Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Allen Geng, DMD

Q: What is the NPI number for Allen Geng?

The National Provider Identifier (NPI) for Allen Geng is 1568759330, a Type 1 (individual) record in the CMS NPPES registry.

General Practice Dentistry in Chesterbrook, PA · enumerated 2011.

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

National Provider Identifier

1568759330

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Registry record

Entity type Individual (Type 1)

Name Dr. Allen Geng

Credential DMD

Sex Male

Practice address 27 Rampart Dr, Chesterbrook, PA, 19087

Phone (312) 320-1908

Enumeration date Jun 30, 2011

Last updated in NPPES Nov 12, 2014

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License DS040208 (PA) Primary

1223G0001X General Practice Dentistry Dental Providers · License 10634 (CT) Secondary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD credential

Other identifiers

Identifier	Type	State	Issuer
004236346	Medicaid	CT	-

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 is the NPI number for Allen Geng?

The National Provider Identifier (NPI) for Allen Geng is 1568759330, a Type 1 (individual) record in the CMS NPPES registry.

Where does Allen Geng practice?

The practice location on file with NPPES is in Chesterbrook, PA. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-11-12.