Mark Simpson, PHD, CCC/SLP
NPI 1316055379 · Speech-Language Pathologist · Detroit, MI
Mark Simpson, PHD, CCC/SLP is a Speech-Language Pathologist provider in Detroit, MI (NPI 1316055379).
Provider details
- NPI number
- 1316055379
- Entity type
- Individual
- Primary specialty
- Speech-Language PathologistSpeech, Language and Hearing Service Providers
- Credential
- PHD, CCC/SLP
- Sex
- Male
- Sole proprietor
- No
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
83% 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
- 2006-08-29
- Last updated
- 2018-03-27
Frequently asked questions
- What is Mark Simpson's NPI number?
- Mark Simpson's National Provider Identifier (NPI) is 1316055379, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Simpson's specialty?
- Mark Simpson is listed in the NPPES registry with a primary specialty of Speech-Language Pathologist (Speech, Language and Hearing Service Providers).
- Where is Mark Simpson located?
- Mark Simpson's practice location on file with NPPES is 4100 John R St, Detroit, MI 48201-2013.
- What is Mark Simpson's phone number?
- The practice phone number listed in the NPPES registry for Mark Simpson is (800) 527-6266.
- Is Mark Simpson's NPI active?
- Yes — Mark Simpson's NPI (1316055379) is active in the NPPES registry as of the last update on 2018-03-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.