NPPES file of Aug 9, 2026

Gina Rae Grenfell, D.D.S.

Dentist · Sturgeon Bay, WI

Gina Rae Grenfell, D.D.S. is a dentist with a practice address in Sturgeon Bay, Wisconsin, and NPI 1942568787, issued on Apr 30, 2012. Check the license (Wisconsin 6892-15, as entered in NPPES) with the Wisconsin 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
1942568787
Name
Gina Rae Grenfell
Credential
D.D.S.
Primary taxonomy
Dentist 122300000X
License number
6892-15 WI
Self-reported in NPPES; status is on the state search
Practice location
30 N 18TH Ave # 1, Sturgeon Bay, WI 54235
Phone
(920) 743-6976
Enumerated
Apr 30, 2012
Record last updated
Jul 10, 2014 (not updated in 12 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.
Download card Updates feed

Verify Gina Rae Grenfell in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
    Search for license 6892-15
    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 Wisconsin 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.

41% fewer Medicare Part D claims than the average dentist in 2024

51 Medicare Part D claims for 37 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D.

  1. Gina Grenfell51
  2. Specialty average86

Most prescribed

  1. Amoxicillin31 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.

Industry payments in 2024: $128.13

2 payments; by number, the most common kind was food and beverage; the largest payer was Straumann USA LLC. 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. Gina Grenfell$128.13
  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.

Gina Rae Grenfell among 1,750 dentist records in Wisconsin

Gina Rae Grenfell, D.D.S. is one of 1,750 dentist records with a practice address in Wisconsin. 60% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 53% of them.

  • NPI issued2012 · 53% of these records are older, 44% newer
  • In a Medicare fileYes · 60% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2014 · 67% 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 Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dentist providers in Wisconsin

There are 1,750 dentist records in Wisconsin.

The 8 dentist records with the nearest ZIP codes

  1. Sheila Agullana, D.D.S.Sturgeon Bay, WI 542351508122821
  2. Patrick Berg, DDSSturgeon Bay, WI 542351770195810
  3. Joel Eggert, D.D.S.Sturgeon Bay, WI 542351962629485
  4. Jack Dooley, DDSSister Bay, WI 542341699515759
  5. John Ludwigsen, DDSSister Bay, WI 542341669540589
  6. Michael Furlong, D.D.S.Two Rivers, WI 542411760546048
  7. David Loritz, DDSTwo Rivers, WI 542411558451906
  8. Jamie Meunier, DMDTwo Rivers, WI 542411023594744

Common questions

What is Gina Rae Grenfell, D.D.S.'s NPI number?

Gina Rae Grenfell, D.D.S.'s National Provider Identifier (NPI) is 1942568787, issued on Apr 30, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Gina Rae Grenfell, D.D.S. located?

The NPPES record lists a practice address at 30 N 18TH Ave # 1, Sturgeon Bay, WI, 54235. Phone: (920) 743-6976. Providers update this record themselves, so call before visiting.

How can I verify Gina Rae Grenfell, D.D.S.'s license?

NPPES lists Wisconsin license number 6892-15, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.

How much does Gina Rae Grenfell, D.D.S. prescribe under Medicare Part D?

In 2024, Gina Rae Grenfell, D.D.S. had 51 Medicare Part D claims for 37 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.