NPPES file of Aug 9, 2026

Marcus Weiser, DO

Family Medicine Physician · Onaga, KS

Marcus Weiser, DO is a family medicine physician with a practice address in Onaga, Kansas, and NPI 1598993065, issued on Jun 23, 2009. Check the license (Kansas 05-34404, as entered in NPPES) on the Kansas State Board of Healing Arts; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1598993065
Name
Marcus Weiser
Credential
DO
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
05-34404 KS
7189 KS
Self-reported in NPPES; status is on the state search
Practice location
114 W 8TH St, Onaga, KS 66521
Phone
(785) 889-4241
Enumerated
Jun 23, 2009
Record last updated
Oct 29, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(785) 889-4749
Medicare enrollment
Enrolled (PECOS I20110209000104); accepts Medicare assignment
Medical or professional school
Kansas City University Of Physicians And Surgeons, 2009
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 114 W 8TH St

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

  1. Michele Reisinger, ARNP-CNurse Practitioner1821078353
  2. Merica Surdez, APRNNurse Practitioner1043668338

Verify Marcus Weiser in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersKansas State Board of Healing Arts
    Search for license 05-34404
    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 Kansas 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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93% more Medicare Part D claims than the average family medicine physician in 2024

6,825 Medicare Part D claims for 372 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 249 claims were for opioids.

  1. Marcus Weiser6,825
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium337 claims
  2. Pantoprazole Sodium230 claims
  3. Levothyroxine Sodium218 claims
  4. Amlodipine Besylate199 claims
  5. Furosemide199 claims
  6. Gabapentin194 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 MIPS final score for 2023 (Medicare payment program): 98.3 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. Qualitynot scored (reweighted)
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%98.0
  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: $91.13

5 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Marcus Weiser$91.13
  2. Specialty average$902.55

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

Bills Medicare through one group practice

  1. Community Healthcare System IncOnaga, KS

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

Marcus Weiser among 1,970 family medicine physician records in Kansas

Marcus Weiser, DO is one of 1,970 family medicine physician records with a practice address in Kansas. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 58% of them.

  • NPI issued2009 · 58% of these records are older, 39% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2009 · median 2006 among the 1,164 with a school on file
  • Record last updated2020 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Kansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

3 family medicine physician records list a practice address in Onaga

They are 3 of the 27 NPPES records with a practice address in Onaga, and 1,970 family medicine physician records in Kansas.

The 8 family medicine physician records with the nearest ZIP codes

  1. Benjamin Harstine, MDOnaga, KS 665211649852997
  2. Thomas Walsh, M.D.Onaga, KS 665211063482115
  3. Carrie Hagemann, D.O.Osage City, KS 665231780791699
  4. Christopher Jenks, MDOsage City, KS 665231528357480
  5. James Seeman, M.D.Osage City, KS 665231760410435
  6. Michael Keehn, MDNetawaka, KS 665161386610111
  7. Yvonne McBride, NURSE PRACTITIONERMilford, KS 665141316605496
  8. James Bear, MDMayetta, KS 665091346467230

Common questions

What is Marcus Weiser, DO's NPI number?

Marcus Weiser, DO's National Provider Identifier (NPI) is 1598993065, issued on Jun 23, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Marcus Weiser, DO located?

The NPPES record lists a practice address at 114 W 8TH St, Onaga, KS, 66521. Phone: (785) 889-4241. Providers update this record themselves, so call before visiting.

How can I verify Marcus Weiser, DO's license?

NPPES lists Kansas license number 05-34404, as entered by the provider. Search the Kansas State Board of Healing Arts at https://www.ksbha.ks.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Marcus Weiser, DO prescribe under Medicare Part D?

In 2024, Marcus Weiser, DO had 6,825 Medicare Part D claims for 372 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

What is Marcus Weiser, DO's MIPS final score?

The 2023 MIPS final score is 98.3 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.