NPPES file of Aug 9, 2026

Robert C. Nielsen, DO

General Practice Physician · Osage Beach, MO

Robert C. Nielsen, DO is a general practice physician with a practice address in Osage Beach, Missouri, and NPI 1407835085, issued on Jan 12, 2006. Check the license (Missouri 103086, 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, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1407835085
Name
Robert C. Nielsen
Credential
DO
Primary taxonomy
General Practice Physician 208D00000X
License numbers
103086 MO
DO103086 MO
Self-reported in NPPES; status is on the state search
Practice location
3870 Columbia Ave, Osage Beach, MO 65065
Phone
(573) 302-7490
Enumerated
Jan 12, 2006
Record last updated
Feb 12, 2025
Fax
(573) 302-7895
Medicaid ID
246670707 MO
Medicare enrollment
Enrolled (PECOS I20120111000793); accepts Medicare assignment
Medical or professional school
At Still University Of Health Sciences, College Of Osteo Med, Kirksville, 1988
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 3870 Columbia Ave

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

  1. David Chisholm, DOObstetrics & Gynecology Physician1366433419
  2. Whitney Cline, DOPediatrics Physician1275670101
  3. Holland Haynie, MD26719Family Medicine Physician1154419182
  4. Katherine Keeler, WHNPWomen's Health Nurse Practitioner1598810210
  5. Elizabeth Kermis, D.O.Obstetrics & Gynecology Physician1962814434
  6. Mario Macias, DOObstetrics & Gynecology Physician1174881601

Verify Robert C. Nielsen 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 103086
    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.

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93% fewer Medicare Part D claims than the average general practice physician in 2024

202 Medicare Part D claims for 46 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D.

  1. Robert Nielsen202
  2. Specialty average3,030

Most prescribed

  1. Gabapentin11 claims
  2. Hydroxyzine Hcl11 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.

Bills Medicare through one group practice

  1. Osage Beach Center For Behavioral Health, LLCOsage Beach, MO

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

Robert C. Nielsen among 191 general practice physician records in Missouri

Robert C. Nielsen, DO is one of 191 general practice physician records with a practice address in Missouri. 60% 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 10% of them.

  • NPI issued2006 · 10% of these records are older, 62% newer
  • In a Medicare fileYes · 60% of these records are
  • In the CMS Doctors and Clinicians fileYes · 32% of these records are
  • Graduated1988 · median 2005 among the 61 with a school on file
  • Record last updated2025 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208D00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

General Practice Physician providers in Missouri

There are 191 general practice physician records in Missouri.

The 8 general practice physician records with the nearest ZIP codes

  1. James Ennis, DOHolts Summit, MO 650431881666865
  2. Eric Penton, MDHermann, MO 650411942837562
  3. Victor Parker, MDWhiteman Afb, MO 650351902243876
  4. Carey Vaughan, DOJefferson City, MO 651011821352857
  5. Mark Link, M.D.Jefferson City, MO 651091679514293
  6. Wanda Wilson, DOJefferson City, MO 651091033182118
  7. Jan Finney, DOCalifornia, MO 650181295707693
  8. Travis Birkhead, MDColumbia, MO 652011477016301

Common questions

What is Robert C. Nielsen, DO's NPI number?

Robert C. Nielsen, DO's National Provider Identifier (NPI) is 1407835085, issued on Jan 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Robert C. Nielsen, DO located?

The NPPES record lists a practice address at 3870 Columbia Ave, Osage Beach, MO, 65065. Phone: (573) 302-7490. Providers update this record themselves, so call before visiting.

How can I verify Robert C. Nielsen, DO's license?

NPPES lists Missouri license number 103086, 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 Robert C. Nielsen, DO prescribe under Medicare Part D?

In 2024, Robert C. Nielsen, DO had 202 Medicare Part D claims for 46 beneficiaries; the average among general practice physician prescribers was 3,030. Part D covers Medicare prescriptions only.

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.