Roslyn Gerwin, D.O.
NPI 1710274709 · Psychiatry Physician · South Portland, ME
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Roslyn Gerwin, D.O. is a Psychiatry Physician provider in South Portland, ME (NPI 1710274709).
Provider details
- NPI number
- 1710274709
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 248075 (MA)
Specialties & taxonomies
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
14 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
- 2011-06-29
- Last updated
- 2016-08-18
Frequently asked questions
- What is Roslyn Gerwin's NPI number?
- Roslyn Gerwin's National Provider Identifier (NPI) is 1710274709, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Roslyn Gerwin's specialty?
- Roslyn Gerwin is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Roslyn Gerwin located?
- Roslyn Gerwin's practice location on file with NPPES is 300 Southborough Dr, South Portland, ME 04106-6914.
- What is Roslyn Gerwin's phone number?
- The practice phone number listed in the NPPES registry for Roslyn Gerwin is (207) 661-2000.
- Does Roslyn Gerwin accept Medicare?
- Roslyn Gerwin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Roslyn Gerwin's NPI active?
- Yes — Roslyn Gerwin's NPI (1710274709) is active in the NPPES registry as of the last update on 2016-08-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.