
- Practice phone
- Call (310) 825-6301
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Carroll's professional email, personal email and mobile number
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Dr. William David Carroll is an internist in Los Angeles, California
Dr. Carroll practices at Ronald Reagan UCLA Medical Center in Los Angeles, California, part of University of California Health.
Dr. Carroll's NPI, 1922005891, was assigned on July 6, 2005. Dr. Carroll graduated from Indiana University School Of Medicine in 1982. Dr. Carroll holds California license A39947.
- NPI
- 1922005891NPI Registry (opens in a new tab)
- NPI enumeration date
- July 6, 2005
- NPI status
- Active
- Practice phone
- (310) 825-6301
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. William David Carroll practices at Ronald Reagan UCLA Medical Center in Los Angeles, California
Dr. Carroll's primary practice is Ronald Reagan UCLA Medical Center, at 757 Westwood Plaza, Los Angeles, CA 90095 in Los Angeles County. The practice phone is (310) 825-6301.
- Ronald Reagan UCLA Medical Center757 Westwood Plaza, Los Angeles, CA 90095 · Los Angeles CountyPhone(310) 825-6301
Source: Dmand AI Affiliation Data
Dr. William David Carroll is affiliated with 1 site of care
Dr. Carroll's primary practice is Ronald Reagan UCLA Medical Center in Los Angeles, California, part of University of California Health.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William David Carroll's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Carroll practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ronald Reagan UCLA Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. William David Carroll is one of 16,751 internists in California
Internal medicine is Dr. Carroll's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Carroll is board certified in internal medicine by the American Board of Internal Medicine. Dr. Carroll is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. 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
Dr. William David Carroll billed Medicare for 157 services in 2019
CMS data shows 157 Medicare services from Dr. Carroll across 3 procedure codes in 2019. Medicare paid $8,261 for them. Every service was in an office.
Dr. Carroll's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Office and hospital visits
- 2018: 8012019: 13483%
- Other services
- 2018: 1992019: 2388%
- Tests and treatments
- 2018: 1612019: 0100%
- Surgery
- 2018: 152019: 0100%
Dr. Carroll compared with the California median for internists, 2019
- Dr. Carroll
- California median
- Medicare services
- 157vs 36157% below
- Part D claims
- 11vs 42197% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Carroll's most billed Medicare procedure codes, 2019
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Carroll?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Carroll and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William David Carroll's patients have a median age of 79
Across all payers, Dmand AI patient panel data puts Dr. Carroll's median patient age at 79, with 75% women.
Dr. 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 79
Patient panel by sex, all payers
- Women75%
- Men25%
Source: Dmand AI Patient Panel Data
Dr. William David Carroll wrote 11 Medicare Part D claims in 2021
In 2021, Dr. Carroll wrote 11 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $131 in total drug cost. In 2020, CMS named 56 claims across 4 drugs.
Dr. Carroll's most prescribed drugs by claims, 2021
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, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 562021: 1180%
Drugs named by CMS: 1 in 2021, 4 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. William David Carroll has 4 publications on record
Dmand AI links 4 papers to Dr. Carroll.
Recent publications by Dr. Carroll
See who Dr. Carroll researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Carroll works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. William David Carroll received $1,069 in industry payments from 2016 to 2019
CMS Open Payments shows 88 general payments to Dr. Carroll from 14 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 100% of the total. GlaxoSmithKline, LLC. paid the most, $508.
General payments to Dr. Carroll by program year, 2016 to 2019
Companies that paid Dr. Carroll the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William David Carroll has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Carroll, most recently Fellow in 1996.
Awards and honors for Dr. Carroll
- 1996
- Fellow
- 1977
- Phi Beta Kappa
Source: Dmand AI Professional Profile Data
Dr. William David Carroll graduated from Indiana University School Of Medicine
Dr. Carroll graduated from Indiana University School Of Medicine in 1982.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. William David Carroll accepts plans from 3 insurance carriers
Dr. Carroll is in network with 3 carriers, including Blue Cross Blue Shield of Massachusetts, Elevance and HCSC. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Massachusetts
- Elevance
- HCSC
Plan types Dr. Carroll accepts, by number of carriers
- Medicare3
- PPO3
Source: Dmand AI Insurance Network Data
Sources for Dr. William David Carroll'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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 Dr. William David 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 Dr. William David Carroll's NPI number?
Dr. William David Carroll's NPI number is 1922005891. It was assigned on July 6, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. William David Carroll?
Dr. William David Carroll is an internist in Los Angeles, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. William David Carroll practice?
Dr. Carroll practices at 757 Westwood Plaza, Los Angeles, CA 90095. Dr. Carroll's primary practice is Ronald Reagan UCLA Medical Center in Los Angeles, California, part of University of California Health.
What is Dr. William David Carroll's office phone number?
The practice phone on file for Dr. Carroll is (310) 825-6301.
What is Dr. William David Carroll's medical license number?
Dr. Carroll holds California license A39947.
Which hospitals is Dr. William David Carroll affiliated with?
Dr. Carroll practices at Ronald Reagan UCLA Medical Center in Los Angeles, California.
Does Dr. William David Carroll accept Medicare?
Yes. CMS data shows Dr. Carroll billed Medicare for 157 services in 2019.
Is Dr. William David Carroll board certified?
Yes. Dr. Carroll is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. William David Carroll bill to Medicare?
In 2019, Dr. Carroll's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and medicare service (G0439).
Where did Dr. William David Carroll go to medical school?
Dr. Carroll graduated from Indiana University School Of Medicine in 1982.
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What drugs does Dr. William David Carroll prescribe most?
In 2021 Medicare Part D data, Dr. Carroll's most prescribed drugs by claims were Levothyroxine Sodium.
Has Dr. William David Carroll received payments from drug or device companies?
CMS Open Payments shows $1,069 in general payments to Dr. Carroll from 14 companies from 2016 to 2019. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. William David Carroll been practicing?
Dr. Carroll graduated from medical school in 1982, 44 years ago.
Does Dr. William David Carroll do research?
Dmand AI links 4 publications to Dr. Carroll.
What insurance does Dr. William David Carroll accept?
Dr. Carroll is in network with 3 carriers, including Blue Cross Blue Shield of Massachusetts, Elevance and HCSC. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
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