Bernard Nash, M.D.
NPI 1831196187 · Internal Medicine Physician · West Islip, NY
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Bernard Nash, M.D. is a Internal Medicine Physician provider in West Islip, NY (NPI 1831196187).
Provider details
- NPI number
- 1831196187
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 145915 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
902 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 231 | $146 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 206 | $18 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 201 | $8 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 66 | $146 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 60 | $207 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 50 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 359 | 108 |
| Metoprolol Succinate | 119 | 39 |
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 119 | 15 |
| Losartan Potassium | 109 | 34 |
| Amlodipine Besylate | 103 | 29 |
| Metformin Hcl | 81 | 25 |
| Empagliflozin |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$22 across 1 record (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
- 2005-07-01
- Last updated
- 2013-03-15
Frequently asked questions
- What is Bernard Nash's NPI number?
- Bernard Nash's National Provider Identifier (NPI) is 1831196187, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Bernard Nash's specialty?
- Bernard Nash is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Bernard Nash located?
- Bernard Nash's practice location on file with NPPES is 500 Montauk Hwy, West Islip, NY 11795-4420.
- What is Bernard Nash's phone number?
- The practice phone number listed in the NPPES registry for Bernard Nash is (631) 587-7733.
- Does Bernard Nash accept Medicare?
- Bernard Nash is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Bernard Nash's NPI active?
- Yes — Bernard Nash's NPI (1831196187) is active in the NPPES registry as of the last update on 2013-03-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.