Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Karyl T. Rattay, MD
Pediatrics Physician in Dover, DE · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1124216585
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Registry record
Entity type Individual (Type 1)
Name Dr. Karyl T. Rattay
Credential MD
Sex Female
Practice address 417 Federal St, Dover, DE, 19901
Phone (302) 744-4818
Fax (302) 739-6659
Enumeration date Oct 11, 2007
Last updated in NPPES Nov 29, 2011
Taxonomy & licenses
208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License C10007731 (DE) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0151718 | Medicaid | NJ | - |
| 4140354 | Medicaid | MD | - |
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
Where does Karyl Rattay practice?
The practice location on file with NPPES is in Dover, DE. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Karyl Rattay?
The National Provider Identifier (NPI) for Karyl Rattay is 1124216585, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-11-29.