William Brownstein, DDS
NPI 1780662379 · Endodontics · Great Neck, NY
William Brownstein, DDS is a Endodontics provider in Great Neck, NY (NPI 1780662379).
Provider details
- NPI number
- 1780662379
- Entity type
- Individual
- Primary specialty
- EndodonticsDental Providers
- Credential
- DDS
- Sex
- Male
- Sole proprietor
- Yes
- License
- DN31310 (FL)
Specialties & taxonomies
Dental Providers
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin | 124 | 106 |
| Ibuprofen | 66 | 65 |
| Azithromycin | 29 | 24 |
| Clindamycin Hcl | 12 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 250 S Ocean Blvd Apt 9aBoca Raton, FL 33432-6255Phone: (516) 532-4686
Registry dates
- Enumerated
- 2006-01-04
- Last updated
- 2026-06-03
- Certified
- 2026-06-03
Frequently asked questions
- What is William Brownstein's NPI number?
- William Brownstein's National Provider Identifier (NPI) is 1780662379, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Brownstein's specialty?
- William Brownstein is listed in the NPPES registry with a primary specialty of Endodontics (Dental Providers).
- Where is William Brownstein located?
- William Brownstein's practice location on file with NPPES is 1000 Northern Blvd Ste 265, Great Neck, NY 11021-5338.
- What is William Brownstein's phone number?
- The practice phone number listed in the NPPES registry for William Brownstein is (516) 627-9393.
- Is William Brownstein's NPI active?
- Yes — William Brownstein's NPI (1780662379) is active in the NPPES registry as of the last update on 2026-06-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.