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

Crystal Lynn Chastain, CNP

Individual provider Critical Care Medicine Nurse Practitioner · NPI 1245612654

Crystal Lynn Chastain, CNP is a Nurse Practitioner in Lawrenceville, Georgia. Qualified in 2015, 11 years ago. Practices with Gwinnett Physician Group, LLC, a 115-clinician group and accepts Medicare assignment. Licensed in Georgia.

Years since qualifying
11
Licensed in
GA
In the registry since
2015
Specialties on file
3
What do these letters mean?
CNP — Certified Nurse Practitioner
A certified nurse practitioner.

See every abbreviation used in this directory →

Practice location Address checks out

1000 Medical Center Blvd
Lawrenceville, GA 30046-7694
Phone: (678) 312-2418
Fax: (678) 312-2434
Show map & directions

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

Specialties & licences

Gerontology Nurse Practitioner (primary) Taxonomy 363LG0600X · Licence RN198451 (GA)
Critical Care Medicine Nurse Practitioner Taxonomy 363LC0200X · Licence RN198451 (GA)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence RN198451 (GA)

Record details

NPI number1245612654
Entity typeIndividual (Type 1)
GenderFemale
Credentials CNP
Sole proprietorNo
NPI enumeratedJune 22, 2015
Last updated in NPPESJanuary 31, 2025
Certification dateJanuary 31, 2025

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice Gwinnett Physician Group, Llc — 115 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount