Martin Mandel, M.D.
NPI 1649238395 · Specialist · Willoughby, OH
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Martin Mandel, M.D. is a Specialist provider in Willoughby, OH (NPI 1649238395).
Provider details
- NPI number
- 1649238395
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 35034980 (OH)
Specialties & taxonomies
Other Service Providers
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
- 2006-05-03
- Last updated
- 2007-08-10
Frequently asked questions
- What is Martin Mandel's NPI number?
- Martin Mandel's National Provider Identifier (NPI) is 1649238395, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Martin Mandel's specialty?
- Martin Mandel is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Martin Mandel located?
- Martin Mandel's practice location on file with NPPES is 36100 Euclid Ave, Willoughby, OH 44094-4456.
- What is Martin Mandel's phone number?
- The practice phone number listed in the NPPES registry for Martin Mandel is (440) 951-1073.
- Does Martin Mandel accept Medicare?
- Martin Mandel is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Martin Mandel's NPI active?
- Yes — Martin Mandel's NPI (1649238395) is active in the NPPES registry as of the last update on 2007-08-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.