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Allergy/Immunology

Oral Alpan, MD

Works at hospitals in Reston, VA · Virginia

Summary

Dr. Oral Alpan, MD is an allergist and immunologist at 8260 Greensboro Dr, Mc Lean, VA 22102. Accepts Medicare assignment. In 2024, Oral Alpan had 209 Original Medicare patients and 16,069 services. NPI 1881788610. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Allergist and immunologist (Medicare lists Allergy/Immunology)
  • Address: 8260 Greensboro Dr, Mc Lean, VA 22102 · Directions
  • Medicare: Accepts Medicare assignment
  • Hospital: Reston Hospital Center
  • Medical school: graduated 1990 (36 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Oral Alpan, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Oral Alpan accept Medicare assignment?
Yes. Medicare's clinician data says Oral Alpan accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Oral Alpan see?
In 2024, CMS data shows 209 Original Medicare patients and 16,069 services for Oral Alpan. This counts Original Medicare only and measures volume, not quality.
What is Oral Alpan's NPI number?
1881788610. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Oral Alpan, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients209
Services billed to Medicare16,069
Different services or procedures17
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. Flow cytometry technique for dna or cell analysis, each additional marker (88185)13,076 services
  2. Test for allergy using allergenic extract (95004)1,026 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)435 services
  4. Flow cytometry technique for dna or cell analysis, 16 or more markers (88189)408 services
  5. Flow cytometry technique for dna or cell analysis, first marker (88184)398 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol73%
  • High blood pressure57%
  • Arthritis56%
  • Asthma34%
  • Anxiety33%
  • Ischemic heart disease22%

Hospitals where Oral Alpan works

Medicare's Facility Affiliation Data lists Oral Alpan at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Reston Hospital CenterReston, VA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 490107

Practice locations

Addresses where Oral Alpan is enrolled with Medicare (CMS data updated October 2, 2026).

  • 8260 Greensboro DrMc Lean, VA 22102

Specialties

Find other Allergy/Immunology doctors in Virginia →

Other allergist and immunologists in Mc Lean

Clinicians with the same Medicare primary specialty in Mc Lean, VA — not a recommendation.

All allergist and immunologists in Mc Lean →

Clinician information

CredentialMD
Graduation year1990 (36 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1881788610
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians