IndividualActive
John Mcmahon, LCSW
NPI 1033399118 · Mental Health Counselor · Columbus, MS
John Mcmahon, LCSW is a Mental Health Counselor provider in Columbus, MS (NPI 1033399118).
Provider details
- NPI number
- 1033399118
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- No
- License
- C5895 (MS)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(88/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
1001 Main St
Columbus, MS 39701-4751
Phone: (662) 328-9225
Fax: (662) 328-4735
Street-level locationGet directions
Mailing address
1032 State Hwy 50 W
West Point, MS 39773
Registry dates
- Enumerated
- 2007-11-06
- Last updated
- 2010-10-26
Frequently asked questions
- What is John Mcmahon's NPI number?
- John Mcmahon's National Provider Identifier (NPI) is 1033399118, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Mcmahon's specialty?
- John Mcmahon is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is John Mcmahon located?
- John Mcmahon's practice location on file with NPPES is 1001 Main St, Columbus, MS 39701-4751.
- What is John Mcmahon's phone number?
- The practice phone number listed in the NPPES registry for John Mcmahon is (662) 328-9225.
- Is John Mcmahon's NPI active?
- Yes — John Mcmahon's NPI (1033399118) is active in the NPPES registry as of the last update on 2010-10-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.