Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Tinsley Simonds Iselin, PA-C
Physician Assistant in Clinton, MD · enumerated 2012.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1255682589
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Tinsley Simonds Iselin
Credential PA-C
Sex Female
Practice address 8926 Woodyard Rd, Suite 701, Clinton, MD, 20735
Phone (301) 856-1682
Fax (301) 856-0964
Enumeration date Sep 26, 2012
Last updated in NPPES Sep 26, 2012
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License C0004858 (MD) Primary
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 0110004018 (VA) Secondary
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| C0004858 | Other | - | MARYLAND LICENSE |
| 0110004018 | Other | - | VIRGINIA LICENSE |
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.
Frequently asked questions
Is NPI 1255682589 active?
Yes, as of the latest NPPES snapshot, NPI 1255682589 is active (record last updated 2012-09-26).
How do I verify Tinsley Iselin's NPI record?
Cross-check NPI 1255682589 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → David Haidak Hematology & Oncology Physician · Clinton, MD NPI 1215933221 Jake Vrdoljak Radiological Physics Physician · Clinton, MD NPI 1619976230 Terrence Dwyer Rheumatology Physician · Clinton, MD NPI 1962499103 Laura Stanfield Medical Physician Assistant · Clinton, MD NPI 1972583904 Verne Kemerer Specialist · Clinton, MD NPI 1598745358 Philip Man Specialist · Clinton, MD NPI 1730169590 Paul Weiner Specialist · Clinton, MD NPI 1538149372 Jorge Garciala Specialist · Clinton, MD NPI 1023098878
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-09-26.