IndividualActive
John Marxen, LPC
NPI 1932340437 · Mental Health Counselor · Oshkosh, WI
John Marxen, LPC is a Mental Health Counselor provider in Oshkosh, WI (NPI 1932340437).
Provider details
- NPI number
- 1932340437
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- LPC
- Sex
- Male
- Sole proprietor
- Yes
- License
- 3020-125 (WI)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(86/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
3126 W 20th Ave
Oshkosh, WI 54904-9258
Phone: (920) 279-6001
Street-level locationGet directions
Mailing address
1736 Bernheim St
Oshkosh, WI 54904-8967
Registry dates
- Enumerated
- 2009-03-12
- Last updated
- 2009-03-12
Frequently asked questions
- What is John Marxen's NPI number?
- John Marxen's National Provider Identifier (NPI) is 1932340437, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Marxen's specialty?
- John Marxen is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is John Marxen located?
- John Marxen's practice location on file with NPPES is 3126 W 20th Ave, Oshkosh, WI 54904-9258.
- What is John Marxen's phone number?
- The practice phone number listed in the NPPES registry for John Marxen is (920) 279-6001.
- Is John Marxen's NPI active?
- Yes — John Marxen's NPI (1932340437) is active in the NPPES registry as of the last update on 2009-03-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.