Harry Randall Niehaus, D.D.S.
Dentist · Saint Peters, MO
Harry Randall Niehaus, D.D.S. is a dentist with a practice address in Saint Peters, Missouri, and NPI 1750336996, issued on May 24, 2006. Check the license (Missouri 12530, as entered in NPPES) with the Missouri board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Harry Randall Niehaus
- Credential
- D.D.S.
- Primary taxonomy
- Dentist 122300000X
- License number
- 12530 MO
Self-reported in NPPES; status is on the state search - Practice location
- 6900 Mexico RD, Saint Peters, MO 63376
- Phone
- (636) 278-1991
- Enumerated
- May 24, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (636) 970-1981
- Entity
- Type 1 · individual
8 nearest dentist records → All 1,647 in Missouri → Look up another NPI →
Also registered at 6900 Mexico RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brian Niehaus, D.D.S.Dentist1316230337
Verify Harry Randall Niehaus in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Missouri board licenses this profession
Search for license 12530Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average dentist in 2024
20 Medicare Part D claims for 17 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin17 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.
Harry Randall Niehaus among 1,647 dentist records in Missouri
Harry Randall Niehaus, D.D.S. is one of 1,647 dentist records with a practice address in Missouri. 62% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 77% newer
- In a Medicare fileYes · 62% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2007 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
37 dentist records list a practice address in Saint Peters
They are 37 of the 1,259 NPPES records with a practice address in Saint Peters, and 1,647 dentist records in Missouri.
All 1,647 in Missouri → Every provider in Saint Peters → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Angelina Anisimova, DDSSaint Peters, MO 633761831238096
- Robert Crabtree, DMDSaint Peters, MO 633761730224577
- William Dale, D.M.D.Saint Peters, MO 633761407065113
- Joseph Evola, DMDSaint Peters, MO 633761952469652
- Charley Handley, D.D.S.Saint Peters, MO 633761518047679
- Richard Herman, DDSSaint Peters, MO 633761568486546
- Amanda Hillis, D.D.S.Saint Peters, MO 633761043538846
- Robert Judd, DDSSaint Peters, MO 633761346343977
Common questions
What is Harry Randall Niehaus, D.D.S.'s NPI number?
Harry Randall Niehaus, D.D.S.'s National Provider Identifier (NPI) is 1750336996, issued on May 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Harry Randall Niehaus, D.D.S. located?
The NPPES record lists a practice address at 6900 Mexico RD, Saint Peters, MO, 63376. Phone: (636) 278-1991. Providers update this record themselves, so call before visiting.
How can I verify Harry Randall Niehaus, D.D.S.'s license?
NPPES lists Missouri license number 12530, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.
How much does Harry Randall Niehaus, D.D.S. prescribe under Medicare Part D?
In 2024, Harry Randall Niehaus, D.D.S. had 20 Medicare Part D claims for 17 beneficiaries; the average among dentist prescribers was 86. 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.