NPPES file of Aug 9, 2026

Robyn Pauline Thom, M.D.

Psychiatry Physician · Lexington, MA

Robyn Pauline Thom, M.D. is a psychiatry physician with a practice address in Lexington, Massachusetts, and NPI 1477931160, issued on May 13, 2015. Check the license (Massachusetts 274409, 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
1477931160
Name
Robyn Pauline Thom
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
274409 MA
Self-reported in NPPES; status is on the state search
Practice location
1 Maguire RD, Lexington, MA 02421
Phone
(781) 860-1700
Enumerated
May 13, 2015
Record last updated
Mar 25, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20200512002232); accepts Medicare assignment
Medical or professional school
Harvard Medical School, 2018
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 1 Maguire RD

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

  1. Yvonne Asher, MAClinical Psychologist1376066878
  2. Sarah BolandStudent in an Organized Health Care Education/Training Program1508650086
  3. Jessica Flowers, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1811665938
  4. Stephanie FritzStudent in an Organized Health Care Education/Training Program1104237197
  5. Rachel GoldinPsychologist1033564885
  6. Emily GuyPsychologist1033078506

Verify Robyn Pauline Thom 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 274409
    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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57% fewer Medicare Part D claims than the average psychiatry physician in 2024

427 Medicare Part D claims for 39 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. Robyn Thom427
  2. Specialty average1,000

Most prescribed

  1. Buspirone Hcl49 claims
  2. Lorazepam32 claims
  3. Aripiprazole30 claims
  4. Clozapine30 claims
  5. Topiramate26 claims
  6. Olanzapine25 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. Massachusetts General Physicians Organization IncLexington, MA

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

Robyn Pauline Thom among 2,736 psychiatry physician records in Massachusetts

Robyn Pauline Thom, M.D. is one of 2,736 psychiatry physician records with a practice address in Massachusetts. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 78% of them.

  • NPI issued2015 · 78% of these records are older, 19% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileYes · 45% of these records are
  • Graduated2018 · median 2005 among the 1,219 with a school on file
  • Record last updated2021 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

29 psychiatry physician records list a practice address in Lexington

They are 29 of the 1,467 NPPES records with a practice address in Lexington, and 2,736 psychiatry physician records in Massachusetts.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Christina Amerault, M.D.Lexington, MA 024211649702937
  2. Amy Banks, M.D.Lexington, MA 024211033166772
  3. Robert Berezin, M.D.Lexington, MA 024211477618536
  4. Ellen Cohen, M.D.Lexington, MA 024211770672800
  5. Mackenzie Davis, MDLexington, MA 024211548897887
  6. Timothy Dugan, MDLexington, MA 024211073607396
  7. Theo Manschreck, MDLexington, MA 024211700867595
  8. Denise Nagel, M.D.Lexington, MA 024211548450679

Common questions

What is Robyn Pauline Thom, M.D.'s NPI number?

Robyn Pauline Thom, M.D.'s National Provider Identifier (NPI) is 1477931160, issued on May 13, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Robyn Pauline Thom, M.D. located?

The NPPES record lists a practice address at 1 Maguire RD, Lexington, MA, 02421. Phone: (781) 860-1700. Providers update this record themselves, so call before visiting.

How can I verify Robyn Pauline Thom, M.D.'s license?

NPPES lists Massachusetts license number 274409, 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 Robyn Pauline Thom, M.D. prescribe under Medicare Part D?

In 2024, Robyn Pauline Thom, M.D. had 427 Medicare Part D claims for 39 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.