Dr. Derek A Siemon, DDS
Dr. Derek A Siemon is a General Practice Dentistry provider (Dentist) practicing in Annapolis, MD, registered in the NPPES registry with NPI 1700893856 since 2006. The credential DDS stands for Doctor of Dental Surgery.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1700893856 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Derek A Siemon |
| Credential | DDS |
| Sex | Male |
| Practice address | Annapolis, MD, 21401 |
| Phone | 4102637338 |
| Enumeration date | 2006-08-02 |
| Last updated in NPPES | 2015-03-18 |
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 | 9284 | MD |
DDS — Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 467084100 | Medicaid | MD | — |
Copy-ready billing details
Provider: Derek Siemon, DDS NPI: 1700893856 Taxonomy: 1223G0001X (General Practice Dentistry) Address: Annapolis, MD, 21401
Verify this record
Cross-check NPI 1700893856 against the authoritative CMS record: view Dr. Derek A Siemon 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 2015-03-18.