DR. WILLIAM LAURENCE COHEN M.D.
NPI 1477865046
Psychiatry & Neurology - Child & Adolescent Psychiatry in Washington, DC
About Dr. William Laurence Cohen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM LAURENCE COHEN M.D. (NPI 1477865046) is an individual child & adolescent psychiatry provider in Washington, District Of Columbia, licensed in District Of Columbia (MD042426) and active in the NPI registry since July 2010. He is enrolled in Medicare PECOS and is a graduate of Jefferson Medical College Of Thomas Jefferson University (2010).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. William Laurence Cohen M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show William Cohen reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Washington, DC 20007
- Reassigned Medicare billing, District of Columbia enrollment
- 3,530 clinicians in this Medicare group
Washington, DC 20007
- Reassigned Medicare billing, District of Columbia enrollment
- 861 clinicians in this Medicare group
Washington, DC 20010
- Reassigned Medicare billing, District of Columbia enrollment
- Medicare enrollment name: Whc Physician Group LLC
- 613 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WASHINGTON, DC 20007
WASHINGTON, DC 20007
WASHINGTON, DC 20007
WASHINGTON, DC 20007
WASHINGTON, DC 20007
WASHINGTON, DC 20007
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is William Cohen's NPI number?
The NPI number for William Cohen is 1477865046. It was assigned to this individual provider in the NPPES registry on July 11, 2010.
Where is William Cohen located?
William Cohen practices at 3800 Reservoir Rd NW, Washington, DC 20007. The listed phone number is (202) 944-5400.
What is William Cohen's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Child & Adolescent Psychiatry, with taxonomy code 2084P0804X.
Is William Cohen enrolled in Medicare?
Yes. William Cohen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for William Cohen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Cohen reassigns Medicare benefits to 3 organizations: Medstar Medical Group II LLC (Washington, DC), Mgmc LLC (Washington, DC) and Whc Emerg Phys (Washington, DC). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for William Cohen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for William Cohen was last updated on March 16, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. William Laurence Cohen, M.D. · NPI 1477865046
Child & Adolescent Psychiatry physician in Washington, District of Columbia. Individual provider, active in the CMS NPPES registry since July 11, 2010.
## Identity
- **NPI:** 1477865046 (Entity type: Individual)
- **Enumerated:** July 11, 2010
- **Primary specialty:** Psychiatry & Neurology - Child & Adolescent Psychiatry · taxonomy 2084P0804X
- **State license:** MD042426 (District of Columbia)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 3800 RESERVOIR RD NW, Washington, DC 20007-2113
- **Phone:** (202) 944-5400
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Medstar Medical Group II LLC (NPI 1205562816, Washington, DC); Mgmc LLC (NPI 1316949654, Washington, DC); Whc Emerg Phys (NPI 1306260625, Washington, DC) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Jefferson Medical College Of Thomas Jefferson University, class of 2010
## Record status
- **NPPES last updated:** March 16, 2017
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Source: [NPI Profile](https://npiprofile.com/npi/1477865046) · Data from the CMS NPPES public registry.