Dr. Mark Saggio, DDS

Dr. Mark Saggio is a General Practice Dentistry provider (Dentist) practicing in Boulder, CO, registered in the NPPES registry with NPI 1255497335 since 2006. The credential DDS stands for Doctor of Dental Surgery. Practices at Blue Sky Foot & Ankle (listed at the same practice address in NPPES).

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1255497335
Entity type	Individual (Type 1)
Name	Dr. Mark Saggio
Credential	DDS
Sex	Male
Practice address	Boulder, CO, 80305
Phone	3034942213
Fax	3034940242
Enumeration date	2006-12-31
Last updated in NPPES	2007-07-08

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
1223G0001X	General Practice Dentistry	Primary	6497	CO

DDS — Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Copy-ready billing details

Provider: Mark Saggio, DDS
NPI: 1255497335
Taxonomy: 1223G0001X (General Practice Dentistry)
Address: Boulder, CO, 80305

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1083770168	John Weissman	Individual	General Practice Dentistry	Boulder, CO
1194857268	Joy Redstone	Individual	Clinical Social Worker	Boulder, CO
1124694062	Mercedes Becker	Individual	Mental Health Counselor	Boulder, CO
1609637149	Blue Sky Foot & Ankle	Organization	Foot & Ankle Surgery Podiatrist	Boulder, CO

Verify this record

Cross-check NPI 1255497335 against the authoritative CMS record: view Dr. Mark Saggio on the official NPPES registry .

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 or validate an NPI number.

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 Mark Saggio?

Mark Saggio is registered in NPPES with the primary taxonomy of General Practice Dentistry. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.