Mary Chalk, APRN-BC
NPI 1245440999 · Family Nurse Practitioner · Charleston, SC
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Chalk, APRN-BC is a Family Nurse Practitioner provider in Charleston, SC (NPI 1245440999).
Provider details
- NPI number
- 1245440999
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN-BC
- Sex
- Female
- Sole proprietor
- No
- License
- 2753 (SC)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-23
- Last updated
- 2020-10-08
- Certified
- 2020-10-08
Frequently asked questions
- What is Mary Chalk's NPI number?
- Mary Chalk's National Provider Identifier (NPI) is 1245440999, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Chalk's specialty?
- Mary Chalk is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Chalk located?
- Mary Chalk's practice location on file with NPPES is 171 Ashley Ave, Charleston, SC 29425-8903.
- What is Mary Chalk's phone number?
- The practice phone number listed in the NPPES registry for Mary Chalk is (843) 792-0885.
- Does Mary Chalk accept Medicare?
- Mary Chalk is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Chalk's NPI active?
- Yes — Mary Chalk's NPI (1245440999) is active in the NPPES registry as of the last update on 2020-10-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.