Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Rittenhouse Anesthesia Associates, Ltd.

Anesthesiology Physician in Philadelphia, PA · enumerated 2006 · authorized official Mary Johnson, Administrator.

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

National Provider Identifier

1013962331

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Registry record

Entity type Organization (Type 2)

Legal business name Rittenhouse Anesthesia Associates, Ltd.

Practice address 520 S 19th St, Philadelphia, PA, 19146

Phone (215) 545-4173

Fax (215) 545-1543

Enumeration date May 24, 2006

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Mary Johnson

Title Administrator

Phone (215) 545-4173

Other identifiers

Identifier	Type	State	Issuer
0017446700001	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 type of organization is Rittenhouse Anesthesia Associates, Ltd.?

Rittenhouse Anesthesia Associates, Ltd. is registered in NPPES as a Anesthesiology Physician (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.