Ellen HayesMD
Reproductive Endocrinology·Wauwatosa, WI
Ellen Hayes, MD is a Reproductive Endocrinology provider in Wauwatosa, WI, as of July 2026.
- NPI1174546899
- Registered2006
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Ellen Hayes at a glance
- Provider
- Ellen Hayes
- Credential
- MD
- Specialty
- Reproductive Endocrinology
- Location
- Wauwatosa, WI
- NPI registered
- 2006
- NPI
- 1174546899
- Snapshot
- July 2026
Identity, specialty, and affiliations change over time. This is not an endorsement, and not clinical, billing, or legal advice. Providers may request corrections at founders@datalilyai.com. Read the DataLily AI data methodology.
Questions
Where does Ellen Hayes practice?
Ellen Hayes, MD is based in Wauwatosa, WI. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Ellen Hayes's NPI number?
Ellen Hayes's National Provider Identifier (NPI) is 1174546899, registered in 2006. Specialty on record: Reproductive Endocrinology; credential MD.
How many Reproductive Endocrinology providers in Wisconsin work at ambulatory surgery centers?
2 Reproductive Endocrinology surgeons and proceduralists in Wisconsin are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Ellen Hayes among them. The Wisconsin Reproductive Endocrinology directory lists each one by city with credential, NPI, and center affiliations.
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