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

Niem L. Nguyen, MD

Individual provider Internal Medicine Physician · NPI 1669429957

Niem L. Nguyen, MD is an Internal Medicine in Anaheim, California. Qualified in 1991, 35 years ago. Practices with Chest and Critical Care Consultants a Medical Group, a 72-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
35
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1182 N Euclid St
Anaheim, CA 92801-1900
Phone: (714) 399-9222
Fax: (714) 399-9226
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A78088 (CA)

Record details

NPI number1669429957
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 30, 2006
Last updated in NPPESJuly 29, 2011

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1991 (35 years in practice)
Group practice Chest And Critical Care Consultants A Medical Group — 72 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Anaheim