Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael Doyle Mason, D.O.

Adult Reconstructive Orthopaedic Surgery Physician in Brighton, MA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1477581437

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Registry record

Entity type Individual (Type 1)

Name Michael Doyle Mason

Credential D.O.

Sex Male

Practice address 20 Guest St, Suite 225, Brighton, MA, 02135

Phone (617) 738-8642

Fax (617) 491-2552

Enumeration date Jun 29, 2006

Last updated in NPPES Dec 6, 2017

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 80434 (MA) Secondary

207XS0114X Adult Reconstructive Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 80434 (MA) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Michael Mason?

Michael Mason is registered in NPPES with the primary taxonomy of Adult Reconstructive Orthopaedic Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Glen Ross Orthopaedic Surgery Physician · Brighton, MA NPI 1114985348 Marwa Ahmed Sports Medicine (Physical Medicine & Rehabilitation) Physician · Brighton, MA NPI 1801023254 Lauren Sharifi Registered Dietitian · Brighton, MA NPI 1639624794 Pro Sports Orthopedics, LLC Orthopaedic Surgery Physician · Brighton, MA NPI 1659829323 Westley White Surgical Physician Assistant · Brighton, MA NPI 1578005286 Always Strong Fitness Registered Dietitian · Brighton, MA NPI 1437670361 Sarah Lieberman Physical Therapist · Boston, MA NPI 1265269930

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-12-06.