Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Christos J Bacos, D.M.D.

Oral and Maxillofacial Surgery (Dentist) in Lowell, MA · enumerated 2007.

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

National Provider Identifier

1689712671

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Registry record

Entity type Individual (Type 1)

Name Dr. Christos J Bacos

Credential D.M.D.

Sex Male

Practice address 33 Bartlett St, Lowell, MA, 01852

Phone (978) 454-7254

Fax (978) 458-5467

Enumeration date Feb 2, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1223S0112X Oral and Maxillofacial Surgery (Dentist) Dental Providers · License 9650 (MA) Primary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD credential

Other identifiers

Identifier	Type	State	Issuer
X02896	Other	MA	BLUE CROSS & BLUE SHIELD
009650	Other	MA	TUFTS HEALTH PLAN
0261343	Medicaid	MA	-
16168	Other	MA	HARVARD PILGRIM

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

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.

What specialty is Christos Bacos?

Christos Bacos is registered in NPPES with the primary taxonomy of Oral and Maxillofacial Surgery (Dentist). The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.