Dr. Lawrence Douglas Drewsen , MD
Anesthesiology • Phoenix, AZ
Professional Overview & Biography Verified Profile Summary
Dr. Lawrence Drewsen, MD is a certified Anesthesiology practicing in Phoenix, AZ. With approximately 34 years of clinical experience since graduating from Medical College Of Wisconsin in 1992, Dr. Drewsen delivers high-quality medical care to the local community at 1850 N CENTRAL AVE.
Dr. Drewsen maintains professional affiliations with Mchs Hospitals Inc, Yuma Regional Medical Center and accepts Medicare assignment.
Frequently performed procedures and clinical services include anesthesia for procedure on large bowel using an endoscope, anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope, anesthesia for procedure in upper abdomen including use of an endoscope. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.
Practice Location & Contact Primary Location
1850 N Central Ave
Ste 1600
Phoenix, AZ 850044633
Medicare Profile & Education
Medical College Of Wisconsin
1992
✓ Accepts Assignment
In-Person Only
Specialty Benchmarks & Practice Insights
Comparative analytics for Anesthesiology in Phoenix, AZ
Practicing in Phoenix, AZ (1513 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Clinical Seniority & Experience Comparison
Performed Procedures & Service Volume
Top Medicare Part B procedures performed by this practitioner
| HCPCS Code & Description | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
|
00811
Anesthesia for procedure on large bowel using an endoscope
|
15 | 15 | $896.70 | $124.76 |
Medical Specialties & State Licenses
CMS Verified: 2026-02-03NUCC Taxonomy Code: 207L00000X
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
NUCC Taxonomy Code: 207L00000X
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
Additional State Medicaid & Healthcare Payer Identifiers
Hospital & Practice Group Affiliations
Yuma Regional Medical Center
2400 S Ave A, Yuma, AZ 853647127
Phone: 9283442000
Mchs Hospitals Inc
3400 Ministry Pkwy, Weston, WI 544765220
Phone: 7153931000
Mchs Hospitals Inc
1000 N Oak Ave, Marshfield, WI 544495703
Phone: 7153875511
Mchs Hospitals Inc
1000 N Oak Ave, Marshfield, WI 544495703
Secondary Practice Locations
Marshfield Clinic Weston Center, 3400 Ministry Pkwy
Weston, WI 544765213
Phone: 7153931000
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Anesthesiology
Doctor of Medicine (M.D.)
Anesthesiology
Doctor of Medicine (M.D.)
Anesthesiology
Doctor of Medicine (M.D.)
Anesthesiology - Pediatric Anesthesiology
Doctor of Medicine (M.D.)
Anesthesiology
Doctor of Medicine (M.D.)
Anesthesiology
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Registered at 1850 N CENTRAL AVE STE 1600, PHOENIX, AZ 850044633 (Tel: 6027444765)
Anesthesiology (License #34966-20 in WI)
NPI status registered as active in NPPES database
Registered at 1850 N CENTRAL AVE, STE 1600, PHOENIX, AZ 850044633 (Tel: 6027444765)
Registered at 1850 N CENTRAL AVE, STE 1600, PHOENIX, AZ 850044633 (Tel: 6027444765)
Recorded as LAWRENCE DREWSEN, MD
Anesthesiology (License #24018 in AZ)
First registered as active Individual Practitioner in NPPES Database.
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NPI Administrative Meta
Mailing Address
1850 N Central Ave Ste 1600
Phoenix, AZ 850044633
Phone: 6027444765
This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.