Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Harry Matthew Null, MD

Surgery Physician in Pittsburgh, PA · enumerated 2005.

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

National Provider Identifier

1427058452

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Registry record

Entity type Individual (Type 1)

Name Harry Matthew Null

Credential MD

Sex Male

Practice address 9104 Babcock Blvd, Suite 1103 Passavant Professional Bldg, Pittsburgh, PA, 15237

Phone (412) 367-5010

Fax (412) 367-5064

Enumeration date Aug 1, 2005

Last updated in NPPES Jul 13, 2026

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License MD 12010-E (PA) Primary

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

What specialty is Harry Null?

Harry Null is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

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