Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Perumal Raja Thiyagarajan MD Internal Medicine PLLC

Organization Internal Medicine Physician · NPI 1295694727

Perumal Raja Thiyagarajan MD Internal Medicine PLLC is an Internal Medicine Physician in Melville, New York. Registered with an NPI since 2026.

In the registry since
2026
What do these letters mean?
PLLC — Professional limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

201 Old Country Rd Ste 170
Melville, NY 11747-2732
Phone: (631) 271-9151
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X

Record details

NPI number1295694727
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Perumal Thiyagarajan — Owner · (516) 800-5012
NPI enumeratedJanuary 20, 2026
Last updated in NPPESMay 6, 2026
Certification dateMay 6, 2026
Mailing address201 Old Country Rd Ste 170, Melville, NY 11747-2732

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