NPPES file of Aug 9, 2026

Diane M. Pierson, DO

Anatomic Pathology & Clinical Pathology Physician · Ashland, KY

Diane M. Pierson, DO is an anatomic pathology & clinical pathology physician with a practice address in Ashland, Kentucky, and NPI 1821076704, issued on Jan 3, 2006. Check the license (Kentucky 03093, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1821076704
Name
Diane M. Pierson
Credential
DO
Primary taxonomy
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
License numbers
03093 KY
34.010731 OH
Self-reported in NPPES; status is on the state search
Practice location
2201 Lexington Ave, Ashland, KY 41101
Phone
(800) 288-8325
Enumerated
Jan 3, 2006
Record last updated
Oct 4, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(419) 866-5453
Medicaid ID
420048900 MN
Medicare enrollment
Enrolled (PECOS I20080806000542); 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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Also registered at 2201 Lexington Ave

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

  1. Syed Abbas, MDAnatomic Pathology Physician1336701879
  2. Hassan Abul-Khoudoud, MDHospitalist Physician1033255112
  3. Cheryl Adams, CRNACertified Registered Nurse Anesthetist1801861729
  4. Donna Adams, MDFamily Medicine Physician1154381994
  5. Samuel Adams, M.D.Family Medicine Physician1225018104
  6. Ashleigh Adkins, CRNACertified Registered Nurse Anesthetist1225393143

Verify Diane M. Pierson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersKentucky Board of Medical Licensure
    Search for license 03093
    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 Kentucky license search

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The practice group's MIPS final score for 2023 (Medicare payment program): 92.2 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score81.1
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Professional Pathology ServiceAshland, KY

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

Diane M. Pierson among 215 anatomic pathology & clinical pathology physician records in Kentucky

Diane M. Pierson, DO is one of 215 anatomic pathology & clinical pathology physician records with a practice address in Kentucky. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 21% of them.

  • NPI issued2006 · 21% of these records are older, 47% newer
  • In a Medicare fileYes · 64% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2001 · median 2000 among the 125 with a school on file
  • Record last updated2017 · 78% 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 Kentucky 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 Kentucky

There are 215 anatomic pathology & clinical pathology physician records in Kentucky.

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

  1. Linda Eskew, MDAshland, KY 411011326014861
  2. Shamsa Haroon, MDAshland, KY 411011063488559
  3. Malisha Johnson, D.O.Ashland, KY 411011639219009
  4. Katalin Kovacs, MDAshland, KY 411011417923806
  5. James Morris, MDAshland, KY 411011821010034
  6. Gabriel Rodriguez, MDAshland, KY 411011730101940
  7. Alka Khanna, M.D.Ashland, KY 411021447447131
  8. Allan Hallquist, MDMorning View, KY 410631992797443

Common questions

What is Diane M. Pierson, DO's NPI number?

Diane M. Pierson, DO's National Provider Identifier (NPI) is 1821076704, issued on Jan 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Diane M. Pierson, DO located?

The NPPES record lists a practice address at 2201 Lexington Ave, Ashland, KY, 41101. Phone: (800) 288-8325. Providers update this record themselves, so call before visiting.

How can I verify Diane M. Pierson, DO's license?

NPPES lists Kentucky license number 03093, as entered by the provider. Search the Kentucky Board of Medical Licensure at https://web1.ky.gov/GenSearch/LicenseSearch.aspx?AGY=5. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is Diane M. Pierson, DO's MIPS final score?

The 2023 MIPS final score is 92.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.

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.