NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark Joseph Been, M.D.

Otolaryngology Physician in Geneva, IL · enumerated 2008 · practices at Been Facial Plastics Sc.

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

National Provider Identifier

1285808246

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Mark Joseph Been
Credential M.D.
Sex Male
Practice address 2800 Keslinger Rd Ste 110, Geneva, IL, 60134
Phone (630) 492-1226
Fax (630) 485-6943
Enumeration date Apr 21, 2008
Last updated in NPPES Aug 27, 2018

Taxonomy & licenses

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License FB3752993 (KY) Secondary
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 036.136184 (IL) 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
F400463517 Other IL MEDICARE

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

What is the NPI number for Mark Been?
The National Provider Identifier (NPI) for Mark Been is 1285808246, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mark Been practice?
The practice location on file with NPPES is in Geneva, IL. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-08-27.