Ellen Therese Haas, M.D.
Obstetrics & Gynecology Physician · Peoria, IL
Ellen Therese Haas, M.D. is an obstetrics & gynecology physician with a practice address in Peoria, Illinois, and NPI 1124256854, issued on Jul 1, 2009. Check the license (Illinois 125.056269, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Ellen Therese Haas
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 125.056269 IL
Self-reported in NPPES; status is on the state search - Practice location
- 530 NE Glen Oak Ave, Peoria, IL 61637
- Phone
- (309) 655-2000
- Enumerated
- Jul 1, 2009
- Record last updated
- Jul 1, 2009 (not updated in 17 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20130708000376); may accept Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2009
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 2,062 in Illinois → Look up another NPI →
Also registered at 530 NE Glen Oak Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Motaz Abas, MDInternal Medicine Physician1215510201
- Mohammed Abdulaaima, MDInternal Medicine Physician1861952707
- Makram Abou Ghaida, MDStudent in an Organized Health Care Education/Training Program1659119253
- Bassel Abouzeid, MDObstetrics & Gynecology Physician1376160846
- Susan Abraham, M.D.Internal Medicine Physician1598926818
- Angela AdamsOccupational Therapist1124564802
Verify Ellen Therese Haas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 125.056269Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
157 Medicare Part D claims for 45 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.
Most prescribed
- Estradiol42 claims
- Estradiol (Twice Weekly)17 claims
- Myrbetriq13 claims
- Imvexxy12 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: $925.44
42 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 21,429 providers of this specialty with any payment received $1,030.61 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.
Bills Medicare through one group practice
- Thornton And Haas, S.C.Normal, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ellen Therese Haas among 2,062 obstetrics & gynecology physician records in Illinois
Ellen Therese Haas, M.D. is one of 2,062 obstetrics & gynecology physician records with a practice address in Illinois. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 57% of them.
- NPI issued2009 · 57% of these records are older, 41% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2009 · median 2006 among the 1,168 with a school on file
- Record last updated2009 · 51% 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 Illinois 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 Illinois
There are 2,062 obstetrics & gynecology physician records in Illinois.
All 2,062 in Illinois → Every provider in Peoria → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Bassel Abouzeid, MDPeoria, IL 616371376160846
- Rida Boulos, MDPeoria, IL 616371114991577
- Susan Catt, MDPeoria, IL 616371326200585
- Shruti Chakravarthy, MDPeoria, IL 616371396270146
- Ivonne Durand Ruiz, DOPeoria, IL 616371154909182
- Melvin Fleming, M.D.Peoria, IL 616371134235823
- Jack Gibson, M.D.Peoria, IL 616371346235777
- Kaleb Jacobs, D.O.Peoria, IL 616371124468129
Common questions
What is Ellen Therese Haas, M.D.'s NPI number?
Ellen Therese Haas, M.D.'s National Provider Identifier (NPI) is 1124256854, issued on Jul 1, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Ellen Therese Haas, M.D. located?
The NPPES record lists a practice address at 530 NE Glen Oak Ave, Peoria, IL, 61637. Phone: (309) 655-2000. Providers update this record themselves, so call before visiting.
How can I verify Ellen Therese Haas, M.D.'s license?
NPPES lists Illinois license number 125.056269, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ellen Therese Haas, M.D. prescribe under Medicare Part D?
In 2024, Ellen Therese Haas, M.D. had 157 Medicare Part D claims for 45 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.