Allen Malcolm Williams, M.D., PLLC
NPI 1588820997 · Anesthesiology Physician · Smithtown, NY
Allen Malcolm Williams, M.D., PLLC is a Anesthesiology Physician organization in Smithtown, NY (NPI 1588820997).
Provider details
- NPI number
- 1588820997
- Entity type
- Organization
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Allen Williams, President(631) 521-7341
- License
- 223882 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
- 2008-08-05
- Last updated
- 2008-12-02
Frequently asked questions
- What is Allen Malcolm Williams, M.D., PLLC's NPI number?
- Allen Malcolm Williams, M.D., PLLC's National Provider Identifier (NPI) is 1588820997, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Allen Malcolm Williams, M.D., PLLC?
- Allen Malcolm Williams, M.D., PLLC is classified in the NPPES registry as Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Allen Malcolm Williams, M.D., PLLC located?
- Allen Malcolm Williams, M.D., PLLC's practice location on file with NPPES is 415 W Main St, Smithtown, NY 11787-2612.
- What is Allen Malcolm Williams, M.D., PLLC's phone number?
- The practice phone number listed in the NPPES registry for Allen Malcolm Williams, M.D., PLLC is (631) 521-7341.
- Who is the authorized official for Allen Malcolm Williams, M.D., PLLC?
- The authorized official listed on Allen Malcolm Williams, M.D., PLLC's NPPES record is Allen Williams, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Allen Malcolm Williams, M.D., PLLC's NPI active?
- Yes — Allen Malcolm Williams, M.D., PLLC's NPI (1588820997) is active in the NPPES registry as of the last update on 2008-12-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.