Robert S Mcwilliam MD LLC
NPI 1215486261 · Psychiatry Physician · Woodbury, CT
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert S Mcwilliam MD LLC is a Psychiatry Physician organization in Woodbury, CT (NPI 1215486261).
Provider details
- NPI number
- 1215486261
- Entity type
- Organization
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Robert Mcwilliam, Owner(203) 266-0404
- License
- 022885 (CT)
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
9 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
- 2016-09-30
- Last updated
- 2016-09-30
Frequently asked questions
- What is Robert S Mcwilliam MD LLC's NPI number?
- Robert S Mcwilliam MD LLC's National Provider Identifier (NPI) is 1215486261, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Robert S Mcwilliam MD LLC?
- Robert S Mcwilliam MD LLC is classified in the NPPES registry as Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Robert S Mcwilliam MD LLC located?
- Robert S Mcwilliam MD LLC's practice location on file with NPPES is 4 S Pomperaug Ave, Woodbury, CT 06798-3709.
- What is Robert S Mcwilliam MD LLC's phone number?
- The practice phone number listed in the NPPES registry for Robert S Mcwilliam MD LLC is (203) 266-0404.
- Does Robert S Mcwilliam MD LLC accept Medicare?
- Robert S Mcwilliam MD LLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Robert S Mcwilliam MD LLC?
- The authorized official listed on Robert S Mcwilliam MD LLC's NPPES record is Robert Mcwilliam, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Robert S Mcwilliam MD LLC's NPI active?
- Yes — Robert S Mcwilliam MD LLC's NPI (1215486261) is active in the NPPES registry as of the last update on 2016-09-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.