Dr. William M. Greif , MD
Surgery • Walnut Creek, CA
Professional Overview & Biography Verified Profile Summary
Dr. William Greif, MD is a certified Surgery practicing in Walnut Creek, CA. With approximately 33 years of clinical experience since graduating from Stanford University School Of Medicine in 1993, Dr. Greif delivers high-quality medical care to the local community at 1425 S MAIN ST.
Dr. Greif is affiliated with Permanente Medical Group Inc and accepts Medicare assignment.
Practice Location & Contact Primary Location
1425 S Main St
Walnut Creek, CA 945965318
Medicare Profile & Education
Stanford University School Of Medicine
1993
✓ Accepts Assignment
In-Person Only
Specialty Benchmarks & Practice Insights
Comparative analytics for Surgery in Walnut Creek, CA
Practicing in Walnut Creek, CA (3346 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Clinical Seniority & Experience Comparison
Medical Specialties & State Licenses
NUCC Taxonomy Code: 208600000X
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
Additional State Medicaid & Healthcare Payer Identifiers
Hospital & Practice Group Affiliations
Permanente Medical Group Inc
901 Nevin Ave, Richmond, CA 948013143
Phone: 5103071500
Permanente Medical Group Inc
1425 S Main St, Walnut Creek, CA 945965318
Phone: 9252954000
Permanente Medical Group Inc
4501 Sand Creek Rd, Antioch, CA 945318687
Phone: 9258136500
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Nurse Anesthetist, Certified Registered
Certified Registered Nurse Anesthetist
Psychiatry & Neurology - Neurology
Doctor of Medicine (M.D.)
Hospitalist
Doctor of Medicine (M.D.)
Pediatrics
Doctor of Medicine (M.D.)
Orthopaedic Surgery - Hand Surgery
Doctor of Medicine (M.D.)
Podiatrist - Foot & Ankle Surgery
Doctor of Podiatric Medicine
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Registered at 1800 HARRISON ST FL 7, OAKLAND, CA 946123466 (Tel: 5106256262)
NPI status registered as active in NPPES database
Registered at 1425 S MAIN ST, WALNUT CREEK, CA 945965318 (Tel: 9252954000)
Registered at 1800 HARRISON ST FL 7, OAKLAND, CA 946123429 (Tel: 5106256262)
Recorded as WILLIAM GREIF, MD
Surgery (License #G85813 in CA)
First registered as active Individual Practitioner in NPPES Database.
Patient & Community Reviews
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NPI Administrative Meta
Mailing Address
1800 Harrison St Fl 7
Oakland, CA 946123466
Phone: 5106256262
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