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Allergy/Immunology

Safa M. Nsouli, MD

Sees patients in Danville, CA · California

Summary

Dr. Safa M. Nsouli, MD is an allergist and immunologist at 905 San Ramon Valley Blvd, Suite 208, Danville, CA 94526. Phone: (925) 831-8344. Accepts Medicare assignment. In 2024, Safa M. Nsouli had 126 Original Medicare patients and 23,990 services. NPI 1750435442. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Allergist and immunologist (Medicare lists Allergy/Immunology)
  • Address: 905 San Ramon Valley Blvd, Suite 208, Danville, CA 94526 · Directions
  • Phone: (925) 831‑8344
  • Medicare: Accepts Medicare assignment
  • Medical school: graduated 1982 (44 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Safa M. Nsouli, 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 Safa M. Nsouli accept Medicare assignment?
Yes. Medicare's clinician data says Safa M. Nsouli 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 Safa M. Nsouli see?
In 2024, CMS data shows 126 Original Medicare patients and 23,990 services for Safa M. Nsouli. This counts Original Medicare only and measures volume, not quality.
What is Safa M. Nsouli's NPI number?
1750435442. 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 Safa M. Nsouli, 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 patients126
Services billed to Medicare23,990
Different services or procedures12
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Professional service for preparation and provision of 1 or more antigens (95165)9,600 services
  2. Test for allergy using allergenic extract (95004)5,566 services
  3. Professional service for multiple injections of allergen (95117)2,794 services
  4. Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional (99211)2,304 services
  5. Test for allergy using allergenic extract injected into skin (95024)1,624 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 cholesterol75%
  • Asthma75%
  • High blood pressure62%
  • Arthritis47%
  • Osteoporosis25%
  • Diabetes22%

Practice locations

Addresses where Safa M. Nsouli is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Allergy/Immunology doctors in California →

Other allergist and immunologists in California

Clinicians with the same Medicare primary specialty in California — not a recommendation.

All allergist and immunologists in California →

Clinician information

CredentialMD
Graduation year1982 (44 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1750435442
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians