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Nathan J Blum, M.D.

Developmental - Behavioral Pediatrics Physician in Philadelphia, PA · enumerated 2006.

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

National Provider Identifier

1689694960

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Registry record

Entity type Individual (Type 1)
Name Nathan J Blum
Credential M.D.
Sex Male
Practice address 3550 Market St Fl 3, Children'S Hospital of Philadelphia - Child Development, Philadelphia, PA, 19104
Phone (267) 425-5200
Fax (267) 426-0975
Enumeration date Jul 20, 2006
Last updated in NPPES Apr 15, 2013

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License MD042057L (PA) Secondary
2080P0006X Developmental - Behavioral Pediatrics Physician Allopathic & Osteopathic Physicians · License MD042057L (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
001464739 Medicaid PA -
6183701 Medicaid NJ -

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

What is the NPI number for Nathan Blum?
The National Provider Identifier (NPI) for Nathan Blum is 1689694960, a Type 1 (individual) record in the CMS NPPES registry.
Where does Nathan Blum practice?
The practice location on file with NPPES is in Philadelphia, PA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-04-15.