Sonia M. Seng, MD
Hematology & Oncology Physician · Fall River, MA
Sonia M. Seng, MD is a hematology & oncology physician with a practice address in Fall River, Massachusetts, and NPI 1366629719, issued on Jan 29, 2008. Check the license (Massachusetts 249382, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Sonia M. Seng
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- 249382 MA
241918 NY
Self-reported in NPPES; status is on the state search - Practice location
- 506 Prospect Street, Fall River, MA 02720
- Phone
- (508) 973-7888
- Enumerated
- Jan 29, 2008
- Record last updated
- Apr 27, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (508) 973-7934
- Medicare enrollment
- Enrolled (PECOS I20111011000576); accepts Medicare assignment
- Medical or professional school
- Albany Medical College Of Union University, 2004
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 461 in Massachusetts → Look up another NPI →
Also registered at 506 Prospect Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tushar Kumar, MDRadiation Oncology Physician1962623843
- Mark Shparber, M.D.Hematology & Oncology Physician1982614160
Verify Sonia M. Seng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 249382Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% more Medicare Part D claims than the average hematology & oncology physician in 2024
1,067 Medicare Part D claims for 214 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims. 65 claims were for opioids.
Most prescribed
- Tamoxifen Citrate93 claims
- Letrozole92 claims
- Eliquis74 claims
- Dexamethasone50 claims
- Allopurinol47 claims
- Oxycodone Hcl45 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.
Industry payments in 2024: $22.39
1 payment: food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Southcoast Physicians Group IncNew Bedford, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sonia M. Seng among 461 hematology & oncology physician records in Massachusetts
Sonia M. Seng, MD is one of 461 hematology & oncology 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 2008, is newer than 61% of them.
- NPI issued2008 · 61% of these records are older, 34% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2004 · median 2004 among the 303 with a school on file
- Record last updated2020 · 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 207RH0003X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Massachusetts
There are 461 hematology & oncology physician records in Massachusetts.
All 461 in Massachusetts → Every provider in Fall River → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Therese Mulvey, M.D.Fall River, MA 027201982687182
- Ruwan Parakrama, MDFall River, MA 027201578190120
- Mark Shparber, M.D.Fall River, MA 027201982614160
- Elizabeth Blanchard, MDFairhaven, MA 027191134198989
- Richard Hellwig, MDFall River, MA 027211164476065
- Susan Kim, MDFairhaven, MA 027191891985990
- Harry Matelski, MDFairhaven, MA 027191699737874
- Marilyn Miller, MDFall River, MA 027211245286392
Common questions
What is Sonia M. Seng, MD's NPI number?
Sonia M. Seng, MD's National Provider Identifier (NPI) is 1366629719, issued on Jan 29, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Sonia M. Seng, MD located?
The NPPES record lists a practice address at 506 Prospect Street, Fall River, MA, 02720. Phone: (508) 973-7888. Providers update this record themselves, so call before visiting.
How can I verify Sonia M. Seng, MD's license?
NPPES lists Massachusetts license number 249382, 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 Sonia M. Seng, MD prescribe under Medicare Part D?
In 2024, Sonia M. Seng, MD had 1,067 Medicare Part D claims for 214 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.