Simon Ovanessian, MD
NPI 1376585091 · Psychiatry Physician · Westborough, MA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Simon Ovanessian, MD is a Psychiatry Physician provider in Westborough, MA (NPI 1376585091).
Provider details
- NPI number
- 1376585091
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 232261 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$15,665 across 42 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-10
- Last updated
- 2024-09-03
- Certified
- 2024-09-03
Frequently asked questions
- What is Simon Ovanessian's NPI number?
- Simon Ovanessian's National Provider Identifier (NPI) is 1376585091, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Simon Ovanessian's specialty?
- Simon Ovanessian is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Simon Ovanessian located?
- Simon Ovanessian's practice location on file with NPPES is 300 Friberg Pkwy, Westborough, MA 01581-3900.
- What is Simon Ovanessian's phone number?
- The practice phone number listed in the NPPES registry for Simon Ovanessian is (508) 329-6300.
- Does Simon Ovanessian accept Medicare?
- Simon Ovanessian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Simon Ovanessian's NPI active?
- Yes — Simon Ovanessian's NPI (1376585091) is active in the NPPES registry as of the last update on 2024-09-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.