Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Douglas R Mcdonald, MD, PHD

Allergy Physician in Boston, MA · enumerated 2006.

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

National Provider Identifier

1558447482

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Registry record

Entity type Individual (Type 1)

Name Dr. Douglas R Mcdonald

Credential MD, PHD

Sex Male

Practice address 300 Longwood Ave, Fegan 6, Boston, MA, 02115

Phone (617) 355-6117

Fax (617) 730-0528

Enumeration date Oct 31, 2006

Last updated in NPPES Aug 14, 2007

Taxonomy & licenses

207KA0200X Allergy Physician Allopathic & Osteopathic Physicians · License 213635 (MA) Primary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 213635 (MA) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
2093481	Medicaid	MA	-

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Douglas Mcdonald?

Douglas Mcdonald is registered in NPPES with the primary taxonomy of Allergy Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-08-14.