Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Herbert B Allen, M.D.

Dermatopathology Physician in Philadelphia, PA · enumerated 2006.

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

National Provider Identifier

1326006750

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Registry record

Entity type Individual (Type 1)

Name Dr. Herbert B Allen

Credential M.D.

Sex Male

Practice address Philadelphia, PA, 19107

Phone (215) 762-5550

Fax (215) 762-5570

Enumeration date May 3, 2006

Last updated in NPPES Dec 4, 2020

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207ND0900X Dermatopathology Physician Allopathic & Osteopathic Physicians · License 25MA02930300 (NJ) 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
001910299	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 is the NPI number for Herbert Allen?

The National Provider Identifier (NPI) for Herbert Allen is 1326006750, a Type 1 (individual) record in the CMS NPPES registry.

Where does Herbert Allen practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-12-04.