Marymac Williams, M.A. CCC SLP
NPI 1598814410 · Speech-Language Pathologist · Columbia, SC
Marymac Williams, M.A. CCC SLP is a Speech-Language Pathologist provider in Columbia, SC (NPI 1598814410).
Provider details
- NPI number
- 1598814410
- Entity type
- Individual
- Primary specialty
- Speech-Language PathologistSpeech, Language and Hearing Service Providers
- Credential
- M.A. CCC SLP
- Sex
- Female
- Sole proprietor
- No
- License
- 3360 (SC)
Specialties & taxonomies
Speech, Language and Hearing Service 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
- 2007-01-09
- Last updated
- 2007-07-08
Frequently asked questions
- What is Marymac Williams's NPI number?
- Marymac Williams's National Provider Identifier (NPI) is 1598814410, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marymac Williams's specialty?
- Marymac Williams is listed in the NPPES registry with a primary specialty of Speech-Language Pathologist (Speech, Language and Hearing Service Providers).
- Where is Marymac Williams located?
- Marymac Williams's practice location on file with NPPES is 820 Kipling Dr, Columbia, SC 29205-2036.
- What is Marymac Williams's phone number?
- The practice phone number listed in the NPPES registry for Marymac Williams is (803) 738-0426.
- Is Marymac Williams's NPI active?
- Yes — Marymac Williams's NPI (1598814410) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.