Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael M Halassa, MBBS, PHD

Psychiatry Physician in Roanoke, VA · enumerated 2009.

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

National Provider Identifier

1811124639

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Michael M Halassa

Credential MBBS, PHD

Sex Male

Practice address 4434 Electric Rd, Roanoke, VA, 24018

Phone (540) 527-4900

Fax (540) 772-3913

Enumeration date Jun 19, 2009

Last updated in NPPES Sep 1, 2026

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License L-240799 (MA) Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 0101288580 (VA) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Michael Halassa practice?

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

What is the NPI number for Michael Halassa?

The National Provider Identifier (NPI) for Michael Halassa is 1811124639, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Brian Unwin Family Medicine Physician · Roanoke, VA NPI 1114999240 Aubrey Knight Family Medicine Physician · Roanoke, VA NPI 1255494332 Suzanne Fischer Family Nurse Practitioner · Roanoke, VA NPI 1760511414 Donald Gieck Psychologist · Roanoke, VA NPI 1861518037 Kumar Bahl Neurology Physician · Roanoke, VA NPI 1093978934 Troy Hoff Psychiatry Physician · Roanoke, VA NPI 1144583907 Amanda Griffin Marriage & Family Therapist · Roanoke, VA NPI 1114265097 Lisa Jones-Worrell Clinical Social Worker · Roanoke, VA NPI 1508210436

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-09-01.