Marilyn Mason McMillen, MD
Anatomic Pathology & Clinical Pathology Physician · Somerset, KY
Marilyn Mason McMillen, MD is an anatomic pathology & clinical pathology physician with a practice address in Somerset, Kentucky, and NPI 1629046578, issued on Mar 8, 2006. Check the license (Kentucky 20206, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Marilyn Mason McMillen
- Credential
- MD
- Primary taxonomy
- Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
- License number
- 20206 KY
Self-reported in NPPES; status is on the state search - Practice location
- 305 Langdon St, Somerset, KY 42501
- Phone
- (606) 678-8800
- Enumerated
- Mar 8, 2006
- Record last updated
- Oct 21, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (606) 679-5238
- Medicaid ID
- 64202062 KY
- Entity
- Type 1 · individual
8 nearest anatomic pathology & clinical pathology physician records → All 215 in Kentucky → Look up another NPI →
Also registered at 305 Langdon St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alvin Perkins, MDAnatomic Pathology & Clinical Pathology Physician1477514883
Verify Marilyn Mason McMillen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersKentucky Board of Medical Licensure
Search for license 20206Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 93.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Marilyn Mason McMillen among 215 anatomic pathology & clinical pathology physician records in Kentucky
Marilyn Mason McMillen, MD 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 fileNo · 58% of these records are
- Record last updated2014 · 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.
All 215 in Kentucky → Every provider in Somerset → Anatomic Pathology & Clinical Pathology Physician nationwide →
The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes
- Alvin Perkins, MDSomerset, KY 425011477514883
- Amal Anga, MDSomerset, KY 425031629288808
- Richard Bauer, MDMadisonville, KY 424311770689960
- Roberto Corpus, MDMadisonville, KY 424311679679849
- Primilina Corpus, MDHenderson, KY 424201063489987
- Brian Ward, MDHartford, KY 423471578552600
- Ritchie Clark, M.D.Owensboro, KY 423031639156284
- Dudley E. Day, M.D.Owensboro, KY 423031346311891
Common questions
What is Marilyn Mason McMillen, MD's NPI number?
Marilyn Mason McMillen, MD's National Provider Identifier (NPI) is 1629046578, issued on Mar 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marilyn Mason McMillen, MD located?
The NPPES record lists a practice address at 305 Langdon St, Somerset, KY, 42501. Phone: (606) 678-8800. Providers update this record themselves, so call before visiting.
How can I verify Marilyn Mason McMillen, MD's license?
NPPES lists Kentucky license number 20206, 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 Marilyn Mason McMillen, MD's MIPS final score?
The 2023 MIPS final score is 93.1 of 100. 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.