NPPES file of Aug 9, 2026

Tracy A. Lieu, M.D.

Pediatrics Physician · Chelmsford, MA

Tracy A. Lieu, M.D. is a pediatrics physician with a practice address in Chelmsford, Massachusetts, and NPI 1770562316, issued on Jan 12, 2006. Check the license (Massachusetts 158947, 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
1770562316
Name
Tracy A. Lieu
Credential
M.D.
Primary taxonomy
Pediatrics Physician 208000000X
License number
158947 MA
Self-reported in NPPES; status is on the state search
Practice location
228 Billerica RD, Chelmsford, MA 01824
Phone
(978) 250-6300
Enumerated
Jan 12, 2006
Record last updated
Dec 13, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid ID
0137201 MA
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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Also registered at 228 Billerica RD

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

  1. Katherine AeschlimanAdvanced Practice Midwife1295755858
  2. Susan Albee, RPHPharmacist1932194560
  3. Sonia Almeida, PAPhysician Assistant1063560357
  4. Michael AyerOptometrist1770649584
  5. Alina Bahlavouni, DOPediatrics Physician1508361064
  6. Caroline Bevona, M.D.Dermatology Physician1245225044

Verify Tracy A. Lieu 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 158947
    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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Tracy A. Lieu among 2,628 pediatrics physician records in Massachusetts

Tracy A. Lieu, M.D. is one of 2,628 pediatrics physician records with a practice address in Massachusetts. 25% 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 16% of them.

  • NPI issued2006 · 16% of these records are older, 48% newer
  • In a Medicare fileNo · 25% of these records are
  • In the CMS Doctors and Clinicians fileNo · 12% of these records are
  • Record last updated2021 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

24 pediatrics physician records list a practice address in Chelmsford

They are 24 of the 937 NPPES records with a practice address in Chelmsford, and 2,628 pediatrics physician records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 pediatrics physician records with the nearest ZIP codes

  1. Sarah Barnett, MDChelmsford, MA 018241922078880
  2. Jennifer Delikat, M.D.Chelmsford, MA 018241922086826
  3. Mary Ann Durkin, NPChelmsford, MA 018241518074228
  4. Jaymi Formaggio, M.D.Chelmsford, MA 018241730135211
  5. Mark Gilchrist, MDChelmsford, MA 018241184625428
  6. James Glauber, M.D.Chelmsford, MA 018241699753202
  7. Laura Lee, M.D.Chelmsford, MA 018241932188414
  8. Eric Meikle, MDChelmsford, MA 018241427136563

Common questions

What is Tracy A. Lieu, M.D.'s NPI number?

Tracy A. Lieu, M.D.'s National Provider Identifier (NPI) is 1770562316, issued on Jan 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Tracy A. Lieu, M.D. located?

The NPPES record lists a practice address at 228 Billerica RD, Chelmsford, MA, 01824. Phone: (978) 250-6300. Providers update this record themselves, so call before visiting.

How can I verify Tracy A. Lieu, M.D.'s license?

NPPES lists Massachusetts license number 158947, 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.

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.