A Better Patient Experience.

Surgical Care
Since 1968.

Anesthesia Specialists improving the perioperative experience
for our patients, nurses, surgeons, surgical staff, and hospitals.

Best Ambulatory
Surgery Centers

Newsweek has ranked St. Joseph Mercy Ann Arbor #7 in Michigan
and The Toledo Clinic #2 in Ohio.
A team for partnership with passion.

Experienced Clinicians Focused on One Goal

The highly skilled professionals and clinicians of A4, Anesthesia Associates of Ann Arbor, are passionate about providing patients with the best anesthesia services available. Collectively, we uphold this with a commitment to creating and successfully maintaining partnerships with stakeholders including patients, nurses, surgeons, hospitals, and more.

We are proud to work with Hospital Administration to provide leadership at all levels. At each facility, we have an anesthesiologist that is the appointed Medical Director of that site. A4 is privileged to have three of our partners serve as Chief of Staff at three separate hospitals.  

Focused on a better patient experience

Providing the Best in Anesthesia Services


  • General & Regional Anesthesiology
  • Central Neuraxial
  • Peripheral Nerve Blocks
  • Monitored Anesthesia Care

Critical Care

  • State-of-the-Art
  • Before, During, After Surgery
  • Safe Transfer from Operating Room to ICU
  • Rapid Treatment

Global Anesthesia Solutions

  • Top Quality Physicians
  • Top Quality Consulting Services
  • Better Safety
  • Improved Outcomes

Medical Billing

  • Anesthesia Billing Services
  • Corporate Compliance
  • All Aspects of the Billing Process Covered
  • Reporting Capabilities

Office-Based Anesthesia

  • Accredited Program
  • Advantages for Appropriate Procedures
  • Turn-Key Services
  • Immediate Returns

Pain Management

  • Evidence Based Protocols
  • Diagnostic & Therapeutic Procedures
  • Locations Near You
  • Treat a Variety of Conditions

Perioperative Care

  • Coordinate Services
  • Manage Surgical Episodes
  • Reduced Cost Implications
  • Improved Efficacy of Care
A case study on opioid-free surgical care

Did you know having surgery puts you at risk for opioid addiction? A4 is helping you win your war against opioids by being on the front lines of opioid-free surgical care.

One of the largest specialty groups in the Midwest

World-Class Team Members & Clinicians

Daniel Grutter, DO

Sandeep Krishnan, MD

Joelle Boeve, MD

Traci Coffman, MD

President/Chief Medical Officer

Jason Adams, MD

Timothy Cahill, MD

Vice President

The experience of our patients is what matters most.

In order for our patients to get back to living their normal life, we have partnered with like-minded physicians and organizations in redesigning surgical care delivery to provide the best experience possible.
A4's Mission


Cases Annually


Pain Management Procedures Annually
Partner with A4

Join Us in Enhancing Surgical Care

Interested in Working Together?

Choosing to work with A4 is choosing to operate with highly skilled clinicians focused on a better experience for all. With our host of anesthesiology services, you can expect a process grounded in the efficient coordination of the surgical process, reduced costs, and improved efficacy of care.

Looking to Join the A4 Team?

As one of the largest specialty groups in the Midwest, A4 has a team of clinicians trained from the nation’s top programs. They are passionate about providing patients with the best anesthesia services available. We are always seeking to recruit the best and brightest to join our team and mission.
A4: Anesthesia Associates of Ann Arbor

Location & Contact Information



2006 Hogback Rd, #5a
Ann Arbor, MI 48105

Contact Information

Main Phone:

Billing Inquiries:
734-263-2383 or csmith@midwestanes.com

Pain Appointments:
Ann Arbor: 734-712-PAIN (7246)
Brighton: 810-844-7766
Fax: 734-712-5084