Irmgard Behlau, MD

Medicare activity in 2024

Official CMS public-use data for Irmgard Behlau, 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. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)213 services
2. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)87 services
3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)49 services
4. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)16 services
5. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)12 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 cholesterol75%
• Arthritis57%
• Heart failure46%
• Chronic kidney disease45%
• Ischemic heart disease44%

Hospitals where Irmgard Behlau works

Medicare's Facility Affiliation Data lists Irmgard Behlau 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.

• Mount Auburn HospitalCambridge, MA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 220002

Practice locations

Addresses where Irmgard Behlau is enrolled with Medicare (CMS data updated October 2, 2026).

• 300 Mount Auburn StCambridge, MA 02138
• 330 Mount Auburn StCambridge, MA 02138
• 57 Bedford St, Suite 130Lexington, MA 02420 (781) 862‑7500

Group practices

Medicare enrollment lists Irmgard Behlau as a member of this group (CMS data updated October 2, 2026).

• Mount Auburn Professional Services Inc231 clinicians in the group

Specialties

• Infectious Diseaseprimary
• Internal Medicinealso

Find other Infectious Disease doctors in Massachusetts →

Other infectious disease doctors in Cambridge

Clinicians with the same Medicare primary specialty in Cambridge, MA — not a recommendation.

• Brian T. Chan, MD
• Richa M. Tandon, MD
• Alyse E. Wheelock
• Mark S. Pasternack, MD

All infectious disease doctors in Cambridge →

Other clinicians in Mount Auburn Professional Services Inc

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

• Germaine Earle Cruickshanks, DO
• Shiv T. Sehra, MD
• Jane R. Sharp, MD
• Megan A. Koster, MD
• Michael Dombek
• Kathleen Cardinale, PA

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