NPPES file of Aug 9, 2026

Daniel T. Williams, MD

Child & Adolescent Psychiatry Physician · New Hyde Park, NY

Daniel T. Williams, MD is a child & adolescent psychiatry physician with a practice address in New Hyde Park, New York, and NPI 1811094451, issued on Sep 17, 2006. Check the license (New York 107547, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1811094451
Name
Daniel T. Williams
Credential
MD
Primary taxonomy
Child & Adolescent Psychiatry Physician 2084P0804X
License number
107547 NY
Self-reported in NPPES; status is on the state search
Practice location
2001 Marcus Ave., New Hyde Park, NY 11042
Phone
(516) 488-3636
Enumerated
Sep 17, 2006
Record last updated
May 28, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(516) 270-3939
Medicare enrollment
Enrolled (PECOS I20120320000355); accepts Medicare assignment
Medical or professional school
Js Weill Medical College, Cornell University, 1969
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Daniel T. Williams in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 107547
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New York license search

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2.0 times the Medicare Part D claims of the average child & adolescent psychiatry physician in 2024

1,012 Medicare Part D claims for 60 beneficiaries, against an average of 504 among the 3,545 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims.

  1. Daniel Williams1,012
  2. Specialty average504

Most prescribed

  1. Clonazepam115 claims
  2. Trazodone Hcl84 claims
  3. Gabapentin68 claims
  4. Bupropion Xl64 claims
  5. Quetiapine Fumarate56 claims
  6. Topiramate52 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Daniel T. Williams among 827 child & adolescent psychiatry physician records in New York

Daniel T. Williams, MD is one of 827 child & adolescent psychiatry physician records with a practice address in New York. 57% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 75% newer
  • In a Medicare fileYes · 57% of these records are
  • In the CMS Doctors and Clinicians fileYes · 26% of these records are
  • Graduated1969 · median 2001 among the 213 with a school on file
  • Record last updated2014 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0804X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Child & Adolescent Psychiatry Physician providers in New York

There are 827 child & adolescent psychiatry physician records in New York.

The 8 child & adolescent psychiatry physician records with the nearest ZIP codes

  1. Sungnai Cho, M.D.New Hyde Park, NY 110401366534190
  2. Alexander El Sehamy, MDNew Hyde Park, NY 110401437655206
  3. Pouria Farhoomandi, M.D.New Hyde Park, NY 110401750729141
  4. Carmel Foley, MDNew Hyde Park, NY 110401760530158
  5. Asiya Kabir, M.D.New Hyde Park, NY 110401023261310
  6. Margarita Kats, M.D.New Hyde Park, NY 110401063755759
  7. Jennifer Sicignano, M.D.New Hyde Park, NY 110401598824559
  8. Maril Yehudian, MDNew Hyde Park, NY 110401619497096

Common questions

What is Daniel T. Williams, MD's NPI number?

Daniel T. Williams, MD's National Provider Identifier (NPI) is 1811094451, issued on Sep 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Daniel T. Williams, MD located?

The NPPES record lists a practice address at 2001 Marcus Ave., New Hyde Park, NY, 11042. Phone: (516) 488-3636. Providers update this record themselves, so call before visiting.

How can I verify Daniel T. Williams, MD's license?

NPPES lists New York license number 107547, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Daniel T. Williams, MD prescribe under Medicare Part D?

In 2024, Daniel T. Williams, MD had 1,012 Medicare Part D claims for 60 beneficiaries; the average among child & adolescent psychiatry physician prescribers was 504. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.