IndividualActive
Ronald Marcus, MD
NPI 1336410323 · Psychiatry Physician · Wallingford, CT
Ronald Marcus, MD is a Psychiatry Physician provider in Wallingford, CT (NPI 1336410323).
Provider details
- NPI number
- 1336410323
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 026822 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(80/100 index)
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
5 Research Pkwy
Wallingford, CT 06492-1951
Phone: (203) 677-6763
Approximate (ZIP-level) locationGet directions
Mailing address
99 W Meadow Rd
Hamden, CT 06518-1124
Registry dates
- Enumerated
- 2012-01-23
- Last updated
- 2012-01-23
Frequently asked questions
- What is Ronald Marcus's NPI number?
- Ronald Marcus's National Provider Identifier (NPI) is 1336410323, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronald Marcus's specialty?
- Ronald Marcus is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Ronald Marcus located?
- Ronald Marcus's practice location on file with NPPES is 5 Research Pkwy, Wallingford, CT 06492-1951.
- What is Ronald Marcus's phone number?
- The practice phone number listed in the NPPES registry for Ronald Marcus is (203) 677-6763.
- Is Ronald Marcus's NPI active?
- Yes — Ronald Marcus's NPI (1336410323) is active in the NPPES registry as of the last update on 2012-01-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.