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

Dr. Ayman Nasir, MD

Individual provider Internal Medicine Physician · NPI 1629503362

Dr. Ayman Nasir, MD practises Internal Medicine in Chicago, Illinois. Qualified in 2016, 10 years ago. Practices with Cogent Healthcare of Iowa PC, a 59-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Iowa and Illinois.

Years since qualifying
10
Licensed in
IA, IL
In the registry since
2017
Specialties on file
3
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

5145 N California Ave
Chicago, IL 60625-3661
Phone: (847) 570-1027
Fax: (773) 989-1734
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 701 10th St Se # 701, Cedar Rapids, IA 52403-1251 — (319) 861-7803
  • 1401 Jefferson Hwy, New Orleans, LA 70121-2426 — (504) 842-9216
  • 3001 Hospital Drive 5th Floor, Cheverly, MD 20785 — (301) 618-3776

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 036175087 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD-48687 (IA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 036175087 (IL)

Record details

NPI number1629503362
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 1, 2017
Last updated in NPPESFebruary 9, 2026
Certification dateFebruary 9, 2026

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Cogent Healthcare Of Iowa Pc — 59 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients331
Services billed 1,015 a service is one billed item, such as a visit, a test or a procedure
Average patient age78

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Also affiliated with 1 inpatient rehabilitation facility, which CMS identifies by certification number only.

Colleagues at Cogent Healthcare of Iowa PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 59 clinicians in the practice; 12 are shown here.

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