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Deactivated NPI 1710927009 Deactivated / Inactive NPI Male Practitioner

Dr. Michael Steven Denenberg , MD

Orthopaedic Surgery • Los Altos, CA

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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.

Registration / Start Date June 07, 2006
NPI Deactivation Date May 15, 2025
Total Practice Duration ~19 Years of Practice (2006 – 2025)

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

Practice Address

746 Altos Oaks Dr

Los Altos, CA 940245401

Telephone 6509413112
Fax 6509414392
Associated Practice Facility / Clinic

Specialty Benchmarks & Practice Insights

Comparative analytics for Orthopaedic Surgery in Los Altos, CA

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 30.5 Yrs
State Avg: 28.4 Yrs
Regional Practice Density
4 Specialists

Practicing in Los Altos, CA (2527 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
87.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2019)
Reporting Year:
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

Orthopaedic Surgery Primary Specialty

NUCC Taxonomy Code: 207X00000X

State License CA C26147

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

3 Associated Practitioners
NPI 1073739298

Doctor of Dental Surgery

Dr. Moises Aganon , MD

Family Medicine

NPI 1124185921

Doctor of Medicine (M.D.)

Tommy Sutton , PT

Physical Therapist

NPI 1720181035

Physical Therapist

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

9 Historical Events
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NPI Profile Deactivated May 15, 2025

Record deactivated on May 15, 2025

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Updated Practice Location May 17, 2020

Registered at 1625 CLAY DR, LOS ALTOS, CA 940246252 (Tel: 6509413236)

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Updated Business Mailing Address May 17, 2020

Registered at 1625 CLAY DR, LOS ALTOS, CA 940246252 (Tel: 6509413236)

NPI Profile Active August 12, 2008

NPI status registered as active in NPPES database

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Updated Practice Location August 12, 2008

Registered at 746 ALTOS OAKS DR, LOS ALTOS, CA 940245401 (Tel: 6509413112)

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Updated Business Mailing Address August 12, 2008

Registered at 746 ALTOS OAKS DR, LOS ALTOS, CA 940245401 (Tel: 6509413112)

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Provider Name / Credentials Updated August 12, 2008

Recorded as MICHAEL DENENBERG, M.D.

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Medical Taxonomy / Specialty Registered (Primary Specialty) August 12, 2008

Orthopaedic Surgery (License #C26147 in CA)

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Initial NPI Registration & Enumeration June 07, 2006

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

NPI Number: 1710927009
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 07, 2006
Last Update: August 12, 2008
Deactivation Date: May 15, 2025

Mailing Address

746 Altos Oaks Dr

Los Altos, CA 940245401

Phone: 6509413112

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

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.