Karl Loomis, M.D.
NPI 1689624744 · Anatomic Pathology & Clinical Pathology Physician · Marshall, MI
Karl Loomis, M.D. is a Anatomic Pathology & Clinical Pathology Physician provider in Marshall, MI (NPI 1689624744).
Provider details
- NPI number
- 1689624744
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- License
- 4301045613 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
- 2006-05-11
- Last updated
- 2007-07-08
Frequently asked questions
- What is Karl Loomis's NPI number?
- Karl Loomis's National Provider Identifier (NPI) is 1689624744, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karl Loomis's specialty?
- Karl Loomis is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Karl Loomis located?
- Karl Loomis's practice location on file with NPPES is 603 N Kalamazoo Ave, Marshall, MI 49068-1076.
- What is Karl Loomis's phone number?
- The practice phone number listed in the NPPES registry for Karl Loomis is (269) 781-4560.
- Is Karl Loomis's NPI active?
- Yes — Karl Loomis's NPI (1689624744) 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.