Dr. Mark J Young, DDS
Dr. Mark J Young is a Endodontics provider (Dentist) practicing in Folsom, CA, registered in the NPPES registry with NPI 1689796856 since 2007. The credential DDS stands for Doctor of Dental Surgery.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1689796856 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Mark J Young |
| Credential | DDS |
| Sex | Male |
| Practice address | Folsom, CA, 95630 |
| Phone | 9169837700 |
| Fax | 9169837981 |
| Enumeration date | 2007-04-06 |
| Last updated in NPPES | 2009-06-16 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 1223E0200X | Endodontics | Secondary | 21797 | MA |
| 1223E0200X | Endodontics | Primary | 58227 | CA |
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 Young, DDS NPI: 1689796856 Taxonomy: 1223E0200X (Endodontics) Address: Folsom, CA, 95630
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1154577492 | Rohini Rattu | Individual | Pediatric Dentistry | Folsom, CA |
| 1780066142 | Eric W. Young, DDS, Mmsc, Inc. | Organization | Endodontics | Folsom, CA |
| 1699244244 | Rohini Rattu DDS, Inc. | Organization | Pediatric Dentistry | Folsom, CA |
Verify this record
Cross-check NPI 1689796856 against the authoritative CMS record: view Dr. Mark J Young 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
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2009-06-16.