Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Donald Edmond O'Malley, M.D.

Specialist in Falmouth, MA · enumerated 2006.

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

National Provider Identifier

1598737090

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Registry record

Entity type Individual (Type 1)

Name Dr. Donald Edmond O'Malley

Credential M.D.

Sex Male

Practice address Falmouth, MA, 02540

Phone (508) 540-0200

Fax (508) 540-1677

Enumeration date Feb 7, 2006

Last updated in NPPES Mar 29, 2010

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 157476 (MA) Primary

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
8429172001	Other	MA	CIGNA
202895805	Other	MA	AETNA
240681	Other	MA	HARVARD PILGRIM
157476	Other	MA	TUFTS
202895805	Other	MA	HEALTH CARE VALUE MANAGEM
J18951	Other	MA	BLUE CROSS BLUE SHIELD

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 is the NPI number for Donald O'Malley?

The National Provider Identifier (NPI) for Donald O'Malley is 1598737090, a Type 1 (individual) record in the CMS NPPES registry.

Where does Donald O'Malley practice?

The practice location on file with NPPES is in Falmouth, MA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Karen Trait Physician Assistant · Falmouth, MA NPI 1891767315 Lisa Mayhew Physician Assistant · Falmouth, MA NPI 1023080538 Paul Dimond Orthopaedic Surgery Physician · Falmouth, MA NPI 1003881632 Cape Cod Sports Medicine Orthopaedic Surgery Physician · Falmouth, MA NPI 1427074442 Total Orthopedic Care Inc Orthopaedic Surgery Physician · Falmouth, MA NPI 1396750741 Lara Baldasaro Orthopaedic Surgery Physician · Falmouth, MA NPI 1013001742 William Litterer Geriatric Medicine (Internal Medicine) Physician · Falmouth, MA NPI 1104990019 Justin Cobis Physician Assistant · Falmouth, MA NPI 1598108102

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-03-29.