Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Robert W Cox, MD
Nephrology Physician in Newark, DE · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1992704639
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Registry record
Entity type Individual (Type 1)
Name Robert W Cox
Credential MD
Sex Male
Practice address 4923 Ogletown Stanton Rd, Suite 200, Newark, DE, 19713
Phone (302) 225-0451
Fax (302) 225-0470
Enumeration date Jul 15, 2005
Last updated in NPPES Mar 18, 2015
Taxonomy & licenses
207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License C10000669 (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 |
|---|---|---|---|
| 597991900 | Medicaid | MD | - |
| 0000048101 | Medicaid | DE | - |
| 8818207 | Medicaid | NJ | - |
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 Robert Cox practice?
The practice location on file with NPPES is in Newark, DE. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Robert Cox?
The National Provider Identifier (NPI) for Robert Cox is 1992704639, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Mid-Atlantic Endoscopy Center, LLC Ambulatory Surgical Clinic/Center · Newark, DE NPI 1497751747 Joseph Kuhn Nephrology Physician · Newark, DE NPI 1982690111 Lindsey Slater Nephrology Physician · Newark, DE NPI 1821085929 Susan Fullerton Nurse Practitioner · Newark, DE NPI 1295722155 Tamara Newell Nurse Practitioner · Newark, DE NPI 1740277615 Prayus Tailor Nephrology Physician · Newark, DE NPI 1679552764 Nephrology Associates PA Nephrology Physician · Newark, DE NPI 1407805203 Yamileth Wu-Gerrard Nurse Practitioner · Newark, DE NPI 1215977707
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-03-18.