NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

John Dwyer Powderly II, M.D.

Hematology & Oncology Physician in Huntersville, NC · enumerated 2006.

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

National Provider Identifier

1265453047

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Registry record

Entity type Individual (Type 1)
Name John Dwyer Powderly II
Credential M.D.
Sex Male
Practice address Huntersville, NC, 28078
Phone (704) 947-6599
Fax (704) 947-6597
Enumeration date Jul 21, 2006
Last updated in NPPES Jul 10, 2013

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 200000939 (NC) Primary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 200000939 (NC) Secondary
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
E2701 Other NC MEDCOST
12618 Other NC BCBS INDIVIDUAL NUMBER
8912618 Medicaid NC -
4859724 Other NC CIGNA
7413187 Other NC AETNA PIN
203016908 Other NC TAX ID

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 John Powderly?
John Powderly is registered in NPPES with the primary taxonomy of Hematology & Oncology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-07-10.