NPPES file of Aug 9, 2026

Colby Arthur Fernelius, M.D.

Anatomic Pathology & Clinical Pathology Physician · Ogden, UT

Colby Arthur Fernelius, M.D. is an anatomic pathology & clinical pathology physician with a practice address in Ogden, Utah, and NPI 1851561831, issued on Mar 6, 2008. Check the license (Utah 12301074-1205, as entered in NPPES) on the Utah Medical Licensing Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1851561831
Name
Colby Arthur Fernelius
Credential
M.D.
Primary taxonomy
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
License number
12301074-1205 UT
Self-reported in NPPES; status is on the state search
Practice location
5475 S 500 E, Ogden, UT 84405
Phone
(801) 479-2390
Enumerated
Mar 6, 2008
Record last updated
Nov 13, 2023
Medicare enrollment
Enrolled (PECOS I20210623002637); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest anatomic pathology & clinical pathology physician records → All 146 in Utah → Look up another NPI →

Also registered at 5475 S 500 E

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Christine Anderegg, MDEmergency Medicine Physician1720048887
  2. Connor Anderl, CRNACertified Registered Nurse Anesthetist1437160645
  3. James Arango, MDEmergency Medicine Physician1235155953
  4. D. Joan Balcombe, MDEmergency Medicine Physician1629037361
  5. Rachel Baltazar, CRNACertified Registered Nurse Anesthetist1841124013
  6. Clayton Bass, MDEmergency Medicine Physician1972598506

Verify Colby Arthur Fernelius in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersUtah Medical Licensing Board
    Search for license 12301074-1205    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Utah license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Associates OF Pathology PCOgden, UT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Colby Arthur Fernelius among 146 anatomic pathology & clinical pathology physician records in Utah

Colby Arthur Fernelius, M.D. is one of 146 anatomic pathology & clinical pathology physician records with a practice address in Utah. 57% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 44% of them.

  • NPI issued2008 · 44% of these records are older, 51% newer
  • In a Medicare fileYes · 57% of these records are
  • In the CMS Doctors and Clinicians fileYes · 49% of these records are
  • Graduated2006 · median 2007 among the 72 with a school on file
  • Record last updated2023 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0102X and a Utah practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anatomic Pathology & Clinical Pathology Physician providers in Utah

There are 146 anatomic pathology & clinical pathology physician records in Utah.

All 146 in Utah → Every provider in Ogden → Anatomic Pathology & Clinical Pathology Physician nationwide →

The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes

  1. Val Johnson, M.D.Ogden, UT 844051902022536
  2. Mark Orton, MDOgden, UT 844051326090465
  3. David Steiner, MDOgden, UT 844051922050764
  4. Jan Woods, M.D.Ogden, UT 844051477584290
  5. Skylar Alsop, M.D.Ogden, UT 844031114133584
  6. Richard Iverson, D.O.Ogden, UT 844031568788602
  7. Randy Lamb, MDOgden, UT 844031437303914
  8. Paul Thorpe, MDOgden, UT 844031538142922

Common questions

What is Colby Arthur Fernelius, M.D.'s NPI number?

Colby Arthur Fernelius, M.D.'s National Provider Identifier (NPI) is 1851561831, issued on Mar 6, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Colby Arthur Fernelius, M.D. located?

The NPPES record lists a practice address at 5475 S 500 E, Ogden, UT, 84405. Phone: (801) 479-2390. Providers update this record themselves, so call before visiting.

How can I verify Colby Arthur Fernelius, M.D.'s license?

NPPES lists Utah license number 12301074-1205, as entered by the provider. Search the Utah Medical Licensing Board at https://secure.utah.gov/llv/search/index.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.