Samson B. Ferm, MD
Gastroenterology Physician · Cambridge, MA
Samson B. Ferm, MD is a gastroenterology physician with a practice address in Cambridge, Massachusetts, and NPI 1255785713, issued on Apr 20, 2016. Check the license (Massachusetts 291614, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Samson B. Ferm
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 291614 MA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Mount Auburn St Ste 414, Cambridge, MA 02138
- Phone
- (617) 864-0503
- Enumerated
- Apr 20, 2016
- Record last updated
- Jun 5, 2024
- Fax
- (617) 441-4033
- Medicare enrollment
- Enrolled (PECOS I20220608002045); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 686 in Massachusetts → Look up another NPI →
Also registered at 300 Mount Auburn St Ste 414
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lawrence Borges, M.D.Gastroenterology Physician1043447519
- Fiona Koshy, CNPFamily Nurse Practitioner1952020547
- Sara Lafreniere, PAMedical Physician Assistant1285243311
- Kathryn Moore, PA-CMedical Physician Assistant1699307538
Verify Samson B. Ferm in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 291614Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average gastroenterology physician in 2024
419 Medicare Part D claims for 246 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.
Most prescribed
- Sod Sulf-Potass Sulf-Mag Sulf193 claims
- Omeprazole50 claims
- Creon25 claims
- Esomeprazole Magnesium16 claims
- Famotidine16 claims
- Peg 3350-Electrolyte16 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
- Mount Auburn Professional Services IncCambridge, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Samson B. Ferm among 686 gastroenterology physician records in Massachusetts
Samson B. Ferm, MD is one of 686 gastroenterology physician records with a practice address in Massachusetts. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 83% of them.
- NPI issued2016 · 83% of these records are older, 13% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2016 · median 2004 among the 491 with a school on file
- Record last updated2024 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Massachusetts
There are 686 gastroenterology physician records in Massachusetts.
All 686 in Massachusetts → Every provider in Cambridge → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Julio Ayala, MDCambridge, MA 021381104883347
- Lawrence Borges, M.D.Cambridge, MA 021381043447519
- John Chobanian, M.D.Cambridge, MA 021381518040526
- Elena Fradkov, M.D.Cambridge, MA 021381326438953
- Torre Morgan, MDCambridge, MA 021381851382360
- Frederick Ruymann, MDCambridge, MA 021381568466316
- Sharon Turissini, MDCambridge, MA 021381407942808
- Karim FawazCambridge, MA 021391952338253
Common questions
What is Samson B. Ferm, MD's NPI number?
Samson B. Ferm, MD's National Provider Identifier (NPI) is 1255785713, issued on Apr 20, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Samson B. Ferm, MD located?
The NPPES record lists a practice address at 300 Mount Auburn St Ste 414, Cambridge, MA, 02138. Phone: (617) 864-0503. Providers update this record themselves, so call before visiting.
How can I verify Samson B. Ferm, MD's license?
NPPES lists Massachusetts license number 291614, 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 Samson B. Ferm, MD prescribe under Medicare Part D?
In 2024, Samson B. Ferm, MD had 419 Medicare Part D claims for 246 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.