NPPES file of Aug 9, 2026

Tanya Zouzas, DO

Internal Medicine Physician · Chelmsford, MA

Tanya Zouzas, DO is an internal medicine physician with a practice address in Chelmsford, Massachusetts, and NPI 1952310302, issued on Aug 5, 2006. Check the license (Massachusetts 208471, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1952310302
Name
Tanya Zouzas
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
208471 MA
Self-reported in NPPES; status is on the state search
Practice location
227 Chelmsford St, Chelmsford, MA 01824
Phone
(978) 250-0032
Enumerated
Aug 5, 2006
Record last updated
Jul 19, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(978) 256-1348
Medicaid ID
9758488 MA
Medicare enrollment
Enrolled (PECOS I20120116000054); accepts Medicare assignment
Medical or professional school
University Of New England, College Of Osteo Medicine, 1997
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 227 Chelmsford St

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

  1. Christiana AduClinical Social Worker1508361254
  2. Nicole BaldwinPsychologist1851182927
  3. Katelyn Filtzer, BACounselor1689592503
  4. Johanna Ford-HuntMental Health Counselor1225877152
  5. Rebecca JohnsonCounselor1881528305
  6. Lauren MacisaacCounselor1982159026

Verify Tanya Zouzas 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 208471
    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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34% fewer Medicare Part D claims than the average internal medicine physician in 2024

2,085 Medicare Part D claims for 234 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Tanya Zouzas2,085
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium320 claims
  2. Lisinopril161 claims
  3. Levothyroxine Sodium127 claims
  4. Hydrochlorothiazide91 claims
  5. Losartan Potassium82 claims
  6. Amlodipine Besylate77 claims

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.

Tanya Zouzas among 6,825 internal medicine physician records in Massachusetts

Tanya Zouzas, DO 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 fileYes · 60% of these records are
  • Graduated1997 · median 2004 among the 4,103 with a school on file
  • Record last updated2010 · 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).

34 internal medicine physician records list a practice address in Chelmsford

They are 34 of the 937 NPPES records with a practice address in Chelmsford, and 6,825 internal medicine physician records in Massachusetts.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Shamim Dahod, M.D.Chelmsford, MA 018241710971379
  2. Karen Dasilva, M.D.Chelmsford, MA 018241851364889
  3. Richard Deamicis, M.D.Chelmsford, MA 018241801865233
  4. Milton Drake, M.D.Chelmsford, MA 018241750354700
  5. Damian FolchChelmsford, MA 018241225002066
  6. Jorge Gonzalez, M.D.Chelmsford, MA 018241821081209
  7. Raj Gupta, M.D.Chelmsford, MA 018241346215605
  8. Wen Yee Lee, M.D.Chelmsford, MA 018241396701777

Common questions

What is Tanya Zouzas, DO's NPI number?

Tanya Zouzas, DO's National Provider Identifier (NPI) is 1952310302, issued on Aug 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Tanya Zouzas, DO located?

The NPPES record lists a practice address at 227 Chelmsford St, Chelmsford, MA, 01824. Phone: (978) 250-0032. Providers update this record themselves, so call before visiting.

How can I verify Tanya Zouzas, DO's license?

NPPES lists Massachusetts license number 208471, 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 Tanya Zouzas, DO prescribe under Medicare Part D?

In 2024, Tanya Zouzas, DO had 2,085 Medicare Part D claims for 234 beneficiaries; 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.