Ronald Bailyn, MD
NPI 1699772772 · Psychiatry Physician · Portland, ME
Ronald Bailyn, MD is a Psychiatry Physician provider in Portland, ME (NPI 1699772772).
Provider details
- NPI number
- 1699772772
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 011874 (ME)
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
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
- 2005-07-05
- Last updated
- 2008-10-03
Frequently asked questions
- What is Ronald Bailyn's NPI number?
- Ronald Bailyn's National Provider Identifier (NPI) is 1699772772, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronald Bailyn's specialty?
- Ronald Bailyn is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Ronald Bailyn located?
- Ronald Bailyn's practice location on file with NPPES is 121 Middle St, Portland, ME 04101-4156.
- What is Ronald Bailyn's phone number?
- The practice phone number listed in the NPPES registry for Ronald Bailyn is (207) 772-8634.
- Is Ronald Bailyn's NPI active?
- Yes — Ronald Bailyn's NPI (1699772772) is active in the NPPES registry as of the last update on 2008-10-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.