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Dr. Michael R Sivulich, MD

Gastroenterology Physician in Lewiston, ME · enumerated 2005.

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

National Provider Identifier

1639155393

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Registry record

Entity type Individual (Type 1)
Name Dr. Michael R Sivulich
Credential MD
Sex Male
Practice address 93 Campus Ave, Lewiston, ME, 04240
Phone (207) 755-3636
Fax (207) 755-3652
Enumeration date Dec 15, 2005
Last updated in NPPES Dec 30, 2014

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 11922 (ME) 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
100005851 Other - RAILROAD MEDICARE
1040131 Other - AETNA
309480099 Medicaid ME -
002390 Other - ANTHEM

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

Where does Michael Sivulich practice?
The practice location on file with NPPES is in Lewiston, ME. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Michael Sivulich?
The National Provider Identifier (NPI) for Michael Sivulich is 1639155393, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-12-30.