Jonathan Siehl, M.S.W., L.I.S.W.
NPI 1427191642 · Mental Health Counselor · Worthington, OH
Jonathan Siehl, M.S.W., L.I.S.W. is a Mental Health Counselor provider in Worthington, OH (NPI 1427191642).
Provider details
- NPI number
- 1427191642
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- M.S.W., L.I.S.W.
- Sex
- Male
- Sole proprietor
- Yes
- License
- I-1298 (OH)
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
19 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
- 2007-02-15
- Last updated
- 2013-11-08
Frequently asked questions
- What is Jonathan Siehl's NPI number?
- Jonathan Siehl's National Provider Identifier (NPI) is 1427191642, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Siehl's specialty?
- Jonathan Siehl is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Jonathan Siehl located?
- Jonathan Siehl's practice location on file with NPPES is 1000 High St, Worthington, OH 43085-4044.
- What is Jonathan Siehl's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Siehl is (614) 668-3344.
- Is Jonathan Siehl's NPI active?
- Yes — Jonathan Siehl's NPI (1427191642) is active in the NPPES registry as of the last update on 2013-11-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.