Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Thomas Erik Michaelson, M.D.

Infectious Disease Physician in Southampton, PA · enumerated 2006.

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

National Provider Identifier

1881668879

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Registry record

Entity type Individual (Type 1)

Name Dr. Thomas Erik Michaelson

Credential M.D.

Sex Male

Practice address Infectious Diseases Associates PC, 729 Grove Ave Unit 4, Southampton, PA, 18966

Phone (215) 355-9634

Fax (215) 357-7540

Enumeration date Feb 15, 2006

Last updated in NPPES May 19, 2021

Taxonomy & licenses

207RI0200X Infectious Disease Physician Allopathic & Osteopathic Physicians · License MD062751L (PA) 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
0017584150001	Medicaid	PA	-

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 Thomas Michaelson practice?

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

What is the NPI number for Thomas Michaelson?

The National Provider Identifier (NPI) for Thomas Michaelson is 1881668879, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-19.