NPPES file of Aug 9, 2026

Mark L. Marz, DDS

Dentist · Iowa City, IA

Mark L. Marz, DDS is a dentist with a practice address in Iowa City, Iowa, and NPI 1184772238, issued on Jan 8, 2007. Check the license (Iowa 6351, as entered in NPPES) with the Iowa board that licenses this profession; 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
1184772238
Name
Mark L. Marz
Credential
DDS
Primary taxonomy
Dentist 122300000X
License number
6351 IA
Self-reported in NPPES; status is on the state search
Practice location
322 Dental Science Bldg S, Iowa City, IA 52242
Phone
(319) 335-7440
Enumerated
Jan 8, 2007
Record last updated
Jul 13, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(319) 333-7451
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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8 nearest dentist records → All 726 in Iowa → Look up another NPI →

Also registered at 322 Dental Science Bldg S

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

  1. Abbey Ambroson, D.D.SStudent in an Organized Health Care Education/Training Program1568727816
  2. Jed Arbon, DDSStudent in an Organized Health Care Education/Training Program1902208192
  3. Robert Bowers, DDSGeneral Practice Dentistry1659724656
  4. Michael Callan, DDS, MSOrthodontics and Dentofacial Orthopedics Dentistry1124385448
  5. John Carroll, D.D.S.Endodontics1437483609
  6. Joshua Cohen, D.D.S.Student in an Organized Health Care Education/Training Program1043358039

Verify Mark L. Marz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Iowa board licenses this profession
    Search for license 6351    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 Iowa 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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Mark L. Marz among 726 dentist records in Iowa

Mark L. Marz, DDS is one of 726 dentist records with a practice address in Iowa. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 26% of them.

  • NPI issued2007 · 26% of these records are older, 60% newer
  • In a Medicare fileNo · 63% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2020 · 69% 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 Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dentist providers in Iowa

There are 726 dentist records in Iowa. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 726 in Iowa → Every provider in Iowa City → Dentist nationwide →

The 8 dentist records with the nearest ZIP codes

  1. Murray Bouschlicher, DDSIowa City, IA 522421750485769
  2. James Clancy, BS DDS MSIowa City, IA 522421265536262
  3. Howard Cowen, DDS MSIowa City, IA 522421073617072
  4. Alberto Gasparoni, DDS MS PHDIowa City, IA 522421508960501
  5. Justine Kolker, DDS MS PHDIowa City, IA 522421396849089
  6. Tad Mabry, D.D.S.Iowa City, IA 522421558424051
  7. Quinn Morarend, DDSIowa City, IA 522421407950405
  8. Mike Murrell, DDSIowa City, IA 522421376593426

Common questions

What is Mark L. Marz, DDS's NPI number?

Mark L. Marz, DDS's National Provider Identifier (NPI) is 1184772238, issued on Jan 8, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Mark L. Marz, DDS located?

The NPPES record lists a practice address at 322 Dental Science Bldg S, Iowa City, IA, 52242. Phone: (319) 335-7440. Providers update this record themselves, so call before visiting.

How can I verify Mark L. Marz, DDS's license?

NPPES lists Iowa license number 6351, as entered by the provider. Search the Iowa 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. 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.