Perin Sorab Thavaseelan, M.D.
Internal Medicine Physician · Methuen, MA
Perin Sorab Thavaseelan, M.D. is an internal medicine physician with a practice address in Methuen, Massachusetts, and NPI 1861409989, issued on Aug 2, 2006. Check the license (Massachusetts 55639, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Perin Sorab Thavaseelan
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 55639 MA
Self-reported in NPPES; status is on the state search - Practice location
- Pleasant Valley Internists PC, Methuen, MA 01844
- Phone
- (978) 689-0869
- Enumerated
- Aug 2, 2006
- Record last updated
- Nov 24, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (978) 689-3096
- Medicaid ID
- 0171557 MA
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Verify Perin Sorab Thavaseelan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 55639Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
41 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Perin Sorab Thavaseelan among 6,825 internal medicine physician records in Massachusetts
Perin Sorab Thavaseelan, M.D. is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2009 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
15 internal medicine physician records list a practice address in Methuen
They are 15 of the 881 NPPES records with a practice address in Methuen, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Methuen → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Tricia Allman, MDMethuen, MA 018441720081466
- Jamshed Anvari, M.D.Methuen, MA 018441821124405
- Emma Babayan, MDMethuen, MA 018441861460016
- Peter Choo, M.D.Methuen, MA 018441346277886
- Sharda Kaul, M.D.Methuen, MA 018441427068097
- Leo Lane, D.O.Methuen, MA 018441770570426
- Linda Lewallen, MDMethuen, MA 018441437224201
- Samuel Maghuyop, MDMethuen, MA 018441265648810
Common questions
What is Perin Sorab Thavaseelan, M.D.'s NPI number?
Perin Sorab Thavaseelan, M.D.'s National Provider Identifier (NPI) is 1861409989, issued on Aug 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Perin Sorab Thavaseelan, M.D. located?
The NPPES record lists a practice address at Pleasant Valley Internists PC, Methuen, MA, 01844. Phone: (978) 689-0869. Providers update this record themselves, so call before visiting.
How can I verify Perin Sorab Thavaseelan, M.D.'s license?
NPPES lists Massachusetts license number 55639, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Perin Sorab Thavaseelan, M.D. prescribe under Medicare Part D?
In 2024, Perin Sorab Thavaseelan, M.D. had 41 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.