Daniel Williams, MD
NPI 1811094451 · Child & Adolescent Psychiatry Physician · New Hyde Park, NY
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Daniel Williams, MD is a Child & Adolescent Psychiatry Physician provider in New Hyde Park, NY (NPI 1811094451).
Provider details
- NPI number
- 1811094451
- Entity type
- Individual
- Primary specialty
- Child & Adolescent Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 107547 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,029 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 455 | $104 |
| Psychotherapy With Evaluation and Management Visit, 45 Minutes90836 | 378 | $100 |
| Family Psychotherapy With Patient, 50 Minutes90847 | 74 | $110 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 71 | $79 |
| Family Psychotherapy Without Patient, 50 Minutes90846 | 51 | $106 |
Typical Medicare-allowed amounts for these services range $79–$110 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 28 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clonazepam | 115 | 18 |
| Trazodone Hcl | 84 | 16 |
| Gabapentin | 68 | — |
| Bupropion Hclbrand: Bupropion Xl | 64 | 13 |
| Quetiapine Fumarate | 56 | — |
| Topiramate | 52 | — |
| Sertraline Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-17
- Last updated
- 2014-05-28
Frequently asked questions
- What is Daniel Williams's NPI number?
- Daniel Williams's National Provider Identifier (NPI) is 1811094451, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Daniel Williams's specialty?
- Daniel Williams is listed in the NPPES registry with a primary specialty of Child & Adolescent Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Daniel Williams located?
- Daniel Williams's practice location on file with NPPES is 2001 Marcus Ave., New Hyde Park, NY 11042.
- What is Daniel Williams's phone number?
- The practice phone number listed in the NPPES registry for Daniel Williams is (516) 488-3636.
- Does Daniel Williams accept Medicare?
- Daniel Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Daniel Williams's NPI active?
- Yes — Daniel Williams's NPI (1811094451) is active in the NPPES registry as of the last update on 2014-05-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.