Joanna L. Spencer-Segal, MD

Medicare activity in 2024

Official CMS public-use data for Joanna L. Spencer-Segal, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)33 services
2. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)31 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High blood pressure75%
• High cholesterol72%
• Arthritis44%
• Ischemic heart disease30%
• Diabetes26%
• Chronic kidney disease26%

Hospitals where Joanna L. Spencer-Segal works

Medicare's Facility Affiliation Data lists Joanna L. Spencer-Segal at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• University of Michigan Health SystemAnn Arbor, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230046

Practice locations

Addresses where Joanna L. Spencer-Segal is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 13; the Medicare profile lists all.

• 1500 E Medical Ctr, Suite 0331Ann Arbor, MI 48109 (734) 936‑5738
• 1500 E Medical Ctr 2nd Floor Rec, Taubman CenterAnn Arbor, MI 48109 (734) 936‑5020
• 1500 E Medical Ctr DrAnn Arbor, MI 48109
• 1500 E Medical Ctr Dr 1st Fl, Taubman Ctr Rec DAnn Arbor, MI 48109 (734) 936‑4185
• 1500 E Medical Ctr Dr 1st Fl Rec D, Taubman CenterAnn Arbor, MI 48109 (734) 764‑5175

Group practices

Medicare enrollment lists Joanna L. Spencer-Segal as a member of this group (CMS data updated October 2, 2026).

• Regents of the University of Michigan3,346 clinicians in the group

Specialties

• Endocrinologyprimary
• Internal Medicinealso

Find other Endocrinology doctors in Michigan →

Other endocrinologists in Ann Arbor

Clinicians with the same Medicare primary specialty in Ann Arbor, MI — not a recommendation.

• Eric Frontera, DO
• Amy E. Rothberg, MD
• Adina F. Turcu, MD
• Stanley M. Chen Cardenas, MD
• Brandon Moretti, MD
• Farah Daneshvar, DO
• Cristina Alvardos Nieves, MD
• Daniyeh Khurram

All endocrinologists in Ann Arbor →

Other clinicians in Regents of the University of Michigan

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Allison B. Lange, MD
• Antonia P. Popova, MD
• Ryan T. Greene, MD
• Neha V. Bhave, MD
• Namra Ajmal, MD
• Jennifer M. Delvero, NP

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians