Jillian Ewing Haas, M.D.
Internal Medicine Physician · Waukesha, WI
Jillian Ewing Haas, M.D. is an internal medicine physician with a practice address in Waukesha, Wisconsin, and NPI 1982929410, issued on Mar 27, 2010. Check the license (Wisconsin 56903, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Jillian Ewing Haas
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 56903 WI
Self-reported in NPPES; status is on the state search - Practice location
- 2315 E Moreland Blvd, Waukesha, WI 53186
- Phone
- (262) 532-5700
- Enumerated
- Mar 27, 2010
- Entity
- Type 1 · individual
Also registered at 2315 E Moreland Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Laurie Benkley, NP-CRegistered Nurse1275831513
- Bruce Berry, M.D.Internal Medicine Physician1710065230
- Elyse Carrera, DNP, APNPFamily Nurse Practitioner1912457680
- Kirstin Certalic, DOFamily Medicine Physician1275542326
- Jennifer Franz, APNPNurse Practitioner1417345208
- Maria Ilao-Pahm, MDFamily Medicine Physician1639286156
Verify Jillian Ewing Haas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 56903Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
29% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,988 Medicare Part D claims for 206 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. 15 claims were for opioids.
Most prescribed
- Atorvastatin Calcium280 claims
- Lisinopril124 claims
- Metformin Hcl Er106 claims
- Amlodipine Besylate104 claims
- Rosuvastatin Calcium90 claims
- Losartan Potassium85 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.
One hospital or facility affiliation
- Froedtert Andthe Medical College OF Wisconsin Community Physicians IncWaukesha, WI
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
53 internal medicine physician records list a Waukesha practice address
They are 53 of the 2,814 NPPES records with a Waukesha practice address, and 2,832 internal medicine physician records in Wisconsin.
All 53 in Waukesha → All 2,832 in Wisconsin → Every provider in Waukesha →
Other internal medicine physician records in Wisconsin
- Sheetal Aatrai, MDMarshfield, WI1417568965
- Noormuhammad Abbasakoor, M.D.Sheboygan, WI1558645895
- Khalid Abdelgadir, MDManitowoc, WI1407433295
- Kareem Abdelhadi, MDRice Lake, WI1841494432
- Mesfin Abdissa, MDMilwaukee, WI1376579417
- Mohamed Fouzi Abdul Hameed, M.D.Weston, WI1255590899
- Hamza Abdul Majeed, DOMilwaukee, WI1881013282
- Anas Abed, MDMadison, WI1659002566
- Sameem Abedin, MDMilwaukee, WI1063641157
- Vincent Abejuela, DOMilwaukee, WI1356928543
Common questions
What is Jillian Ewing Haas, M.D.'s NPI number?
Jillian Ewing Haas, M.D.'s National Provider Identifier (NPI) is 1982929410, issued on Mar 27, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Jillian Ewing Haas, M.D. located?
The NPPES record lists a practice address at 2315 E Moreland Blvd, Waukesha, WI, 53186. Phone: (262) 532-5700. Providers update this record themselves, so call before visiting.
How can I verify Jillian Ewing Haas, M.D.'s license?
NPPES lists Wisconsin license number 56903, 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 Jillian Ewing Haas, M.D. prescribe under Medicare Part D?
In 2024, Jillian Ewing Haas, M.D. had 1,988 Medicare Part D claims for 206 beneficiaries; the average among internal medicine physician prescribers was 2,785. 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.