NPPES file of Aug 9, 2026

Larissa Lucas

Internal Medicine Physician · Cambridge, MA

Larissa Lucas is an internal medicine physician with a practice address in Cambridge, Massachusetts, and NPI 1205999752, issued on Dec 18, 2006. Check the license (Massachusetts 208147, 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
1205999752
Name
Larissa Lucas
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
208147 MA
Self-reported in NPPES; status is on the state search
Practice location
237 Hampshire St, Cambridge, MA 02139
Phone
(617) 575-5570
Enumerated
Dec 18, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20050829000587); accepts Medicare assignment
Medical or professional school
University Of Massachusetts Medical School, 1999
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 237 Hampshire St

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

  1. Elvira Aronzon, PA-CPhysician Assistant1851358279
  2. Henrietta BarnesInternal Medicine Physician1245393701
  3. Becky Bjorkman, R.N.Registered Nurse1841797487
  4. Laura Delaney, R.N.Registered Nurse1679910947
  5. Yelizaveta DimantClinical Social Worker1568832749
  6. David Elvin, M.D.Internal Medicine Physician1245250661

Verify Larissa Lucas 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 208147
    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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5.0 times the Medicare Part D claims of the average internal medicine physician in 2024

15,945 Medicare Part D claims for 414 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims. 29 claims were for opioids.

  1. Larissa Lucas15,945
  2. Specialty average3,176

Most prescribed

  1. Eliquis1,020 claims
  2. Mirtazapine661 claims
  3. Levothyroxine Sodium650 claims
  4. Atorvastatin Calcium631 claims
  5. Furosemide630 claims
  6. Trazodone Hcl551 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. Mass General Brigham Medical Group Northern Massachusetts IncPeabody, MA

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

Larissa Lucas among 6,825 internal medicine physician records in Massachusetts

Larissa Lucas 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
  • Graduated1999 · median 2004 among the 4,103 with a school on file
  • 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).

300 internal medicine physician records list a practice address in Cambridge

They are 300 of the 5,145 NPPES records with a practice address in Cambridge, and 6,825 internal medicine physician records in Massachusetts.

The 8 internal medicine physician records with the nearest ZIP codes

  1. David Baron, MDCambridge, MA 021391376503318
  2. John Brusch, MDCambridge, MA 021391639138449
  3. David Diamond, MDCambridge, MA 021391265411664
  4. Leigh Firn, MDCambridge, MA 021391194706507
  5. Agnes Graves, M.D.Cambridge, MA 021391932160934
  6. Howard Heller, MDCambridge, MA 021391508856287
  7. Michael Kane, MDCambridge, MA 021391376524769
  8. William Kettyle, MDCambridge, MA 021391306823414

Common questions

What is Larissa Lucas's NPI number?

Larissa Lucas's National Provider Identifier (NPI) is 1205999752, issued on Dec 18, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Larissa Lucas located?

The NPPES record lists a practice address at 237 Hampshire St, Cambridge, MA, 02139. Phone: (617) 575-5570. Providers update this record themselves, so call before visiting.

How can I verify Larissa Lucas's license?

NPPES lists Massachusetts license number 208147, 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 Larissa Lucas prescribe under Medicare Part D?

In 2024, Larissa Lucas had 15,945 Medicare Part D claims for 414 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.