Registry data as of Aug 27, 2026

James Day, D.O.

Family Medicine Physician · Saint Joseph, MO

James Day, D.O. is a family medicine physician with a practice address in Saint Joseph, Missouri, and NPI 1841218948, issued on Jul 17, 2006. Check the license (Missouri R8E62, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1841218948
Name
James Day
Credential
D.O.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
R8E62 MO
Self-reported in NPPES; status is on the state search
Practice location
5210 N Belt Hwy, Saint Joseph, MO 64506
Phone
(816) 271-4951
Enumerated
Jul 17, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 5210 N Belt Hwy

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

  1. Whitney Atha, APRNFamily Nurse Practitioner1790108348
  2. Rayyan Bhuiyan, MDFamily Medicine Physician1780236794
  3. Tara BrownFamily Medicine Physician1659697738
  4. Andrea CoyFamily Nurse Practitioner1467201897
  5. Kylie DishmanRegistered Nurse1346631520
  6. Melissa Farris, APRNFamily Nurse Practitioner1205259942

Verify James Day in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
    Search for license R8E62
    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 Missouri 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.

4.5 times the Medicare Part D claims of the average family medicine physician in 2024

15,833 Medicare Part D claims for 860 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 2,023 claims were for opioids.

  1. James Day15,833
  2. Specialty average3,519

Most prescribed

  1. Hydrocodone-Acetaminophen1,084 claims
  2. Atorvastatin Calcium555 claims
  3. Alprazolam526 claims
  4. Gabapentin434 claims
  5. Amlodipine Besylate402 claims
  6. Omeprazole385 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's Medicare quality score for 2023: 76.9 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 score66.5
  2. Costout of 100 · 30%56.5
  3. Promoting interoperabilityout of 100 · 25%100.0
  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).

Industry payments in 2024: $329.14

20 payments, mostly food and beverage; the largest payer was Abbvie Inc.. The 53,013 providers of this specialty with any payment received $861.30 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. James Day$329.14
  2. Specialty average$861.30

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

One hospital or facility affiliation

  1. Heartland Regional Medical CenterSaint Joseph, MO

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

39 family medicine physician records list a Saint Joseph practice address

They are 39 of the 1,219 NPPES records with a Saint Joseph practice address, and 2,920 family medicine physician records in Missouri.

Other family medicine physician records in Missouri

  1. Mohammad Abbas, DOKirksville, MO1518537679
  2. Karam Abdelmasih, MD, APFestus, MO1093288508
  3. Afsheen Abdullah Patel, MDLees Summit, MO1598070377
  4. Christopher Abercrombie, DOArnold, MO1093787558
  5. Avery Abernathy, D.O.Kansas City, MO1013207836
  6. Kristia Abernathy, MDSaint Louis, MO1710545405
  7. Grant Abkemeier, DOColumbia, MO1922933712
  8. Beatrice Abraham, DOLebanon, MO1861056004
  9. John Abraham, M.D.Springfield, MO1760595136
  10. Samer Abu-Amer, M.D.Independence, MO1154880474

Common questions

What is James Day, D.O.'s NPI number?

James Day, D.O.'s National Provider Identifier (NPI) is 1841218948, issued on Jul 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is James Day, D.O. located?

The NPPES record lists a practice address at 5210 N Belt Hwy, Saint Joseph, MO, 64506. Phone: (816) 271-4951. Providers update this record themselves, so call before visiting.

How can I verify James Day, D.O.'s license?

NPPES lists Missouri license number R8E62, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does James Day, D.O. prescribe under Medicare Part D?

In 2024, James Day, D.O. had 15,833 Medicare Part D claims for 860 beneficiaries; the average among family medicine physician prescribers was 3,519. Part D covers Medicare prescriptions only.

What is James Day, D.O.'s Medicare quality score?

The 2023 MIPS final score is 76.9 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), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.