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

Nasser Hajaig, MD

Individual provider Internal Medicine Physician · NPI 1457324204

Nasser Hajaig, MD is an Internal Medicine in Phoenix, Arizona. Qualified in 1993, 33 years ago. Practices with Circle the City, a 63-clinician group and accepts Medicare assignment. Licensed in Arizona.

Years since qualifying
33
Licensed in
AZ
In the registry since
2006
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

19646 N 27th Ave Ste 1301
Phoenix, AZ 85027-4017
Phone: (623) 580-5390
Fax: (623) 580-5397
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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 25018 (AZ)

Record details

NPI number1457324204
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 10, 2006
Last updated in NPPESFebruary 3, 2022
Certification dateFebruary 3, 2022

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1993 (33 years in practice)
Group practice Circle The City — 63 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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