NPPES file of Aug 9, 2026

Alice L. Zacarian, M.D.

Internal Medicine Physician · Waltham, MA

Alice L. Zacarian, M.D. is an internal medicine physician with a practice address in Waltham, Massachusetts, and NPI 1871580597, issued on Sep 29, 2005. Check the license (Massachusetts 158523, 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
1871580597
Name
Alice L. Zacarian
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
158523 MA
Self-reported in NPPES; status is on the state search
Practice location
355 Waverley Oaks RD, Waltham, MA 02452
Phone
(781) 647-6920
Enumerated
Sep 29, 2005
Record last updated
Mar 13, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(781) 891-0056
Medicaid ID
3192741 MA
Medicare enrollment
Enrolled (PECOS I20090122000092); accepts Medicare assignment
Medical or professional school
Boston University School Of Medicine, 1996
Telehealth
Offers telehealth (CMS)
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 355 Waverley Oaks RD

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

  1. Matthew Fickie, MDInternal Medicine Physician1891897757
  2. Chuanyun Gao, MDEndocrinology, Diabetes & Metabolism Physician1609070267
  3. Sarah Larocque, R.D.Registered Dietitian1326394289
  4. Amanda McSweeney, C.N.M.Advanced Practice Midwife1043410590
  5. Elissa Stecker, M.D,Internal Medicine Physician1295056000

Verify Alice L. Zacarian 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 158523
    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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23% more Medicare Part D claims than the average internal medicine physician in 2024

3,902 Medicare Part D claims for 329 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 15 claims were for opioids.

  1. Alice Zacarian3,902
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium367 claims
  2. Amlodipine Besylate315 claims
  3. Lisinopril205 claims
  4. Levothyroxine Sodium199 claims
  5. Metoprolol Succinate160 claims
  6. Rosuvastatin Calcium160 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.

Bills Medicare through one group practice

  1. Mount Auburn Professional Services IncLexington, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Alice L. Zacarian among 6,825 internal medicine physician records in Massachusetts

Alice L. Zacarian, 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 88% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1996 · median 2004 among the 4,103 with a school on file
  • Record last updated2014 · 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).

32 internal medicine physician records list a practice address in Waltham

They are 32 of the 2,111 NPPES records with a practice address in Waltham, and 6,825 internal medicine physician records in Massachusetts.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Rachel Ackerman, MDWaltham, MA 024521376923094
  2. Mark Drews, MDWaltham, MA 024521184693616
  3. Matthew Fickie, MDWaltham, MA 024521891897757
  4. David Margulies, M.D.Waltham, MA 024521942344635
  5. Julie Pfeffer, MDWaltham, MA 024521083243943
  6. Philip Reilly, M.D.Waltham, MA 024521871780064
  7. Jane Silva, M.D.North Waltham, MA 024521003853797
  8. Elissa Stecker, M.D,Waltham, MA 024521295056000

Common questions

What is Alice L. Zacarian, M.D.'s NPI number?

Alice L. Zacarian, M.D.'s National Provider Identifier (NPI) is 1871580597, issued on Sep 29, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Alice L. Zacarian, M.D. located?

The NPPES record lists a practice address at 355 Waverley Oaks RD, Waltham, MA, 02452. Phone: (781) 647-6920. Providers update this record themselves, so call before visiting.

How can I verify Alice L. Zacarian, M.D.'s license?

NPPES lists Massachusetts license number 158523, 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 Alice L. Zacarian, M.D. prescribe under Medicare Part D?

In 2024, Alice L. Zacarian, M.D. had 3,902 Medicare Part D claims for 329 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.