NPPES file of Aug 9, 2026

Gregory Stephen Herzler, D.D.S.

General Practice Dentistry · Saginaw, MI

Gregory Stephen Herzler, D.D.S. is a general practice dentistry with a practice address in Saginaw, Michigan, and NPI 1235120064, issued on Nov 1, 2005. Check the license (Michigan 12605, as entered in NPPES) with the Michigan 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
1235120064
Name
Gregory Stephen Herzler
Credential
D.D.S.
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
12605 MI
Self-reported in NPPES; status is on the state search
Practice location
4977 Mackinaw RD, Saginaw, MI 48603
Phone
(989) 793-7733
Enumerated
Nov 1, 2005
Record last updated
Jul 13, 2026
Fax
(989) 793-6347
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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Verify Gregory Stephen Herzler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Michigan board licenses this profession
    Search for license 12605
    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 Michigan 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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Gregory Stephen Herzler among 4,088 general practice dentistry records in Michigan

Gregory Stephen Herzler, D.D.S. is one of 4,088 general practice dentistry records with a practice address in Michigan. 61% 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 98% newer
  • In a Medicare fileNo · 61% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2026 · 74% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

54 general practice dentistry records list a practice address in Saginaw

They are 54 of the 6,008 NPPES records with a practice address in Saginaw, and 4,088 general practice dentistry records in Michigan. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Paul Allen, D.D.S.Saginaw, MI 486031740375187
  2. Kevin Bone, D.D.S.Saginaw, MI 486031669488862
  3. Michael Call, D.D.S.Saginaw, MI 486031710060785
  4. William Lichon, DDSSaginaw, MI 486031205977709
  5. Roger Mead, D.D.S.Saginaw, MI 486031326262593
  6. Scott Nigl, D.D.S.Saginaw, MI 486031760686562
  7. Robert Puszykowski, D.D.SSaginaw, MI 486031487742789
  8. Donald Sabourin, D.D.S.Saginaw, MI 486031154396968

Common questions

What is Gregory Stephen Herzler, D.D.S.'s NPI number?

Gregory Stephen Herzler, D.D.S.'s National Provider Identifier (NPI) is 1235120064, issued on Nov 1, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Stephen Herzler, D.D.S. located?

The NPPES record lists a practice address at 4977 Mackinaw RD, Saginaw, MI, 48603. Phone: (989) 793-7733. Providers update this record themselves, so call before visiting.

How can I verify Gregory Stephen Herzler, D.D.S.'s license?

NPPES lists Michigan license number 12605, as entered by the provider. Search the Michigan 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.

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.