O & O Alpan, LLC
NPI 1194870311 · Allergy & Immunology Physician · Bethesda, MD
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
O & O Alpan, LLC is a Allergy & Immunology Physician organization in Bethesda, MD (NPI 1194870311).
Provider details
- NPI number
- 1194870311
- Entity type
- Organization
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Oral Alpan, Manager(240) 643-6002
- License
- D0052272 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-25
- Last updated
- 2020-08-22
Frequently asked questions
- What is O & O Alpan, LLC's NPI number?
- O & O Alpan, LLC's National Provider Identifier (NPI) is 1194870311, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is O & O Alpan, LLC?
- O & O Alpan, LLC is classified in the NPPES registry as Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is O & O Alpan, LLC located?
- O & O Alpan, LLC's practice location on file with NPPES is 5511 Oakmont Ave, Bethesda, MD 20817-3527.
- What is O & O Alpan, LLC's phone number?
- The practice phone number listed in the NPPES registry for O & O Alpan, LLC is (240) 643-6002.
- Does O & O Alpan, LLC accept Medicare?
- O & O Alpan, LLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for O & O Alpan, LLC?
- The authorized official listed on O & O Alpan, LLC's NPPES record is Oral Alpan, Manager. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is O & O Alpan, LLC's NPI active?
- Yes — O & O Alpan, LLC's NPI (1194870311) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.