Gerald Jonsyn, MD
NPI 1518989409 · Critical Care Medicine (Anesthesiology) Physician · Cleveland, OH
Gerald Jonsyn, MD is a Critical Care Medicine (Anesthesiology) Physician provider in Cleveland, OH (NPI 1518989409).
Provider details
- NPI number
- 1518989409
- Entity type
- Individual
- Primary specialty
- Critical Care Medicine (Anesthesiology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 35-046823 (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
- 2006-07-23
- Last updated
- 2010-08-18
Frequently asked questions
- What is Gerald Jonsyn's NPI number?
- Gerald Jonsyn's National Provider Identifier (NPI) is 1518989409, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gerald Jonsyn's specialty?
- Gerald Jonsyn is listed in the NPPES registry with a primary specialty of Critical Care Medicine (Anesthesiology) Physician (Allopathic & Osteopathic Physicians).
- Where is Gerald Jonsyn located?
- Gerald Jonsyn's practice location on file with NPPES is 11100 Euclid Ave, Cleveland, OH 44106-1716.
- What is Gerald Jonsyn's phone number?
- The practice phone number listed in the NPPES registry for Gerald Jonsyn is (216) 844-7330.
- Is Gerald Jonsyn's NPI active?
- Yes — Gerald Jonsyn's NPI (1518989409) is active in the NPPES registry as of the last update on 2010-08-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.