Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Greg Randolph Pahnke, M.D.

Surgical Oncology Physician in Newark, DE · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1427054857

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Registry record

Entity type Individual (Type 1)

Name Dr. Greg Randolph Pahnke

Credential M.D.

Sex Male

Practice address 4701 Ogletown Stanton Rd, Ste 1340, Newark, DE, 19713

Phone (302) 733-0404

Fax (302) 733-0556

Enumeration date Jun 21, 2005

Last updated in NPPES Mar 21, 2014

Taxonomy & licenses

2086X0206X Surgical Oncology Physician Allopathic & Osteopathic Physicians · License C10002136 (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
96101	Medicaid	DE	-

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.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Greg Pahnke?

Greg Pahnke is registered in NPPES with the primary taxonomy of Surgical Oncology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Robert Slease Hematology (Internal Medicine) Physician · Newark, DE NPI 1649275124 Scott Hall Hematology (Internal Medicine) Physician · Newark, DE NPI 1013913292 Steven Falchuk Hematology & Oncology Physician · Newark, DE NPI 1134128283 Brenda Mckenzie Family Nurse Practitioner · Newark, DE NPI 1235123837 Raafat Abdel-Misih Surgery Physician · Newark, DE NPI 1821088048 Joseph Bennett Surgery Physician · Newark, DE NPI 1619967841 Christiana Care Health Services, Inc Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Newark, DE NPI 1154306512 Christiana Care Health Services Inc Gynecologic Oncology Physician · Newark, DE NPI 1174508410

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-03-21.