Karna Colby, M.D.
NPI 1407047913 · Anatomic Pathology & Clinical Pathology Physician · Marion, IL
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karna Colby, M.D. is a Anatomic Pathology & Clinical Pathology Physician provider in Marion, IL (NPI 1407047913).
Provider details
- NPI number
- 1407047913
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 10907 (ND)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,847 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 1,179 | $35 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 221 | $33 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 150 | $27 |
| Pathology Examination of Tissue Using a Microscope, Moderately Low Complexity88304 | 92 | $11 |
| Pathology Examination of Tissue Using a Microscope, Moderately High Complexity88307 | 71 | $78 |
| Special Stained Specimen Slides to Identify Organisms Including Interpretation and Report88312 | 49 | $25 |
Practice location
Mailing address
Additional practice locations (1)
- 222 N 7th StBismarck, ND 58501-4436Phone: (701) 323-6000Fax: (701) 323-5709
Registry dates
- Enumerated
- 2007-08-08
- Last updated
- 2020-11-03
- Certified
- 2020-11-03
Frequently asked questions
- What is Karna Colby's NPI number?
- Karna Colby's National Provider Identifier (NPI) is 1407047913, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karna Colby's specialty?
- Karna Colby is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Karna Colby located?
- Karna Colby's practice location on file with NPPES is 3333 W Deyoung St, Marion, IL 62959-5884.
- What is Karna Colby's phone number?
- The practice phone number listed in the NPPES registry for Karna Colby is (210) 617-4445.
- Does Karna Colby accept Medicare?
- Karna Colby is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karna Colby's NPI active?
- Yes — Karna Colby's NPI (1407047913) is active in the NPPES registry as of the last update on 2020-11-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.