James Harker, MD
NPI 1841251451 · Anatomic Pathology & Clinical Pathology Physician · Rockford, IL
James Harker, MD is a Anatomic Pathology & Clinical Pathology Physician provider in Rockford, IL (NPI 1841251451).
Provider details
- NPI number
- 1841251451
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
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
83% 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
- 2006-03-31
- Last updated
- 2007-07-08
Frequently asked questions
- What is James Harker's NPI number?
- James Harker's National Provider Identifier (NPI) is 1841251451, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Harker's specialty?
- James Harker is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is James Harker located?
- James Harker's practice location on file with NPPES is 2400 N Rockton Ave, Rockford, IL 61103-3655.
- What is James Harker's phone number?
- The practice phone number listed in the NPPES registry for James Harker is (815) 971-5000.
- Is James Harker's NPI active?
- Yes — James Harker's NPI (1841251451) 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.