Mark Fielder
NPI 1598658882 · Addiction (Substance Use Disorder) Counselor · Waverly, OH
Mark Fielder is a Addiction (Substance Use Disorder) Counselor provider in Waverly, OH (NPI 1598658882).
Provider details
- NPI number
- 1598658882
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
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
1 yr 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
- 2025-06-03
- Last updated
- 2025-06-03
- Certified
- 2025-06-03
Frequently asked questions
- What is Mark Fielder's NPI number?
- Mark Fielder's National Provider Identifier (NPI) is 1598658882, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Fielder's specialty?
- Mark Fielder is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Mark Fielder located?
- Mark Fielder's practice location on file with NPPES is 218 E North St, Waverly, OH 45690-1148.
- What is Mark Fielder's phone number?
- The practice phone number listed in the NPPES registry for Mark Fielder is (740) 947-6727.
- Is Mark Fielder's NPI active?
- Yes — Mark Fielder's NPI (1598658882) is active in the NPPES registry as of the last update on 2025-06-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.