NPPES file of Aug 9, 2026

Robert Knox Massie, DDS

Dentist · Saint Louis, MO

Robert Knox Massie, DDS is a dentist with a practice address in Saint Louis, Missouri, and NPI 1619961612, issued on Sep 6, 2005. Check the license (Missouri 2001005623, as entered in NPPES) with the Missouri board that licenses this profession; 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
1619961612
Name
Robert Knox Massie
Credential
DDS
Primary taxonomy
Dentist 122300000X
License number
2001005623 MO
Self-reported in NPPES; status is on the state search
Practice location
401 Holly Hills Ave, Saint Louis, MO 63111
Phone
(314) 481-1615
Enumerated
Sep 6, 2005
Record last updated
Jul 13, 2026
Fax
(314) 353-1310
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

8 nearest dentist records → All 1,647 in Missouri → Look up another NPI →

Also registered at 401 Holly Hills Ave

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

  1. Esther Adade, MDFamily Medicine Physician1245214162
  2. Jaron Asher, M.D.Psychiatry Physician1154333433
  3. Nancy Bauer, MDPediatrics Physician1154431336
  4. Daniel Berg, MDInternal Medicine Physician1013947555
  5. Robert Besancenez, MDStudent in an Organized Health Care Education/Training Program1740984673
  6. Brian Braumiller, DOPsychiatry Physician1710181029

Verify Robert Knox Massie in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Missouri board licenses this profession
    Search for license 2001005623    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
Find 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Industry payments in 2024: $19.33

1 payment: food and beverage; the largest payer was Dentsply Sirona Inc. The 31,974 providers of this specialty with any payment received $540.36 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Robert Massie$19.33
  2. Specialty average$540.36

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

Robert Knox Massie among 1,647 dentist records in Missouri

Robert Knox Massie, DDS 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 96% 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 updated2026 · 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).

Dentist providers in Missouri

There are 1,647 dentist records in Missouri.

All 1,647 in Missouri → Every provider in Saint Louis → Dentist nationwide →

The 8 dentist records with the nearest ZIP codes

  1. Lisa Bush, DENTISTSaint Louis, MO 631111326022856
  2. Priya Dey, DDSSaint Louis, MO 631111982482162
  3. Manijeh Felfeli, DMDSaint Louis, MO 631111780373712
  4. Carol Horton-Henley, DDSSaint Louis, MO 631111477554848
  5. Raymond Skosky, DDSSaint Louis, MO 631111548387681
  6. Angela Spoljaric, DMDSaint Louis, MO 631111235114489
  7. Nawal Ahmed, DMDSaint Louis, MO 631121710989504
  8. Colby Allen, DDSSaint Louis, MO 631101710848338

Common questions

What is Robert Knox Massie, DDS's NPI number?

Robert Knox Massie, DDS's National Provider Identifier (NPI) is 1619961612, issued on Sep 6, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Robert Knox Massie, DDS located?

The NPPES record lists a practice address at 401 Holly Hills Ave, Saint Louis, MO, 63111. Phone: (314) 481-1615. Providers update this record themselves, so call before visiting.

How can I verify Robert Knox Massie, DDS's license?

NPPES lists Missouri license number 2001005623, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.