Robert J Obrien Jr MD & Assoc PC
NPI 1588646715 · Dermatology Physician · Winchester, MA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert J Obrien Jr MD & Assoc PC is a Dermatology Physician organization in Winchester, MA (NPI 1588646715).
Provider details
- NPI number
- 1588646715
- Entity type
- Organization
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Robert Obrien, President(781) 729-4878
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
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
- 2005-11-15
- Last updated
- 2020-08-22
Frequently asked questions
- What is Robert J Obrien Jr MD & Assoc PC's NPI number?
- Robert J Obrien Jr MD & Assoc PC's National Provider Identifier (NPI) is 1588646715, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Robert J Obrien Jr MD & Assoc PC?
- Robert J Obrien Jr MD & Assoc PC is classified in the NPPES registry as Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Robert J Obrien Jr MD & Assoc PC located?
- Robert J Obrien Jr MD & Assoc PC's practice location on file with NPPES is 955 Main St, Winchester, MA 01890-1961.
- What is Robert J Obrien Jr MD & Assoc PC's phone number?
- The practice phone number listed in the NPPES registry for Robert J Obrien Jr MD & Assoc PC is (781) 729-4878.
- Does Robert J Obrien Jr MD & Assoc PC accept Medicare?
- Robert J Obrien Jr MD & Assoc PC 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 J Obrien Jr MD & Assoc PC?
- The authorized official listed on Robert J Obrien Jr MD & Assoc PC's NPPES record is Robert Obrien, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Robert J Obrien Jr MD & Assoc PC's NPI active?
- Yes — Robert J Obrien Jr MD & Assoc PC's NPI (1588646715) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.