Willaim Allen Decker, PhD

  • Leesburg, VA
  • Cognitive and behavioral psychologist
NPI1033234950PAC ID6204987985
Medicare patients, 2024
23
Affiliated sites
1
State license
1
Year NPI issued
2007
Practice address
211 Gibson NW St, Leesburg, VA 20176
Practice phone
Call (571) 707-2085
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

LMG Cornwall Urgent Care

Urgent Care Center · Leesburg, Virginia

See all 1 affiliations

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Willaim Allen Decker is a cognitive and behavioral psychologist in Leesburg, Virginia

Willaim Decker practices at LMG Cornwall Urgent Care in Leesburg, Virginia.

Willaim Decker's NPI, 1033234950, was assigned on March 20, 2007. Willaim Decker holds Virginia license 0810002331.

NPI and contact details
Medicare PAC ID
6204987985
NPI enumeration date
March 20, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(571) 707-2085
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
77
Medical school graduation
1975

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

Willaim Allen Decker practices at LMG Cornwall Urgent Care in Leesburg, Virginia

Willaim Decker's primary practice is LMG Cornwall Urgent Care, at 211 Gibson NW St, Leesburg, VA 20176. The practice phone is (571) 707-2085.

  • LMG Cornwall Urgent Care
    211 Gibson NW St, Leesburg, VA 20176Phone(571) 707-2085

Source: Dmand AI Affiliation Data

Willaim Allen Decker is affiliated with 1 site of care

Willaim Decker's primary practice is LMG Cornwall Urgent Care in Leesburg, Virginia.

LMG Cornwall Urgent CareUrgent Care Center · Leesburg, VirginiaPrimary
Parent health systemName with a free account
See Willaim Decker's affiliation in Dmand AI

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

Dmand AI tracks the EHR system at Willaim Allen Decker's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Willaim Decker practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
LMG Cornwall Urgent CareAvailable with a free account

Source: Dmand AI Technology Install Data

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Willaim Allen Decker is one of 7 cognitives and behavioral psychologists in Virginia

Cognitive and behavioral is Willaim Decker's primary specialty in the NPI Registry, under taxonomy code 103TB0200X. Willaim Decker is licensed in Virginia.

Specialties and state licenses

  • Cognitive and behavioral psychologist, VirginiaPrimaryLicense 0810002331 · taxonomy 103TB0200X

Cognitives and behavioral psychologists near Willaim Decker

Counts of cognitives and behavioral psychologists with a Dmand AI profile, by place and practice. Each opens the list.

7cognitives and behavioral psychologists in Virginia

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Willaim Allen Decker treated 23 Medicare patients in 2024, average age 68

CMS counts 23 Medicare patients who saw Willaim Decker in 2024. 74% of them have anxiety, and 70% have high blood pressure. Their average risk score is 1.72, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Willaim Decker's median patient age at 68, with 37% women.

Medicare patients, 202423
Average age68
Average risk score1.72

Chronic conditions among Willaim Decker's Medicare patients, 2024

  1. Anxiety74%
  2. High blood pressure70%
  3. High cholesterol65%
  4. Mood disorders61%
  5. Depression48%

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

Willaim Decker's patients across all payers

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

Patient panel by age, all payers

Median age 68

Patient panel by sex, all payers

  • Women37%
  • Men63%

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

Willaim Allen Decker offers telehealth to Medicare patients

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

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

Sources for Willaim Allen Decker'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 DataMedicare Physician & Other Practitioners - 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)
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 Willaim Allen Decker

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

What is Willaim Allen Decker's NPI number?

Willaim Allen Decker's NPI number is 1033234950. It was assigned on March 20, 2007, and it is active in the NPI Registry.

What does Willaim Allen Decker specialize in?

Willaim Allen Decker is a cognitive and behavioral psychologist in Leesburg, Virginia. The primary specialty in the NPI Registry is Cognitive & Behavioral Psychologist (taxonomy code 103TB0200X).

Where does Willaim Allen Decker practice?

Willaim Decker practices at 211 Gibson NW St, Leesburg, VA 20176. Willaim Decker's primary practice is LMG Cornwall Urgent Care in Leesburg, Virginia.

What is Willaim Allen Decker's office phone number?

The practice phone on file for Willaim Decker is (571) 707-2085.

What is Willaim Allen Decker's medical license number?

Willaim Decker holds Virginia license 0810002331.

Does Willaim Allen Decker accept Medicare?

Yes. CMS lists Willaim Decker as accepting Medicare assignment.

Does Willaim Allen Decker offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Willaim Decker as offering telehealth services.

How many Medicare patients does Willaim Allen Decker see?

CMS counts 23 Medicare patients who saw Willaim Decker in 2024, with an average age of 68.

How long has Willaim Allen Decker been practicing?

Willaim Decker graduated from medical school in 1975, 51 years ago.

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