Perumal Raja Thiyagarajan MD Internal Medicine PLLC
NPI 1295694727 · Internal Medicine Physician · Melville, NY
Perumal Raja Thiyagarajan MD Internal Medicine PLLC is a Internal Medicine Physician organization in Melville, NY (NPI 1295694727).
Provider details
- NPI number
- 1295694727
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Perumal Thiyagarajan, Owner(516) 800-5012
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in 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
- 2026-01-20
- Last updated
- 2026-05-06
- Certified
- 2026-05-06
Frequently asked questions
- What is Perumal Raja Thiyagarajan MD Internal Medicine PLLC's NPI number?
- Perumal Raja Thiyagarajan MD Internal Medicine PLLC's National Provider Identifier (NPI) is 1295694727, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Perumal Raja Thiyagarajan MD Internal Medicine PLLC?
- Perumal Raja Thiyagarajan MD Internal Medicine PLLC is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Perumal Raja Thiyagarajan MD Internal Medicine PLLC located?
- Perumal Raja Thiyagarajan MD Internal Medicine PLLC's practice location on file with NPPES is 201 Old Country Rd Ste 170, Melville, NY 11747-2732.
- What is Perumal Raja Thiyagarajan MD Internal Medicine PLLC's phone number?
- The practice phone number listed in the NPPES registry for Perumal Raja Thiyagarajan MD Internal Medicine PLLC is (631) 271-9151.
- Who is the authorized official for Perumal Raja Thiyagarajan MD Internal Medicine PLLC?
- The authorized official listed on Perumal Raja Thiyagarajan MD Internal Medicine PLLC's NPPES record is Perumal Thiyagarajan, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Perumal Raja Thiyagarajan MD Internal Medicine PLLC's NPI active?
- Yes — Perumal Raja Thiyagarajan MD Internal Medicine PLLC's NPI (1295694727) is active in the NPPES registry as of the last update on 2026-05-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.