Karl Harnish, DO
NPI 1104933043 · Emergency Medicine Physician · Athens, OH
Karl Harnish, DO is a Emergency Medicine Physician provider in Athens, OH (NPI 1104933043).
Provider details
- NPI number
- 1104933043
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
- License
- 34003814H (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
- 2006-08-24
- Last updated
- 2012-02-09
Frequently asked questions
- What is Karl Harnish's NPI number?
- Karl Harnish's National Provider Identifier (NPI) is 1104933043, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karl Harnish's specialty?
- Karl Harnish is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Karl Harnish located?
- Karl Harnish's practice location on file with NPPES is 39 Briarwood Dr, Athens, OH 45701-1302.
- What is Karl Harnish's phone number?
- The practice phone number listed in the NPPES registry for Karl Harnish is (740) 593-8920.
- Is Karl Harnish's NPI active?
- Yes — Karl Harnish's NPI (1104933043) is active in the NPPES registry as of the last update on 2012-02-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.