Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Nathan E Langer, M.D.

Hematology & Oncology Physician in Petersburg, VA · enumerated 2007.

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

National Provider Identifier

1225230030

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Registry record

Entity type Individual (Type 1)

Name Dr. Nathan E Langer

Credential M.D.

Sex Male

Practice address 210 Medical Park Blvd Ste 200, Petersburg, VA, 23805

Phone (804) 431-1100

Fax (804) 862-1094

Enumeration date Jun 4, 2007

Last updated in NPPES Feb 22, 2024

Taxonomy & licenses

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 0101256627 (VA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 Nathan Langer?

The National Provider Identifier (NPI) for Nathan Langer is 1225230030, a Type 1 (individual) record in the CMS NPPES registry.

Where does Nathan Langer practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-02-22.