Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

O & O Alpan, LLC

Allergy & Immunology Physician in Bethesda, MD · enumerated 2007 · authorized official Oral Alpan, Manager.

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

National Provider Identifier

1194870311

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Registry record

Entity type Organization (Type 2)

Legal business name O & O Alpan, LLC

Practice address 5511 Oakmont Ave, Bethesda, MD, 20817

Phone (240) 643-6002

Fax (301) 530-7424

Enumeration date Jan 25, 2007

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians · License D0052272 (MD) Primary

Authorized official

Name Oral Alpan

Title Manager

Phone (240) 643-6002

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2020-08-22. Verify at npiregistry.cms.hhs.gov.

Where is O & O Alpan, LLC located?

The practice location on file with NPPES is in Bethesda, MD.

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