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

Dr. Addason Fellows Heath McCaslin, MD

Individual provider Internal Medicine Physician · NPI 1083032809

Dr. Addason Fellows Heath McCaslin, MD practises Neurology in Chicago, Illinois. Graduated from Northwestern University Feinberg Medical School in 2014, 12 years ago. Practices with Permanente Medical Group Inc, a 10,941-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California, Illinois and South Carolina.

Years since qualifying
12
Trained at
Northwestern University Feinberg Medical School
Licensed in
CA, IL, SC
In the registry since
2014
Specialties on file
4
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

244 E Pearson St Apt 1607
Chicago, IL 60611-2577
Phone: (802) 316-1869
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 200 Patewood Dr Ste B350, Greenville, SC 29615-6337 — (864) 454-4500

Specialties & licences

Neurology Physician (primary) Taxonomy 2084N0400X · Licence A142323 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 125-065307 (IL)
Vascular Neurology Physician Taxonomy 2084V0102X · Licence 83186 (SC)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1083032809
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 29, 2014
Last updated in NPPESDecember 20, 2021
Certification dateSeptember 1, 2021

Medicare enrollment

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

Medicare specialtyNEUROLOGY
Medical schoolNORTHWESTERN UNIVERSITY FEINBERG MEDICAL SCHOOL
Graduated 2014 (12 years in practice)
Group practice Permanente Medical Group Inc — 10941 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients34
Services billed 42 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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.

Colleagues at Permanente Medical Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 10941 clinicians in the practice; 12 are shown here.

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