Gregory Mathis, LPC
NPI 1215317680 · Mental Health Counselor · Washington, DC
Gregory Mathis, LPC is a Mental Health Counselor provider in Washington, DC (NPI 1215317680).
Provider details
- NPI number
- 1215317680
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- LPC
- Sex
- Male
- Sole proprietor
- Yes
- License
- PRC195 (DC)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 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
- 2015-06-01
- Last updated
- 2015-06-01
Frequently asked questions
- What is Gregory Mathis's NPI number?
- Gregory Mathis's National Provider Identifier (NPI) is 1215317680, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Mathis's specialty?
- Gregory Mathis is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Gregory Mathis located?
- Gregory Mathis's practice location on file with NPPES is 4017 Minnesota Ave Ne, Washington, DC 20019-3541.
- What is Gregory Mathis's phone number?
- The practice phone number listed in the NPPES registry for Gregory Mathis is (202) 388-9202.
- Is Gregory Mathis's NPI active?
- Yes — Gregory Mathis's NPI (1215317680) is active in the NPPES registry as of the last update on 2015-06-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.