Dr. Perin Sorab Thavaseelan, MD
- Medicare services, 2021
- 670
- Part D claims, 2024
- 41
- Industry payments
- $2,739
- Affiliated sites
- 2
- Medical groups
- 2
- Practice address
- 60 E St 3300 Methuen Obgyn, Methuen, MA 01844-4547
- Practice phone
- Call (978) 685-9440
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Steward Physician Network, INC
Multi-specialty group site · Methuen, Massachusetts
Find Dr. Thavaseelan's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Perin Sorab Thavaseelan is an internist in Woburn, Massachusetts
Dr. Thavaseelan practices at Steward Physician Network, INC in Methuen, Massachusetts.
Dr. Thavaseelan's NPI, 1861409989, was assigned on August 2, 2006. Dr. Thavaseelan holds Massachusetts license 55639.
- NPI
- 1861409989NPI Registry (opens in a new tab)
- NPI enumeration date
- August 2, 2006
- NPI status
- Active
- Practice phone
- (978) 685-9440
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 81
- Medical school graduation
- 1971
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Perin Sorab Thavaseelan practices in Methuen and Woburn
Dr. Thavaseelan's primary practice is Steward Physician Network, INC, at 60 E St 3300 Methuen Obgyn, Methuen, MA 01844-4547. The practice phone is (978) 685-9440. The NPI Registry lists Dr. Thavaseelan's practice address as 400 W Cummings Park, Woburn, MA 01801.
- Steward Physician Network, INCPrimary60 E St 3300 Methuen Obgyn, Methuen, MA 01844-4547Phone(978) 685-9440
- NPI Registry address400 W Cummings Park, Woburn, MA 01801 · Middlesex CountyPhone(978) 689-0869
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Perin Sorab Thavaseelan is affiliated with 2 sites of care and 2 medical groups
Dr. Thavaseelan's primary practice is Steward Physician Network, INC in Methuen, Massachusetts. The medical group on file is Steward Medical Group. Dmand AI also links Dr. Thavaseelan to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Perin Sorab Thavaseelan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Thavaseelan practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Steward Physician Network, INC | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Perin Sorab Thavaseelan is one of 5,528 internists in Massachusetts
Internal medicine is Dr. Thavaseelan's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Thavaseelan is licensed in Massachusetts.
Specialties and state licenses
- Internal medicine, MassachusettsPrimary
Internists near Dr. Thavaseelan
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Perin Sorab Thavaseelan billed Medicare for 670 services in 2021
CMS data shows 670 Medicare services from Dr. Thavaseelan across 10 procedure codes in 2021. Medicare paid $51,890 for them. Every service was in an office.
Dr. Thavaseelan's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 4662021: 41212%
- Other services
- 2020: 2352021: 19617%
- Tests and treatments
- 2020: 622021: 4724%
- Lab and pathology
- 2020: 432021: 1565%
Dr. Thavaseelan compared with the Massachusetts median for internists, 2021
- Dr. Thavaseelan
- Massachusetts median
- Medicare services
- 670vs 43155% above
- Part D claims
- 22vs 40295% below
Medians across 5,369 internists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Thavaseelan's most billed Medicare procedure codes, 2021
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Thavaseelan and other internists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Perin Sorab Thavaseelan's patients have a median age of 63
Across all payers, Dmand AI patient panel data puts Dr. Thavaseelan's median patient age at 63, with 68% women.
Dr. Thavaseelan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women68%
- Men31%
Source: Dmand AI Patient Panel Data
Dr. Perin Sorab Thavaseelan wrote 41 Medicare Part D claims in 2024
In 2024, Dr. Thavaseelan wrote 41 Medicare Part D claims. 90% of them were for generic drugs. CMS names the drug for 22 of them, across 2 drugs with 11 or more claims each, at $372 in total drug cost. In 2022, CMS named 1,086 claims across 33 drugs.
Dr. Thavaseelan's Part D claims by kind of drug, 2024
- Generic37 claims90%
- Brand-name and other4 claims10%
Dr. Thavaseelan's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 1,0862023: 2298%
Drugs named by CMS: 2 in 2023, 33 in 2022.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Perin Sorab Thavaseelan received $2,739 in industry payments from 2016 to 2020
CMS Open Payments shows 204 general payments to Dr. Thavaseelan from 24 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 99% of the total. Boehringer Ingelheim Pharmaceuticals, Inc. paid the most, $587.
General payments to Dr. Thavaseelan by program year, 2016 to 2020
General payments to Dr. Thavaseelan by kind, 2016 to 2020
- Food and beverage$2,72599%
- Education$141%
Companies that paid Dr. Thavaseelan the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Perin Sorab Thavaseelan's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Perin Sorab Thavaseelan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Perin Sorab Thavaseelan's NPI number?
Dr. Perin Sorab Thavaseelan's NPI number is 1861409989. It was assigned on August 2, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Perin Sorab Thavaseelan?
Dr. Perin Sorab Thavaseelan is an internist in Woburn, Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Perin Sorab Thavaseelan practice?
Dr. Thavaseelan practices at 60 E St 3300 Methuen Obgyn, Methuen, MA 01844-4547. Dr. Thavaseelan also practices at 400 W Cummings Park, Woburn, MA 01801. Dr. Thavaseelan's primary practice is Steward Physician Network, INC in Methuen, Massachusetts. Dmand AI also links Dr. Thavaseelan to 1 group practice or clinic and 1 medical group.
What is Dr. Perin Sorab Thavaseelan's office phone number?
The practice phone on file for Dr. Thavaseelan is (978) 685-9440.
What is Dr. Perin Sorab Thavaseelan's medical license number?
Dr. Thavaseelan holds Massachusetts license 55639.
What medical group is Dr. Perin Sorab Thavaseelan part of?
Dr. Thavaseelan is linked to Steward Medical Group. Dmand AI links Dr. Thavaseelan to 1 more medical group.
Does Dr. Perin Sorab Thavaseelan accept Medicare?
Yes. CMS data shows Dr. Thavaseelan billed Medicare for 670 services in 2021.
What services does Dr. Perin Sorab Thavaseelan bill to Medicare?
In 2021, Dr. Thavaseelan's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and medicare service (G0439).
What drugs does Dr. Perin Sorab Thavaseelan prescribe most?
In 2023 Medicare Part D data, Dr. Thavaseelan's most prescribed drugs by claims were Atorvastatin Calcium and Pantoprazole Sodium.
Has Dr. Perin Sorab Thavaseelan received payments from drug or device companies?
CMS Open Payments shows $2,739 in general payments to Dr. Thavaseelan from 24 companies from 2016 to 2020. The largest total came from Boehringer Ingelheim Pharmaceuticals, Inc.
How long has Dr. Perin Sorab Thavaseelan been practicing?
Dr. Thavaseelan graduated from medical school in 1971, 55 years ago.
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