William Gross, M.D.
NPI 1982665907 · Addiction Psychiatry Physician · Brooklyn, NY
William Gross, M.D. is a Addiction Psychiatry Physician provider in Brooklyn, NY (NPI 1982665907).
Provider details
- NPI number
- 1982665907
- Entity type
- Individual
- Primary specialty
- Addiction Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 169896-1 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-29
- Last updated
- 2025-09-11
Frequently asked questions
- What is William Gross's NPI number?
- William Gross's National Provider Identifier (NPI) is 1982665907, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Gross's specialty?
- William Gross is listed in the NPPES registry with a primary specialty of Addiction Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is William Gross located?
- William Gross's practice location on file with NPPES is 591 Kingston Ave, Brooklyn, NY 11203-1707.
- What is William Gross's phone number?
- The practice phone number listed in the NPPES registry for William Gross is (718) 245-4871.
- Is William Gross's NPI active?
- Yes — William Gross's NPI (1982665907) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.