OrganizationActive
Ian M. Rubins, MD, PC
NPI 1689854192 · Specialist · Greenwich, CT
Ian M. Rubins, MD, PC is a Specialist organization in Greenwich, CT (NPI 1689854192).
Provider details
- NPI number
- 1689854192
- Entity type
- Organization
- Primary specialty
- SpecialistOther Service Providers
- Organization subpart
- No
- Authorized official
- Roberta Donis, Billing Administrator(203) 618-0687
- License
- 033766 (CT)
Specialties & taxonomies
Other Service Providers
Profile Score
Detailed profile(88/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
4 Dearfield Dr
Suite 106
Greenwich, CT 06831-5351
Phone: (203) 618-0687
Fax: (203) 869-0019
Street-level locationGet directions
Mailing address
4 Dearfield Dr
Greenwich, CT 06831-5351
Registry dates
- Enumerated
- 2007-11-13
- Last updated
- 2007-11-13
Frequently asked questions
- What is Ian M. Rubins, MD, PC's NPI number?
- Ian M. Rubins, MD, PC's National Provider Identifier (NPI) is 1689854192, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Ian M. Rubins, MD, PC?
- Ian M. Rubins, MD, PC is classified in the NPPES registry as Specialist (Other Service Providers).
- Where is Ian M. Rubins, MD, PC located?
- Ian M. Rubins, MD, PC's practice location on file with NPPES is 4 Dearfield Dr, Greenwich, CT 06831-5351.
- What is Ian M. Rubins, MD, PC's phone number?
- The practice phone number listed in the NPPES registry for Ian M. Rubins, MD, PC is (203) 618-0687.
- Who is the authorized official for Ian M. Rubins, MD, PC?
- The authorized official listed on Ian M. Rubins, MD, PC's NPPES record is Roberta Donis, Billing Administrator. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Ian M. Rubins, MD, PC's NPI active?
- Yes — Ian M. Rubins, MD, PC's NPI (1689854192) is active in the NPPES registry as of the last update on 2007-11-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.