Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Jonas Gricius, M.D.
Urology Physician in Bangor, ME · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1659534782
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Registry record
Entity type Individual (Type 1)
Name Dr. Jonas Gricius
Credential M.D.
Sex Male
Practice address 55 Broadway Fl 2, Bangor, ME, 04401
Phone (207) 947-0469
Fax (207) 947-5368
Enumeration date Jul 9, 2008
Last updated in NPPES Apr 2, 2020
Taxonomy & licenses
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD 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.
Frequently asked questions
What specialty is Jonas Gricius?
Jonas Gricius is registered in NPPES with the primary taxonomy of Urology 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.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-04-02.