Denis J. Blais, MD
Specialist · South Weymouth, MA
Denis J. Blais, MD is a specialist with a practice address in South Weymouth, Massachusetts, and NPI 1245229335, issued on Oct 20, 2005. Check the license (Massachusetts 59081, as entered in NPPES) with the Massachusetts board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Denis J. Blais
- Credential
- MD
- Primary taxonomy
- Specialist 174400000X
- License number
- 59081 MA
Self-reported in NPPES; status is on the state search - Practice location
- 780 Main St, South Weymouth, MA 02190
- Phone
- (781) 331-4600
- Enumerated
- Oct 20, 2005
- Record last updated
- Apr 12, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (781) 337-5095
- Medicaid ID
- 9718672 MA
- Entity
- Type 1 · individual
8 nearest specialist records → All 1,096 in Massachusetts → Look up another NPI →
Also registered at 780 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jeffrey Bennett, MDSpecialist1811987837
- Kurtus Dafford, M.D.Neurological Surgery Physician1093984742
- Sergio Fefer, M.D.Specialist1053343574
- John Feldman, MDSpecialist1194715110
- Ralph Froio, MDSurgery Physician1538151527
- William Helfrich, MDSpecialist1124017207
Verify Denis J. Blais in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 59081Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Denis J. Blais among 1,096 specialist records in Massachusetts
Denis J. Blais, MD is one of 1,096 specialist records with a practice address in Massachusetts. 15% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileNo · 15% of these records are
- In the CMS Doctors and Clinicians fileNo · 12% of these records are
- Record last updated2010 · 82% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
14 specialist records list a practice address in South Weymouth
They are 14 of the 445 NPPES records with a practice address in South Weymouth, and 1,096 specialist records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,096 in Massachusetts → Every provider in South Weymouth → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Jeffrey Bennett, MDSouth Weymouth, MA 021901811987837
- Stacy Bierly, MSPTSouth Weymouth, MA 021901043224967
- George Cuchural, M.D.South Weymouth, MA 021901124137484
- Sergio Fefer, M.D.South Weymouth, MA 021901053343574
- John Feldman, MDSouth Weymouth, MA 021901194715110
- William Helfrich, MDSouth Weymouth, MA 021901124017207
- Young Kim, MDSouth Weymouth, MA 021901235240219
- Lawrence KullaSouth Weymouth, MA 021901952365264
Common questions
What is Denis J. Blais, MD's NPI number?
Denis J. Blais, MD's National Provider Identifier (NPI) is 1245229335, issued on Oct 20, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Denis J. Blais, MD located?
The NPPES record lists a practice address at 780 Main St, South Weymouth, MA, 02190. Phone: (781) 331-4600. Providers update this record themselves, so call before visiting.
How can I verify Denis J. Blais, MD's license?
NPPES lists Massachusetts license number 59081, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity 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. 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.