Elisabeth Ann Merchant, M.D.
Infectious Disease Physician · Boston, MA
Elisabeth Ann Merchant, M.D. is an infectious disease physician with a practice address in Boston, Massachusetts, and NPI 1275912867, issued on May 28, 2015. Check the license (Massachusetts 274032, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Elisabeth Ann Merchant
- Credential
- M.D.
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- 274032 MA
Self-reported in NPPES; status is on the state search - Practice location
- 800 Washington St, Boston, MA 02111
- Phone
- (617) 636-5000
- Enumerated
- May 28, 2015
- Record last updated
- Nov 15, 2024
- Medicare enrollment
- Enrolled (PECOS I20180611002094); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 2015
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 487 in Massachusetts → Look up another NPI →
Also registered at 800 Washington St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jeffrey Aalberg, MD, MPHSurgery Physician1326788027
- Omer Abbak, PHARMDPharmacist1114500337
- Aya Abdelnaser, MDStudent in an Organized Health Care Education/Training Program1770425373
- Marie Elise Abi Antoun, MDObstetrics & Gynecology Physician1356042626
- Ahmad AboalfarajSurgery Physician1538517651
- Tala Abu Samaan, MDStudent in an Organized Health Care Education/Training Program1376386250
Verify Elisabeth Ann Merchant in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 274032Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% fewer Medicare Part D claims than the average infectious disease physician in 2024
506 Medicare Part D claims for 71 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 39% of claims. 11 claims were for opioids.
Most prescribed
- Biktarvy54 claims
- Tivicay53 claims
- Doxycycline Hyclate28 claims
- Atorvastatin Calcium20 claims
- Pifeltro20 claims
- Albuterol Sulfate Hfa16 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
- Pratt Medical Group IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Elisabeth Ann Merchant among 487 infectious disease physician records in Massachusetts
Elisabeth Ann Merchant, M.D. is one of 487 infectious disease physician records with a practice address in Massachusetts. 69% 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 84% of them.
- NPI issued2015 · 84% of these records are older, 14% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2015 · median 2003 among the 296 with a school on file
- Record last updated2024 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in Massachusetts
There are 487 infectious disease physician records in Massachusetts.
All 487 in Massachusetts → Every provider in Boston → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Geneve Allison, M.D.Boston, MA 021111457361933
- Robert Arbeit, M.D.Boston, MA 021111467408401
- Jorge Barinaga, M.D.Boston, MA 021111942257688
- Helen Boucher, MDBoston, MA 021111821024589
- Anne Marie Chomat, M.D.Boston, MA 021111942233218
- Jennifer Chow, M.D., M.S.Boston, MA 021111750339842
- Michael Jordan, M.D.Boston, MA 021111679506596
- Laura Kogelman, MDBoston, MA 021111063528768
Common questions
What is Elisabeth Ann Merchant, M.D.'s NPI number?
Elisabeth Ann Merchant, M.D.'s National Provider Identifier (NPI) is 1275912867, issued on May 28, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Elisabeth Ann Merchant, M.D. located?
The NPPES record lists a practice address at 800 Washington St, Boston, MA, 02111. Phone: (617) 636-5000. Providers update this record themselves, so call before visiting.
How can I verify Elisabeth Ann Merchant, M.D.'s license?
NPPES lists Massachusetts license number 274032, 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 Elisabeth Ann Merchant, M.D. prescribe under Medicare Part D?
In 2024, Elisabeth Ann Merchant, M.D. had 506 Medicare Part D claims for 71 beneficiaries; the average among infectious disease physician prescribers was 689. 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.