Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Sydney Boi Thoi Long, MD

Individual provider Internal Medicine Physician · NPI 1881924918

Dr. Sydney Boi Thoi Long, MD is an Allergy/Immunology in Fresno, California. Graduated from Johns Hopkins University School of Medicine in 2011, 15 years ago. Practices with Baz Allergy Asthma and Sinus Center Inc, a 23-clinician group and accepts Medicare assignment. Licensed in California and Washington.

Years since qualifying
15
Trained at
Johns Hopkins University School of Medicine
Licensed in
CA, WA
In the registry since
2010
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

7471 N Fresno St
Fresno, CA 93720-2457
Phone: (559) 436-4500
Fax: (559) 436-0500
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A143874 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD60500537 (WA)

Record details

NPI number1881924918
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 13, 2010
Last updated in NPPESAugust 30, 2016

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyALLERGY/IMMUNOLOGY
Medical schoolJOHNS HOPKINS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2011 (15 years in practice)
Group practice Baz Allergy Asthma And Sinus Center Inc — 23 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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