Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Corwin Oswald Demattos

Individual provider Family Nurse Practitioner · NPI 1720617756

Corwin Oswald Demattos is a Nurse Practitioner in Grayson, Georgia. Qualified in 2019, 7 years ago. Practices with North Atlanta Professional Services LLC, a 423-clinician group and accepts Medicare assignment. Licensed in Georgia.

Years since qualifying
7
Licensed in
GA
In the registry since
2020
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Practice location Address checks out

1637 Atlanta Hwy Ste A
Grayson, GA 30017-3001
Phone: (678) 344-8268
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

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 189365 (GA)

Record details

NPI number1720617756
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedApril 2, 2020
Last updated in NPPESDecember 2, 2021
Certification dateNovember 23, 2021

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice North Atlanta Professional Services Llc — 423 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 patients43
Services billed 74 a service is one billed item, such as a visit, a test or a procedure
Average patient age68

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.

  • Northside Hospital Gwinnett Hospital · Lawrenceville, GA

Colleagues at North Atlanta Professional Services LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 423 clinicians in the practice; 12 are shown here.

Other providers in Grayson