Mark D Chilton, M.D.
Mark D Chilton is a Specialist provider (Specialist) practicing in Frederick, MD, registered in the NPPES registry with NPI 1689644072 since 2006. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1689644072 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Mark D Chilton |
| Credential | M.D. |
| Sex | Male |
| Practice address | 86 THOMAS JOHNSON CT, Frederick, MD, 21702 |
| Phone | 3016948311 |
| Fax | 3016943537 |
| Enumeration date | 2006-01-26 |
| Last updated in NPPES | 2020-06-06 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 174400000X | Specialist | Primary | D33237 | MD |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Copy-ready billing details
Provider: Mark Chilton, M.D. NPI: 1689644072 Taxonomy: 174400000X (Specialist) Address: 86 THOMAS JOHNSON CT, Frederick, MD, 21702
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1972599678 | Michael Kennedy | Individual | Surgical Physician Assistant | Frederick, MD |
| 1376531145 | Rachael Tallerico | Individual | Physical Therapist | Frederick, MD |
| 1588634570 | Nisenfeld & Chilton, M.D., P.A. | Organization | Specialist | Frederick, MD |
| 1952371841 | Frank Nisenfeld | Individual | Specialist | Frederick, MD |
| 1376513804 | Kristin Silon | Individual | Orthopaedic Surgery Physician | Frederick, MD |
| 1588634018 | Neeti Bhargava | Individual | Rheumatology Physician | Frederick, MD |
| 1376513812 | Enrico Villanueva | Individual | Specialist | Frederick, MD |
| 1689645855 | Zinon Pappas | Individual | Pain Medicine Physician | Frederick, MD |
Verify this record
Cross-check NPI 1689644072 against the authoritative CMS record: view Mark D Chilton 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 2020-06-06.