NPPES file of Aug 9, 2026

Joseph Charles Pierchorowicz, M.D.

Internal Medicine Physician · St Louis, MO

Joseph Charles Pierchorowicz, M.D. is an internal medicine physician with a practice address in St Louis, Missouri, and NPI 1679763163, issued on Jul 31, 2007. Check the license (Missouri 2007018771, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1679763163
Name
Joseph Charles Pierchorowicz
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
2007018771 MO
Self-reported in NPPES; status is on the state search
Practice location
6420 Clayton RD, St Louis, MO 63117
Phone
(314) 768-8778
Enumerated
Jul 31, 2007
Record last updated
Jul 31, 2007 (not updated in 19 years: call before relying on the address or phone)
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.
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Also registered at 6420 Clayton RD

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

  1. Hussein AlaawadStudent in an Organized Health Care Education/Training Program1700579729
  2. Suyash Dawadi, MDStudent in an Organized Health Care Education/Training Program1306680848
  3. Habibu Luziga, M.D.Student in an Organized Health Care Education/Training Program1457195471
  4. Vrinda Mahajan, M.D.Internal Medicine Physician1790997724
  5. Kelvin McDaniel, D.O.Ophthalmology Physician1538554258
  6. Simisolaoluwa Popoola, MDStudent in an Organized Health Care Education/Training Program1447140074

Verify Joseph Charles Pierchorowicz 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 2007018771    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

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58 internal medicine physician records list a practice address in St Louis

They are 58 of the 1,420 NPPES records with a practice address in St Louis, and 2,604 internal medicine physician records in Missouri. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 58 in St Louis → All 2,604 in Missouri → Every provider in St Louis →

Other internal medicine physician records in Missouri

  1. Betty Abban, M.D.Springfield, MO1063893162
  2. Amer Abbas, MDSaint Louis, MO1508480666
  3. Fizza Abbas, MDSaint Louis, MO1588079230
  4. Marghoob Abbas, M.D.St Joseph, MO1588603781
  5. Muhammad Khalid Abbas, M.D.Springfield, MO1447877089
  6. Sundas Abbas, MDRichmond Heights, MO1649790486
  7. Hajira Abbasi, DOSaint Louis, MO1194036947
  8. Catey Abbott, DOSaint Louis, MO1699355347
  9. David Abbott, MDRichmond Heights, MO1568448850
  10. Wael Abduljaber, MDSaint Louis, MO1174101489

Common questions

What is Joseph Charles Pierchorowicz, M.D.'s NPI number?

Joseph Charles Pierchorowicz, M.D.'s National Provider Identifier (NPI) is 1679763163, issued on Jul 31, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Joseph Charles Pierchorowicz, M.D. located?

The NPPES record lists a practice address at 6420 Clayton RD, St Louis, MO, 63117. Phone: (314) 768-8778. Providers update this record themselves, so call before visiting.

How can I verify Joseph Charles Pierchorowicz, M.D.'s license?

NPPES lists Missouri license number 2007018771, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.