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Michael Sivak, MD
NPI 1215957881 · Gastroenterology Physician · Cleveland, OH
Michael Sivak, MD is a Gastroenterology Physician provider in Cleveland, OH (NPI 1215957881).
Provider details
- NPI number
- 1215957881
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 35-033864 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
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
11100 Euclid Ave
Cleveland, OH 44106-1716
Phone: (216) 844-8500
Street-level locationGet directions
Mailing address
3605 Warrensville Center Rd
Shaker Heights, OH 44122-5203
Registry dates
- Enumerated
- 2006-07-19
- Last updated
- 2007-07-08
Frequently asked questions
- What is Michael Sivak's NPI number?
- Michael Sivak's National Provider Identifier (NPI) is 1215957881, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Sivak's specialty?
- Michael Sivak is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Sivak located?
- Michael Sivak's practice location on file with NPPES is 11100 Euclid Ave, Cleveland, OH 44106-1716.
- What is Michael Sivak's phone number?
- The practice phone number listed in the NPPES registry for Michael Sivak is (216) 844-8500.
- Is Michael Sivak's NPI active?
- Yes — Michael Sivak's NPI (1215957881) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.