Dr. Michael Steven Denenberg , MD
Orthopaedic Surgery • Los Altos, CA
Notice of NPI Deactivation & Inactive Practice Status
According to official public domain records published by CMS (Centers for Medicare & Medicaid Services) in the National Provider Identifier (NPPES) Registry, Dr. Michael Denenberg has officially deactivated this NPI record and ceased active healthcare practice.
Professional Overview & Biography Verified Profile Summary
Dr. Michael Denenberg, MD was a registered Orthopaedic Surgery practicing in Los Altos, CA. Throughout an active medical career spanning 19 years, Dr. Denenberg provided care at the practice location at 746 ALTOS OAKS DR until profile deactivation on 2025-05-15.
Historical Medicare Part B clinical services included replacement of knee joint, both sides of knee, replacement of thigh bone and hip joint with prosthesis. Public procedure reimbursement records and service volume details are provided below for historical transparency.
Practice Location & Contact Primary Location
746 Altos Oaks Dr
Los Altos, CA 940245401
Specialty Benchmarks & Practice Insights
Comparative analytics for Orthopaedic Surgery in Los Altos, CA
Practicing in Los Altos, CA (2527 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Performed Procedures & Service Volume
Top Medicare Part B procedures performed by this practitioner
| HCPCS Code & Description | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
|
27447
Replacement of knee joint, both sides of knee
|
14 | 13 | $2000.00 | $246.21 |
Medical Specialties & State Licenses
NUCC Taxonomy Code: 207X00000X
An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Dentist
Doctor of Dental Surgery
Family Medicine
Doctor of Medicine (M.D.)
Physical Therapist
Physical Therapist
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Record deactivated on May 15, 2025
Registered at 1625 CLAY DR, LOS ALTOS, CA 940246252 (Tel: 6509413236)
Registered at 1625 CLAY DR, LOS ALTOS, CA 940246252 (Tel: 6509413236)
NPI status registered as active in NPPES database
Registered at 746 ALTOS OAKS DR, LOS ALTOS, CA 940245401 (Tel: 6509413112)
Registered at 746 ALTOS OAKS DR, LOS ALTOS, CA 940245401 (Tel: 6509413112)
Recorded as MICHAEL DENENBERG, M.D.
Orthopaedic Surgery (License #C26147 in CA)
First registered as active Individual Practitioner in NPPES Database.
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NPI Administrative Meta
Mailing Address
746 Altos Oaks Dr
Los Altos, CA 940245401
Phone: 6509413112
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