Dr. Lawrence David Willison IV, MD, PhD
- Medicare services, 2018
- 152
- Part D claims, 2024
- 216
- Hospital affiliations
- 1
- Industry payments
- $365
- State license
- 1
- Practice address
- 11301 Wilshire Blvd., Los Angeles, CA 90073
- Practice phone
- Call (310) 478-3711
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Lawrence David Willison IV is a psychiatrist in Los Angeles, California
Dr. Willison practices at West Los Angeles VA Medical Center in Los Angeles, California, part of Veterans Health Administration.
Dr. Willison's NPI, 1104070010, was assigned on November 5, 2008. Dr. Willison graduated from UCSF School of Medicine in 2008. Dr. Willison's California license number on file is A111776.
- NPI
- 1104070010NPI Registry (opens in a new tab)
- NPI enumeration date
- November 5, 2008
- NPI status
- Active
- Practice phone
- (310) 478-3711
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Lawrence David Willison IV practices at West Los Angeles VA Medical Center in Los Angeles, California
Dr. Willison's primary practice is West Los Angeles VA Medical Center, at 11301 Wilshire Blvd., Los Angeles, CA 90073 in Los Angeles County. The practice phone is (310) 478-3711.
- West Los Angeles VA Medical Center11301 Wilshire Blvd., Los Angeles, CA 90073 · Los Angeles CountyPhone(310) 478-3711
Source: Dmand AI Affiliation Data
Dr. Lawrence David Willison IV is affiliated with 1 site of care
Dr. Willison's primary practice is West Los Angeles VA Medical Center in Los Angeles, California, part of Veterans Health Administration. Dr. Willison's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Lawrence David Willison IV's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Willison practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| West Los Angeles VA Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Lawrence David Willison IV is one of 6,803 psychiatrists in California
Psychiatry is Dr. Willison's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Willison is board certified in child & adolescent psychiatry by the American Board of Psychiatry and Neurology. Dr. Willison has a license on file in California.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
Psychiatrists near Dr. Willison
Counts of psychiatrists 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. Lawrence David Willison IV billed Medicare for 152 services in 2018
CMS data shows 152 Medicare services from Dr. Willison across 1 procedure code in 2018, all of them office visits. Medicare paid $12,025 for them. Every service was in an office.
Dr. Willison's Medicare services by type, 2017 to 2018
- 2017
- 2018
- Office and hospital visits
- 2017: 1732018: 15212%
Dr. Willison compared with the California median for psychiatrists, 2018
- Dr. Willison
- California median
- Medicare services
- 152vs 11928% above
- Part D claims
- 175vs 14422% above
Medians across 6,809 psychiatrists in California with Dmand AI profiles that report each measure.
Dr. Willison'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Willison and other psychiatrists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Lawrence David Willison IV's patients have a median age of 31
Across all payers, Dmand AI patient panel data puts Dr. Willison's median patient age at 31, with 40% women.
Dr. Willison's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 31
Patient panel by sex, all payers
- Women40%
- Men60%
Source: Dmand AI Patient Panel Data
Dr. Lawrence David Willison IV wrote 216 Medicare Part D claims in 2024
In 2024, Dr. Willison wrote 216 Medicare Part D claims. 100% of them were for generic drugs. CMS names the drug for 175 of them, across 10 drugs with 11 or more claims each, at $1,512 in total drug cost. In 2023, CMS named 183 claims across 11 drugs.
Dr. Willison'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: 1832024: 1754%
Drugs named by CMS: 10 in 2024, 11 in 2023.
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
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Dr. Lawrence David Willison IV received $365 in industry payments from 2016 to 2018
CMS Open Payments shows 10 general payments to Dr. Willison from 5 drug and device companies from 2016 to 2018. Consulting fees make up the largest share, 48% of the total. Otsuka Pharmaceutical Development & Commercialization, Inc. paid the most, $175.
General payments to Dr. Willison by program year, 2016 to 2018
General payments to Dr. Willison by kind, 2016 to 2018
- Consulting fees$17548%
- Food and beverage$15242%
- Education$3810%
Companies that paid Dr. Willison the most, 2016 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Lawrence David Willison IV has 3 awards and honors on record
Dmand AI lists 3 awards for Dr. Willison, most recently Predoctoral Fellowship in 2002.
Awards and honors for Dr. Willison
- 2002
- Predoctoral Fellowship
- 1995
- Phi Beta Kappa
- Sigma Xi Scientific Research Society
Source: Dmand AI Professional Profile Data
Dr. Lawrence David Willison IV graduated from UCSF School of Medicine
Dr. Willison graduated from UCSF School of Medicine in 2008. Dr. Willison is a member of AACAP, AMA, APA, Association for Behavioral and Cognitive Therapies and International Obsessive Compulsive Disorder Foundation.
- Medical school
- Board certified in child & adolescent psychiatry
- Board certified in psychiatry
Source: Dmand AI Professional Profile Data
Sources for Dr. Lawrence David Willison IV'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)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| 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 |
| 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. Lawrence David Willison IV
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. Lawrence David Willison IV's NPI number?
Dr. Lawrence David Willison IV's NPI number is 1104070010. It was assigned on November 5, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Lawrence David Willison IV?
Dr. Lawrence David Willison IV is a psychiatrist in Los Angeles, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Lawrence David Willison IV practice?
Dr. Willison practices at 11301 Wilshire Blvd., Los Angeles, CA 90073. Dr. Willison's primary practice is West Los Angeles VA Medical Center in Los Angeles, California, part of Veterans Health Administration.
What is Dr. Lawrence David Willison IV's office phone number?
The practice phone on file for Dr. Willison is (310) 478-3711.
What is Dr. Lawrence David Willison IV's medical license number?
Dr. Willison's California license number on file is A111776.
Which hospitals is Dr. Lawrence David Willison IV affiliated with?
Dr. Willison practices at West Los Angeles VA Medical Center in Los Angeles, California.
Does Dr. Lawrence David Willison IV accept Medicare?
Yes. CMS data shows Dr. Willison billed Medicare for 152 services in 2018.
Is Dr. Lawrence David Willison IV board certified?
Yes. Dr. Willison is board certified in child & adolescent psychiatry by the American Board of Psychiatry and Neurology.
What services does Dr. Lawrence David Willison IV bill to Medicare?
In 2018, Dr. Willison's most billed Medicare services were office visit, established patient (99214).
Where did Dr. Lawrence David Willison IV go to medical school?
Dr. Willison graduated from UCSF School of Medicine in 2008.
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What drugs does Dr. Lawrence David Willison IV prescribe most?
In 2024 Medicare Part D data, Dr. Willison's most prescribed drugs by claims were Gabapentin, Olanzapine and Sertraline HCl.
Has Dr. Lawrence David Willison IV received payments from drug or device companies?
CMS Open Payments shows $365 in general payments to Dr. Willison from 5 companies from 2016 to 2018. The largest total came from Otsuka Pharmaceutical Development & Commercialization, Inc.
How long has Dr. Lawrence David Willison IV been practicing?
Dr. Willison graduated from medical school in 2008, 18 years ago.
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