Perin Thavaseelan, M.D.
NPI 1861409989 · Internal Medicine Physician · Methuen, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Perin Thavaseelan, M.D. is a Internal Medicine Physician provider in Methuen, MA (NPI 1861409989).
Provider details
- NPI number
- 1861409989
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 55639 (MA)
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
19 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
- 2006-08-02
- Last updated
- 2009-11-24
Frequently asked questions
- What is Perin Thavaseelan's NPI number?
- Perin Thavaseelan's National Provider Identifier (NPI) is 1861409989, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Perin Thavaseelan's specialty?
- Perin Thavaseelan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Perin Thavaseelan located?
- Perin Thavaseelan's practice location on file with NPPES is Pleasant Valley Internists PC, Methuen, MA 01844.
- What is Perin Thavaseelan's phone number?
- The practice phone number listed in the NPPES registry for Perin Thavaseelan is (978) 689-0869.
- Does Perin Thavaseelan accept Medicare?
- Perin Thavaseelan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Perin Thavaseelan's NPI active?
- Yes — Perin Thavaseelan's NPI (1861409989) is active in the NPPES registry as of the last update on 2009-11-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.