Gregory Berk, MD
Hematology & Oncology Physician · Dover, MA
Gregory Berk, MD is a hematology & oncology physician with a practice address in Dover, Massachusetts, and NPI 1306208905, issued on Mar 23, 2016. Check the license on the Massachusetts Board of Registration in Medicine; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Gregory Berk
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- Practice location
- 133 Claybrook RD, Dover, MA 02030
- Phone
- (925) 719-3531
- Enumerated
- Mar 23, 2016
- Entity
- Type 1 · individual
Verify Gregory Berk in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in MedicineCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
1 hematology & oncology physician records list a Dover practice address
They are 1 of the 35 NPPES records with a Dover practice address, and 385 hematology & oncology physician records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other hematology & oncology physician records in Massachusetts
- Gregory Abel, MDBoston, MA1285611954
- Rachel Abelman, MDBoston, MA1255821617
- Karim Abou-Nassar, MDBoston, MA1366770745
- Inas Abuali, M.D.Boston, MA1952659971
- Maureen Achebe, MD, MPHBoston, MA1407955172
- Archana Agarwal, MDSpringfield, MA1548592165
- Rasmia Ahmed, MDFramingham, MA1568409936
- Hanny Al-Samkari, MDBoston, MA1669765988
- Syed Ali, MDSpringfield, MA1174751267
- Tasneem Ali, M.D.Worcester, MA1629036553
Common questions
What is Gregory Berk, MD's NPI number?
Gregory Berk, MD's National Provider Identifier (NPI) is 1306208905, issued on Mar 23, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Berk, MD located?
The NPPES record lists a practice address at 133 Claybrook RD, Dover, MA, 02030. Phone: (925) 719-3531. Providers update this record themselves, so call before visiting.
How can I verify Gregory Berk, MD's license?
Search the Massachusetts Board of Registration in Medicine at https://www.mass.gov/orgs/board-of-registration-in-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.