Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Irfan M Hisamuddin, MD

Specialist in Newark, DE · enumerated 2007.

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

National Provider Identifier

1871798421

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Registry record

Entity type Individual (Type 1)

Name Irfan M Hisamuddin

Credential MD

Sex Male

Practice address 4745 Ogletown Stanton Rd, Suite 134, Newark, DE, 19713

Phone (302) 738-5300

Fax (302) 731-4822

Enumeration date Jun 15, 2007

Last updated in NPPES Jul 22, 2015

Taxonomy & licenses

174400000X Specialist Other Service Providers · License PENDING (MD) Primary

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License C1-0011248 (DE) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 → Validate an NPI →

Frequently asked questions

Is NPI 1871798421 active?

Yes, as of the latest NPPES snapshot, NPI 1871798421 is active (record last updated 2015-07-22).

How do I verify Irfan Hisamuddin's NPI record?

Cross-check NPI 1871798421 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

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Mehdi Balakhani Specialist · Newark, DE NPI 1831194224 David Fink Specialist · Newark, DE NPI 1255338844 Siamak Samii Specialist · Newark, DE NPI 1699773853 Gastroenterology Associates, PA Specialist · Newark, DE NPI 1902804982 Theresa Johnston Family Nurse Practitioner · Newark, DE NPI 1235124306 Todd Miller Surgical Physician Assistant · Newark, DE NPI 1023098944 Bonnie Oconnor Surgical Physician Assistant · Newark, DE NPI 1033199948 Michael Pushkarewicz Orthopaedic Surgery Physician · Newark, DE NPI 1841270246

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-07-22.