William D. Gaillard

  • Washington, DC
  • Psychiatrist
NPI1295754869PAC ID9335144989
Publications
318
Hospital affiliations
2
Industry payments
$2,989
Medical groups
2
Insurance carriers
16
Practice address
111 Michigan Ave, NW, Washington, DC 20010
Practice phone
Call (202) 476-5000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Children's National Hospital

Hospital · Washington, District of Columbia

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William D. Gaillard is a psychiatrist in Washington, District of Columbia

William Gaillard practices at Children's National Hospital in Washington, District of Columbia, part of Children's National Hospital.

William Gaillard's NPI, 1295754869, was assigned on July 18, 2006. William Gaillard graduated from Yale School of Medicine in 1985. William Gaillard holds Virginia license 0101053185.

NPI and contact details
Medicare PAC ID
9335144989
NPI enumeration date
July 18, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(202) 476-5000
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
67
Medical school graduation
1985

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

William D. Gaillard practices at Children's National Hospital in Washington, District of Columbia

William Gaillard's primary practice is Children's National Hospital, at 111 Michigan Ave, NW, Washington, DC 20010 in The District County. The practice phone is (202) 476-5000.

Source: Dmand AI Affiliation Data

William D. Gaillard is affiliated with 3 sites of care and 2 medical groups

William Gaillard's primary practice is Children's National Hospital in Washington, District of Columbia, part of Children's National Hospital. William Gaillard is also affiliated with MedStar Georgetown University Hospital. The medical group on file is Inova Urgent Care Center. Dmand AI also links William Gaillard to 1 more dialysis center and 1 medical group, each named with a free account.

See all 5 affiliations for William Gaillard

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

Dmand AI tracks the EHR system at William D. Gaillard's practice

Dmand AI tracks the electronic health record (EHR) system at each site where William Gaillard practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Children's National HospitalAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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William D. Gaillard is one of 220 psychiatrists in District of Columbia

Psychiatry is William Gaillard's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. William Gaillard is board certified in epilepsy by the American Board of Psychiatry and Neurology. Dmand AI has William Gaillard's licenses on file in 4 states: Virginia, District of Columbia, Maryland and Pennsylvania.

Specialties and state licenses

  • Psychiatry, VirginiaPrimaryLicense 0101053185 · 1995 to 2026 · taxonomy 2084P0800X
  • Pediatric neurodevelopmental disabilities, District of ColumbiaLicense 19882 · 1992 to 2026 · taxonomy 2080P0008X
  • Maryland license1987 to 2026
  • Pennsylvania license1986 to 1988

Psychiatrists near William Gaillard

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

William D. Gaillard's patients have a median age of 13

Across all payers, Dmand AI patient panel data puts William Gaillard's median patient age at 13, with 43% women.

William Gaillard's patients across all payers

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

Patient panel by age, all payers

Median age 13

Patient panel by sex, all payers

  • Women43%
  • Men54%

Source: Dmand AI Patient Panel Data

How William D. Gaillard takes part in Medicare

William Gaillard 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)

William D. Gaillard has 318 publications on record

Dmand AI links 318 papers to William Gaillard, published from 2005 to 2025. 2018 was the busiest year, with 22. The most frequent topics are Magnetic Resonance Imaging, Epilepsy and Brain. William Gaillard has published most often in Epilepsia. William Gaillard's most frequent co-authors are Chima Obioma Oluigbo, MD, Tobias Loddenkemper, MD and Kevin E. Chapman, MD.

Papers318
Years published2005 to 2025

William Gaillard's papers by year, 2016 to 2025

Topics William Gaillard writes about most

  • Magnetic Resonance Imaging
  • Epilepsy
  • Brain
  • Brain Mapping
  • Seizures
  • Electroencephalography
  • Anticonvulsants
  • Language

William Gaillard's most frequent co-authors

Recent publications by William Gaillard

See all 318 publications and co-authors

See who William Gaillard researches with

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

How network discovery works

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

William D. Gaillard received $2,989 in industry payments from 2022 to 2025

CMS Open Payments shows 6 general payments to William Gaillard from 3 drug and device companies from 2022 to 2025. Consulting fees make up the largest share, 80% of the total. BTG International, Inc. paid the most, $2,400.

General payments to William Gaillard by program year, 2022 to 2025

General payments to William Gaillard by kind, 2022 to 2025

$3Kin total
  • Consulting fees$2,40080%
  • Food and beverage$58920%

Companies that paid William Gaillard the most, 2022 to 2025

Share is of all general payments to this clinician.

See all payments to William Gaillard

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

William D. Gaillard has 1 award and honors on record

Dmand AI lists 1 award for William Gaillard.

Awards and honors for William Gaillard

  1. Undated
    • Super Doc

Source: Dmand AI Professional Profile Data

William D. Gaillard graduated from Yale School of Medicine

William Gaillard graduated from Yale School of Medicine in 1985.

  1. Medical schoolYale School of Medicine
  2. Board certified in epilepsyAmerican Board of Psychiatry and Neurology
  3. Board certified in neurology with special qualification in child neurologyAmerican Board of Psychiatry and Neurology

Source: Dmand AI Professional Profile Data

William D. Gaillard accepts plans from 16 insurance carriers

William Gaillard is in network with 16 carriers, including Aetna, Elevance and United Healthcare. HMO plans come from the most carriers, 9. Check the plan with the practice before a visit.

Plan types William Gaillard accepts, by number of carriers

  1. HMO9
  2. PPO8
  3. Medicare6
  4. POS5
  5. EPO4
  6. Medicaid3

Source: Dmand AI Insurance Network Data

Sources for William D. Gaillard'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 patients and the all-payer patient panelDmand AI Patient Panel Data
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
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
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 D. Gaillard

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 D. Gaillard's NPI number?

William D. Gaillard's NPI number is 1295754869. It was assigned on July 18, 2006, and it is active in the NPI Registry.

What does William D. Gaillard specialize in?

William D. Gaillard is a psychiatrist in Washington, District of Columbia. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).

Where does William D. Gaillard practice?

William Gaillard practices at 111 Michigan Ave, NW, Washington, DC 20010. William Gaillard's primary practice is Children's National Hospital in Washington, District of Columbia, part of Children's National Hospital. Dmand AI also links William Gaillard to 1 dialysis center and 1 medical group.

What is William D. Gaillard's office phone number?

The practice phone on file for William Gaillard is (202) 476-5000.

What is William D. Gaillard's medical license number?

William Gaillard holds Virginia license 0101053185, one of the licenses on file in 4 states.

Which states has William D. Gaillard been licensed in?

Dmand AI has state licenses on file for William Gaillard in Virginia (1995 to 2026), District of Columbia (1992 to 2026), Maryland (1987 to 2026) and Pennsylvania (1986 to 1988).

Which hospitals is William D. Gaillard affiliated with?

William Gaillard practices at Children's National Hospital in Washington, District of Columbia. William Gaillard is also affiliated with MedStar Georgetown University Hospital.

What medical group is William D. Gaillard part of?

William Gaillard is linked to Inova Urgent Care Center. Dmand AI links William Gaillard to 1 more medical group.

Does William D. Gaillard accept Medicare?

Yes. CMS lists William Gaillard as accepting Medicare assignment.

Is William D. Gaillard board certified?

Yes. William Gaillard is board certified in epilepsy by the American Board of Psychiatry and Neurology.

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Where did William D. Gaillard go to medical school?

William Gaillard graduated from Yale School of Medicine in 1985.

Has William D. Gaillard received payments from drug or device companies?

CMS Open Payments shows $2,989 in general payments to William Gaillard from 3 companies from 2022 to 2025. The largest total came from BTG International, Inc.

How long has William D. Gaillard been practicing?

William Gaillard graduated from medical school in 1985, 41 years ago.

Does William D. Gaillard do research?

Dmand AI links 318 publications to William Gaillard, published from 2005 to 2025.

Who does William D. Gaillard publish with?

William Gaillard's most frequent co-authors are Chima Obioma Oluigbo, MD (45 shared papers), Tobias Loddenkemper, MD (36 shared papers) and Kevin E. Chapman, MD (25 shared papers).

What insurance does William D. Gaillard accept?

William Gaillard is in network with 16 carriers, including Aetna, Elevance and United Healthcare. HMO plans come from the most carriers, 9. Check the plan with the practice before a visit.

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