Sonia Cohen, MD,PHD
Surgical Oncology Physician · Boston, MA
Sonia Cohen, MD,PHD is a surgical oncology physician with a practice address in Boston, Massachusetts, and NPI 1033557756, issued on Jun 5, 2013. Check the license (Massachusetts 284433, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Sonia Cohen
- Credential
- MD,PHD
- Primary taxonomy
- Surgical Oncology Physician 2086X0206X
- License numbers
- 284433 MA
L-255653 MA
Self-reported in NPPES; status is on the state search - Practice location
- Massachusetts General Hospital, Boston, MA 02114
- Phone
- (617) 726-2800
- Enumerated
- Jun 5, 2013
- Record last updated
- Sep 3, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20201104000867); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 2013
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest surgical oncology physician records → All 61 in Massachusetts → Look up another NPI →
Also registered at Massachusetts General Hospital
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Sonia Cohen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 284433Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average surgical oncology physician in 2024
18 Medicare Part D claims for 16 beneficiaries, against an average of 87 among the 1,237 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 13 claims were for opioids.
Most prescribed
- Oxycodone Hcl11 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 2 group practices
- Massachusetts General Physicians Organization IncBoston, MA
- The General Hospital CorporationWaltham, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sonia Cohen among 61 surgical oncology physician records in Massachusetts
Sonia Cohen, MD,PHD is one of 61 surgical oncology 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 2013, is newer than 77% of them.
- NPI issued2013 · 77% of these records are older, 16% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2013 · median 2006 among the 43 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 2086X0206X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgical Oncology Physician providers in Massachusetts
There are 61 surgical oncology physician records in Massachusetts.
All 61 in Massachusetts → Every provider in Boston → Surgical Oncology Physician nationwide →
The 8 surgical oncology physician records with the nearest ZIP codes
- Genevieve Boland, MD, PHDBoston, MA 021141699801019
- Jonathan Greer, M.D.Boston, MA 021141194985614
- Kari Kansal, M.D.Boston, MA 021141114181534
- Howard Kaufman, M.D.Boston, MA 021141376627109
- Nicole Look-Hong, MD, MSCBoston, MA 021141003129693
- James Luo, MDBoston, MA 021141205367984
- Maureen McEvoy, MDBoston, MA 021141548493919
- Anvy NguyenBoston, MA 021141649409442
Common questions
What is Sonia Cohen, MD,PHD's NPI number?
Sonia Cohen, MD,PHD's National Provider Identifier (NPI) is 1033557756, issued on Jun 5, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Sonia Cohen, MD,PHD located?
The NPPES record lists a practice address at Massachusetts General Hospital, Boston, MA, 02114. Phone: (617) 726-2800. Providers update this record themselves, so call before visiting.
How can I verify Sonia Cohen, MD,PHD's license?
NPPES lists Massachusetts license number 284433, 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 Cohen, MD,PHD prescribe under Medicare Part D?
In 2024, Sonia Cohen, MD,PHD had 18 Medicare Part D claims for 16 beneficiaries; the average among surgical oncology physician prescribers was 87. 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.