NPPES file of Aug 9, 2026

Michael T. O'Connell, M.D.

Internal Medicine Physician · Tewksbury, MA

Michael T. O'Connell, M.D. is an internal medicine physician with a practice address in Tewksbury, Massachusetts, and NPI 1174543862, issued on Jul 19, 2006. Check the license (Massachusetts 55791, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1174543862
Name
Michael T. O'Connell
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
55791 MA
Self-reported in NPPES; status is on the state search
Practice location
365 East St, Tewksbury, MA 01876
Phone
(978) 851-7321
Enumerated
Jul 19, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(978) 858-3795
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →

Also registered at 365 East St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Maame Alert, RNRegistered Nurse1538940564
  2. Wellington AmparoPeer Specialist1801788492
  3. Brenda AngelCase Manager/Care Coordinator1114417870
  4. Diana Arena, D.O.Internal Medicine Physician1609986074
  5. Sherin Aygun, BAAddiction (Substance Use Disorder) Counselor1114498227
  6. Shannon BarrettAddiction (Substance Use Disorder) Counselor1417451378

Verify Michael T. O'Connell in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 55791    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Michael T. O'Connell among 6,825 internal medicine physician records in Massachusetts

Michael T. O'Connell, 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 not. Its NPI, issued in 2006, is newer than 12% of them.

  • NPI issued2006 · 12% of these records are older, 54% newer
  • In a Medicare fileNo · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 60% of these records are
  • Record last updated2007 · 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).

8 internal medicine physician records list a practice address in Tewksbury

They are 8 of the 423 NPPES records with a practice address in Tewksbury, and 6,825 internal medicine physician records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 6,825 in Massachusetts → Every provider in Tewksbury → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Diana Arena, D.O.Tewksbury, MA 018761609986074
  2. Cindy Cheng, M.D.Tewksbury, MA 018761114989613
  3. Shirish Desai, M.D.Tewksbury, MA 018761467488601
  4. Paul Geraldez, M.D.Tewksbury, MA 018761457342958
  5. Rosemary Janas, FNPTewksbury, MA 018761104978980
  6. James Kuin, M.D.Tewksbury, MA 018761972564995
  7. Kali Scott, DVMTewksbury, MA 018761316629991
  8. Davis Bu, M.D.Wakefield, MA 018801154303550

Common questions

What is Michael T. O'Connell, M.D.'s NPI number?

Michael T. O'Connell, M.D.'s National Provider Identifier (NPI) is 1174543862, issued on Jul 19, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael T. O'Connell, M.D. located?

The NPPES record lists a practice address at 365 East St, Tewksbury, MA, 01876. Phone: (978) 851-7321. Providers update this record themselves, so call before visiting.

How can I verify Michael T. O'Connell, M.D.'s license?

NPPES lists Massachusetts license number 55791, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.