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Michael Diem, MD
NPI 1730360991 · Family Medicine Physician · Westlake, OH
Michael Diem, MD is a Family Medicine Physician provider in Westlake, OH (NPI 1730360991).
Provider details
- NPI number
- 1730360991
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 35-08-3221 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(88/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
850 Columbia Rd
Westlake, OH 44145-1493
Phone: (216) 521-4200
Street-level locationGet directions
Mailing address
Box 634704
Cincinnati, OH 45263-0001
Registry dates
- Enumerated
- 2007-11-16
- Last updated
- 2007-11-16
Frequently asked questions
- What is Michael Diem's NPI number?
- Michael Diem's National Provider Identifier (NPI) is 1730360991, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Diem's specialty?
- Michael Diem is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Diem located?
- Michael Diem's practice location on file with NPPES is 850 Columbia Rd, Westlake, OH 44145-1493.
- What is Michael Diem's phone number?
- The practice phone number listed in the NPPES registry for Michael Diem is (216) 521-4200.
- Is Michael Diem's NPI active?
- Yes — Michael Diem's NPI (1730360991) is active in the NPPES registry as of the last update on 2007-11-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.