Catherine Martha De Grandville, MD
Family Medicine Physician · Milwaukee, WI
Catherine Martha De Grandville, MD is a family medicine physician with a practice address in Milwaukee, Wisconsin, and NPI 1023299765, issued on Nov 23, 2007. Check the license (Wisconsin 52841-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Catherine Martha De Grandville
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 52841-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 2801 W Kinnickinnic River Pkwy, Milwaukee, WI 53215
- Phone
- (414) 649-6732
- Enumerated
- Nov 23, 2007
- Record last updated
- Jan 22, 2024
- Medicaid ID
- 100011746 WI
- Medicare enrollment
- Enrolled (PECOS I20110321001053); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,765 in Wisconsin → Look up another NPI →
Also registered at 2801 W Kinnickinnic River Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Catherine Martha De Grandville in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 52841-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% more Medicare Part D claims than the average family medicine physician in 2024
7,079 Medicare Part D claims for 629 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 27 claims were for opioids.
Most prescribed
- Atorvastatin Calcium616 claims
- Gabapentin273 claims
- Amlodipine Besylate266 claims
- Pantoprazole Sodium223 claims
- Losartan Potassium220 claims
- Metformin Hcl Er201 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.
Bills Medicare through one group practice
- Aurora Medical Group, Inc.Elkhorn, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Catherine Martha De Grandville among 3,765 family medicine physician records in Wisconsin
Catherine Martha De Grandville, MD is one of 3,765 family medicine physician records with a practice address in Wisconsin. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 54% of them.
- NPI issued2007 · 54% of these records are older, 41% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2004 · median 2007 among the 2,347 with a school on file
- Record last updated2024 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
299 family medicine physician records list a practice address in Milwaukee
They are 299 of the 18,389 NPPES records with a practice address in Milwaukee, and 3,765 family medicine physician records in Wisconsin.
All 3,765 in Wisconsin → Every provider in Milwaukee → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Alvaro Aleman, MDMilwaukee, WI 532151780645879
- Dennis Baumgardner, MDMilwaukee, WI 532151730198466
- Rambha Bhatia, MDMilwaukee, WI 532151922017664
- John Brill, MDMilwaukee, WI 532151285643932
- Patricia Cabral, M.D.Milwaukee, WI 532151194720706
- Sergio Casaclang, MDMilwaukee, WI 532151871502906
- Seth Dubry, MDMilwaukee, WI 532151467567636
- Jodi Dykstra, MDMilwaukee, WI 532151306866066
Common questions
What is Catherine Martha De Grandville, MD's NPI number?
Catherine Martha De Grandville, MD's National Provider Identifier (NPI) is 1023299765, issued on Nov 23, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Catherine Martha De Grandville, MD located?
The NPPES record lists a practice address at 2801 W Kinnickinnic River Pkwy, Milwaukee, WI, 53215. Phone: (414) 649-6732. Providers update this record themselves, so call before visiting.
How can I verify Catherine Martha De Grandville, MD's license?
NPPES lists Wisconsin license number 52841-20, 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 Catherine Martha De Grandville, MD prescribe under Medicare Part D?
In 2024, Catherine Martha De Grandville, MD had 7,079 Medicare Part D claims for 629 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.