Zachary Marshall, D.D.S.
Dentist · Greenfield, WI
Zachary Marshall, D.D.S. is a dentist with a practice address in Greenfield, Wisconsin, and NPI 1194104158, issued on May 23, 2015. Check the license (Wisconsin 1001114, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Zachary Marshall
- Credential
- D.D.S.
- Primary taxonomy
- Dentist 122300000X
- License number
- 1001114 WI
Self-reported in NPPES; status is on the state search - Practice location
- 4110 W Carpenter Ave, Greenfield, WI 53221
- Phone
- (715) 829-9576
- Enumerated
- May 23, 2015
- Entity
- Type 1 · individual
Verify Zachary Marshall in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 1001114Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
70% more Medicare Part D claims than the average dentist in 2024
146 Medicare Part D claims for 88 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. 21 claims were for opioids.
Most prescribed
- Amoxicillin92 claims
- Hydrocodone-Acetaminophen14 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: $41.99
2 payments, mostly food and beverage; the largest payer was Envista Holdings Corporation. 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
14 dentist records list a practice address in Greenfield
They are 14 of the 961 NPPES records with a practice address in Greenfield, and 1,750 dentist records in Wisconsin.
All 14 in Greenfield → All 1,750 in Wisconsin → Every provider in Greenfield →
Other dentist records in Wisconsin
- Buhisa AbdelkafiRacine, WI1881383586
- Hooman Abdolisereshki, DDSPlymouth, WI1619369279
- Megan Abell, DDSMadison, WI1346477361
- Matthew Abraham, DDSLadysmith, WI1912350448
- Nicolas Abujamra, DDS, MSGreen Bay, WI1720123201
- Guillermo Aceves, DDSJanesville, WI1447090766
- Amber Ackerman, DMDMount Horeb, WI1497646509
- Erica Adams, DMDMadison, WI1275101909
- Hala Afifa, DDSMilwaukee, WI1891363198
- Aarushi Agarwal, DMDMadison, WI1841977717
Common questions
What is Zachary Marshall, D.D.S.'s NPI number?
Zachary Marshall, D.D.S.'s National Provider Identifier (NPI) is 1194104158, issued on May 23, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Zachary Marshall, D.D.S. located?
The NPPES record lists a practice address at 4110 W Carpenter Ave, Greenfield, WI, 53221. Phone: (715) 829-9576. Providers update this record themselves, so call before visiting.
How can I verify Zachary Marshall, D.D.S.'s license?
NPPES lists Wisconsin license number 1001114, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Zachary Marshall, D.D.S. prescribe under Medicare Part D?
In 2024, Zachary Marshall, D.D.S. had 146 Medicare Part D claims for 88 beneficiaries; the average among dentist prescribers was 86. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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) 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 27, 2026.