IndividualActive
Mark Leifer, MD
NPI 1225009699 · Gastroenterology Physician · Lima, OH
Mark Leifer, MD is a Gastroenterology Physician provider in Lima, OH (NPI 1225009699).
Provider details
- NPI number
- 1225009699
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 35056268 (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
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
2793 Shawnee Rd
Lima, OH 45806-1444
Phone: (419) 227-8209
Fax: (419) 222-6007
Street-level locationGet directions
Mailing address
4484 Indian Hill Dr
Lima, OH 45806-1358
Registry dates
- Enumerated
- 2006-02-01
- Last updated
- 2008-10-09
Frequently asked questions
- What is Mark Leifer's NPI number?
- Mark Leifer's National Provider Identifier (NPI) is 1225009699, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Leifer's specialty?
- Mark Leifer is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Leifer located?
- Mark Leifer's practice location on file with NPPES is 2793 Shawnee Rd, Lima, OH 45806-1444.
- What is Mark Leifer's phone number?
- The practice phone number listed in the NPPES registry for Mark Leifer is (419) 227-8209.
- Is Mark Leifer's NPI active?
- Yes — Mark Leifer's NPI (1225009699) is active in the NPPES registry as of the last update on 2008-10-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.