Dr. William G Grehan , MD
Anesthesiology • Melrose Park, IL
Professional Overview & Biography Verified Profile Summary
Dr. William Grehan, MD is a certified Anesthesiology practicing in Melrose Park, IL. With approximately 34 years of clinical experience since completing medical education in 1992, Dr. Grehan delivers high-quality medical care to the local community at 701 W NORTH AVE.
Dr. Grehan maintains professional affiliations with Midwest Anesthesia Providers Sc, Gottlieb Midwest Anesthesiologists, Llc, Cep America - Anesthesia Pc and accepts Medicare assignment.
Frequently performed procedures and clinical services include injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve), anesthesia for procedure for total knee joint replacement, injection of anesthetic agent, brachial (arm) nerve bundle. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.
Practice Location & Contact Primary Location
701 W North Ave
Melrose Park, IL 601601612
Medicare Profile & Education
Other
1992
✓ Accepts Assignment
In-Person Only
Specialty Benchmarks & Practice Insights
Comparative analytics for Anesthesiology in Melrose Park, IL
Practicing in Melrose Park, IL (2670 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 |
|---|---|---|---|---|
|
64447
Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve)
|
74 | 73 | $1007.54 | $54.26 |
|
01402
Anesthesia for procedure for total knee joint replacement
|
65 | 64 | $3219.51 | $169.20 |
|
64415
Injection of anesthetic agent, brachial (arm) nerve bundle
|
47 | 47 | $1002.64 | $66.63 |
|
01214
Anesthesia for total hip replacement
|
42 | 41 | $3252.61 | $188.68 |
|
64454
Injection of anesthetic agent and/or steroid into knee nerve branch using imaging guidance
|
19 | 19 | $1140.00 | $85.86 |
|
64450
Injection of anesthetic agent, other peripheral nerve or branch
|
18 | 16 | $591.50 | $31.78 |
|
76942
Ultrasonic guidance imaging supervision and interpretation for insertion of needle
|
14 | 13 | $640.14 | $28.97 |
|
36620
Insertion of artery tube for blood sampling or infusion through skin
|
13 | 13 | $470.54 | $41.80 |
|
01638
Anesthesia for open or endoscopic total shoulder joint replacement
|
12 | 12 | $3903.10 | $202.83 |
Medical Specialties & State Licenses
CMS Verified: 2025-04-22NUCC 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.
NUCC Taxonomy Code: 207LP2900X
An anesthesiologist who provides a high level of care, either as a primary physician or consultant, for patients experiencing problems with acute, chronic and/or cancer pain in both hospital and ambulatory settings. Patient care needs are also coordinated with other specialists.
Additional State Medicaid & Healthcare Payer Identifiers
Hospital & Practice Group Affiliations
Advocate Health And Hospitals Corporation
4440 W 95th St, Oak Lawn, IL 604532600
Phone: 7086844393
Gottlieb Midwest Anesthesiologists, Llc
701 W N Ave, Melrose Park, IL 601601612
Phone: 7086813200
Cep America - Anesthesia Pc
25 Hospital Ctr Blvd, Hilton Head, SC 299262738
Phone: 8436816122
Midwest Anesthesia Providers Sc
4500 Memorial Dr, Belleville, IL 622265360
Phone: 6182337750
Black Hills Surgical Hospital Llc
216 Anamaria Dr, Rapid City, SD 577017366
Phone: 6057214700
Secondary Practice Locations
4440 W 95th St
Oak Lawn, IL 604532600
Phone: 7086848000
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Registered Nurse
Certified Registered Nurse Anesthetist
Nurse Anesthetist, Certified Registered
Certified Registered Nurse Anesthetist
Nurse Anesthetist, Certified Registered
Certified Registered Nurse Anesthetist
Nurse Anesthetist, Certified Registered
Certified Registered Nurse Anesthetist
Anesthesiology - Pain Medicine
Doctor of Medicine (M.D.)
Anesthesiology - Pain Medicine
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Anesthesiology (License #036-082615 in IL)
Anesthesiology (License #36082615 in IL)
Anesthesiology (License #36082615 in IL)
NPI status registered as active in NPPES database
Registered at 701 W NORTH AVE, MELROSE PARK, IL 601601612 (Tel: 7086813202)
Registered at 1121 LAKE COOK RD, STE M, DEERFIELD, IL 600155234 (Tel: 8479454550)
Recorded as WILLIAM GREHAN, MD
Anesthesiology (License #36082615 in IL)
First registered as active Individual Practitioner in NPPES Database.
Patient & Community Reviews
Verified patient ratings, medical care experiences, and facility photos
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NPI Administrative Meta
Mailing Address
1121 Lake Cook Rd, Ste M
Deerfield, IL 600155234
Phone: 8479454550
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.