Silas Nwaishienyi, M.D
NPI 1336269802 · Adult Medicine Physician · Westbury, NY
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Silas Nwaishienyi, M.D is a Adult Medicine Physician provider in Westbury, NY (NPI 1336269802).
Provider details
- NPI number
- 1336269802
- Entity type
- Individual
- Primary specialty
- Adult Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Male
- Sole proprietor
- Yes
- License
- 243375 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
67 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 35 | $131 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 32 | $190 |
Typical Medicare-allowed amounts for these services range $131–$190 (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 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Naproxen | 73 | 70 |
| Amlodipine Besylate | 53 | 17 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 42 | 23 |
| Simvastatin | 39 | 15 |
| Metformin Hcl | 32 | 11 |
| Lisinopril | 30 | — |
| Famotidine | 27 | 20 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$416 across 16 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-03-30
- Last updated
- 2013-06-22
Frequently asked questions
- What is Silas Nwaishienyi's NPI number?
- Silas Nwaishienyi's National Provider Identifier (NPI) is 1336269802, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Silas Nwaishienyi's specialty?
- Silas Nwaishienyi is listed in the NPPES registry with a primary specialty of Adult Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Silas Nwaishienyi located?
- Silas Nwaishienyi's practice location on file with NPPES is 167 Evergreen Dr, Westbury, NY 11590-1208.
- What is Silas Nwaishienyi's phone number?
- The practice phone number listed in the NPPES registry for Silas Nwaishienyi is (516) 610-8704.
- Does Silas Nwaishienyi accept Medicare?
- Silas Nwaishienyi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Silas Nwaishienyi's NPI active?
- Yes — Silas Nwaishienyi's NPI (1336269802) is active in the NPPES registry as of the last update on 2013-06-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.