Steven Karassik, MD
NPI 1891748117 · Dermatology Physician · Ketchum, ID
Steven Karassik, MD is a Dermatology Physician provider in Ketchum, ID (NPI 1891748117).
Provider details
- NPI number
- 1891748117
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- M5900 (ID)
Specialties & taxonomies
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
20 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
- 2006-05-18
- Last updated
- 2013-09-24
Frequently asked questions
- What is Steven Karassik's NPI number?
- Steven Karassik's National Provider Identifier (NPI) is 1891748117, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Karassik's specialty?
- Steven Karassik is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Steven Karassik located?
- Steven Karassik's practice location on file with NPPES is 191 W 5th St, Ketchum, ID 83340.
- What is Steven Karassik's phone number?
- The practice phone number listed in the NPPES registry for Steven Karassik is (208) 725-2171.
- Is Steven Karassik's NPI active?
- Yes — Steven Karassik's NPI (1891748117) is active in the NPPES registry as of the last update on 2013-09-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.