Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Andrew A. Aronson, MD

Emergency Medicine Physician in Philadelphia, PA · enumerated 2005.

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

National Provider Identifier

1720080302

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Registry record

Entity type Individual (Type 1)

Name Dr. Andrew A. Aronson

Credential MD

Sex Male

Practice address 1020 Sansom St, Suite 239, Philadelphia, PA, 19107

Phone (215) 955-6844

Fax (215) 955-2526

Enumeration date Aug 12, 2005

Last updated in NPPES Oct 22, 2013

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License MD425757 (PA) 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
2573595	Medicaid	OH	-
101299997	Medicaid	PA	-
3810004052	Medicaid	WV	-
0309028	Medicaid	NJ	-
1012999970001	Medicaid	PA	-

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 Andrew Aronson?

Andrew Aronson is registered in NPPES with the primary taxonomy of Emergency Medicine 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 2013-10-22.