Joseph Herzog, M.D.
Obstetrics & Gynecology Physician · Brookfield, WI
Joseph Herzog, M.D. is an obstetrics & gynecology physician with a practice address in Brookfield, Wisconsin, and NPI 1508859901, issued on Aug 31, 2005. Check the license (Wisconsin 32304, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Joseph Herzog
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 32304 WI
Self-reported in NPPES; status is on the state search - Practice location
- 17280 W North Ave, Brookfield, WI 53045
- Phone
- (262) 754-8000
- Enumerated
- Aug 31, 2005
- Record last updated
- Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (262) 754-8008
- Medicaid IDs
- 32666500 WI
32033800 WI - Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 796 in Wisconsin → Look up another NPI →
Also registered at 17280 W North Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kelli Anderson, PTAPhysical Therapy Assistant1942260211
- Tiffany Anewenter-Grinker, OTMassage Therapist1730152968
- Linda Anton, MSSpeech-Language Pathologist1124091350
- Dawn Ashenbrenner, PTPhysical Therapist1558554972
- Donald Baccus, M.D.Gynecology Physician1538152962
- Debra Bahr, MA CCC SLPSpeech-Language Pathologist1154394377
Verify Joseph Herzog in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 32304Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
73 Medicare Part D claims for 30 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Estradiol14 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.
Joseph Herzog among 796 obstetrics & gynecology physician records in Wisconsin
Joseph Herzog, M.D. is one of 796 obstetrics & gynecology physician records with a practice address in Wisconsin. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2007 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Wisconsin
There are 796 obstetrics & gynecology physician records in Wisconsin.
All 796 in Wisconsin → Every provider in Brookfield → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Patricia Barwig, MDBrookfield, WI 530451235194499
- Douglas Clark, MDBrookfield, WI 530451821308974
- Melanie Delaney, M.D.Brookfield, WI 530451891061883
- Roseann Gumina, M.D.Brookfield, WI 530451295728681
- Anthony Hoang, MDBrookfield, WI 530451376597419
- Hillary Kufahl Janicki, M.D.Brookfield, WI 530451871793612
- Candice Lovell, M.D.Brookfield, WI 530451780759670
- Steven McCann, MDBrookfield, WI 530451932165636
Common questions
What is Joseph Herzog, M.D.'s NPI number?
Joseph Herzog, M.D.'s National Provider Identifier (NPI) is 1508859901, issued on Aug 31, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Joseph Herzog, M.D. located?
The NPPES record lists a practice address at 17280 W North Ave, Brookfield, WI, 53045. Phone: (262) 754-8000. Providers update this record themselves, so call before visiting.
How can I verify Joseph Herzog, M.D.'s license?
NPPES lists Wisconsin license number 32304, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Joseph Herzog, M.D. prescribe under Medicare Part D?
In 2024, Joseph Herzog, M.D. had 73 Medicare Part D claims for 30 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.