Mary Trephan, PA-C
NPI 1659806446 · Physician Assistant · Summerville, SC
Mary Trephan, PA-C is a Physician Assistant provider in Summerville, SC (NPI 1659806446).
Provider details
- NPI number
- 1659806446
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- Yes
- License
- PA2644 (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
9 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
- 2017-04-29
- Last updated
- 2019-06-03
Frequently asked questions
- What is Mary Trephan's NPI number?
- Mary Trephan's National Provider Identifier (NPI) is 1659806446, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Trephan's specialty?
- Mary Trephan is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Trephan located?
- Mary Trephan's practice location on file with NPPES is 1114 N Main St, Summerville, SC 29483-7326.
- What is Mary Trephan's phone number?
- The practice phone number listed in the NPPES registry for Mary Trephan is (843) 212-8070.
- Is Mary Trephan's NPI active?
- Yes — Mary Trephan's NPI (1659806446) is active in the NPPES registry as of the last update on 2019-06-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.