Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Arthur Ersner, MD

Internal Medicine Physician in Norristown, PA · enumerated 2006.

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

National Provider Identifier

1952354011

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Registry record

Entity type Individual (Type 1)

Name Arthur Ersner

Credential MD

Sex Male

Practice address 1411 Powell St, Norristown, PA, 19401

Phone (610) 279-8300

Fax (610) 279-5965

Enumeration date May 18, 2006

Last updated in NPPES Jul 9, 2007

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD016530E (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
0005061	Other	PA	AETNA HMO
0045819000	Other	PA	AMERIHEALTH/INTERCOUNTY
30009532	Other	PA	KEYSTONE MERCY
0006268140005	Medicaid	PA	-
10926320	Other	PA	CAQH ID#
68808	Other	PA	FIRST HEALTH
0045819000	Other	PA	IBC - PC/KHPE
113672	Other	PA	PHCS
1137346	Other	PA	CIGNA HMO/PPO
4100543	Other	PA	AETNA PPO
P00062894	Other	PA	RRM
109157	Other	PA	HIGHMARK BLUE SHIELD

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 Arthur Ersner?

Arthur Ersner is registered in NPPES with the primary taxonomy of Internal Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.