Dr. Mark D. Phillips, DDS
Dr. Mark D. Phillips is a General Practice Dentistry provider (Dentist) practicing in Middletown, OH, registered in the NPPES registry with NPI 1598704256 since 2006. The credential DDS stands for Doctor of Dental Surgery. Practices at David J Roemisch, DDS, LLC (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1598704256 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Mark D. Phillips |
| Credential | DDS |
| Sex | Male |
| Practice address | 311 N BREIEL BLVD, Middletown, OH, 45042 |
| Phone | 5134201876 |
| Enumeration date | 2006-06-06 |
| Last updated in NPPES | 2007-07-08 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 1223G0001X | General Practice Dentistry | Primary | 19747 | OH |
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 Phillips, DDS NPI: 1598704256 Taxonomy: 1223G0001X (General Practice Dentistry) Address: 311 N BREIEL BLVD, Middletown, OH, 45042
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1114373032 | David Roemisch | Individual | General Practice Dentistry | Middletown, OH |
| 1154827319 | David J Roemisch, DDS, LLC | Organization | General Practice Dentistry | Middletown, OH |
Verify this record
Cross-check NPI 1598704256 against the authoritative CMS record: view Dr. Mark D. Phillips 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
How do I verify Mark Phillips's NPI record?
Is NPI 1598704256 active?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.