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Edit this profileWhere to find Joseph Mendelis, MD
- Westlake Village location main office
30870 Russell Ranch Rd Ste 330, Westlake Village, CA 91362 - San Francisco location
400 Parnassus Ave Fl 3, San Francisco, CA 94143 - Bronx location
1250 Waters Pl, 11th Floor, Bronx, NY 10461 - Simi Valley location
3605 Alamo St Ste 200, Simi Valley, CA 93063 - Northridge location
19950 Rinaldi St Ste 100, Northridge, CA 91326
About Dr. Mendelis
Joseph Mendelis, MD practices orthopaedic surgery in Westlake Village, CA. Joseph is also listed as specializing in orthopaedic surgery of the spine. Medicare claims data shows Joseph provided 1,987 services to 1,630 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, x-ray of lower and sacral spine, minimum of 4 views, and new patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more. The provider's National Provider Identifier (NPI) is 1467847525.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (805) 497-7015
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
30870 RUSSELL RANCH RD STE 330
Westlake Village, CA 91362
400 Parnassus Ave Fl 3
San Francisco, CA 94143
1250 Waters Pl 11th Floor
Bronx, NY 10461
3605 Alamo St Ste 200
Simi Valley, CA 93063
19950 Rinaldi St Ste 100
Northridge, CA 91326
375 Rolling Oaks Dr Ste 210
Thousand Oaks, CA 91361
Conditions Commonly Evaluated or Treated
Within Orthopedic Surgery generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Pain
Pediatric and tumor
- Slipped capital femoral epiphysis
Spine
- Cervical spondylosis
- Lumbar spondylosis
- Herniated disc
- Scoliosis
- Spinal stenosis
Most searched conditions
Elbow, hand, and wrist
Foot and ankle
Hip
Shoulder
- Broken collarbone
- Frozen shoulder
- Shoulder impingement
- Dislocated joint
Sports and soft tissue
Trauma and bone
Foot & Ankle
Procedures & services
Ankle surgery
Evaluation and nonsurgical
- Closed fracture treatment
- Joint injection or aspiration
- Orthopedic evaluation
- Cast placement and management
Foot & Ankle
- Ankle Ligament Surgery
- Hammertoe Surgery
Foot and ankle
- Ankle arthroscopy
- Ankle fusion
- Total ankle replacement
- Bunion surgery
Hand and upper extremity
- Wrist fracture fixation
- Cubital tunnel decompression
- Dupuytren contracture surgery
- Trigger finger release
Joint replacement
- Total hip replacement
- Total knee replacement
- Partial knee replacement
- Reverse shoulder replacement
- Revision joint replacement
- Shoulder replacement
Nerves & spine
Orthopedics
- ACL reconstruction consultation
- Carpal tunnel surgery consultation
- Hip replacement consultation
- Knee replacement consultation
- Torn rotator cuff consultation
Post-Op Care
Spine
- Anterior cervical discectomy and fusion
Spine & Orthopedics
- Bunion Surgery Consultation
- Foot and Ankle Surgery Consultation
- Shoulder Surgery Consultation
- Surgical Hardware Removal Consultation
- Trigger Finger Release Consultation
Trauma and fixation
- External fracture fixation
- Intramedullary nailing
- Repair of fracture nonunion
- Open reduction and internal fixation
Tumor and pediatric
- Bone or soft-tissue tumor resection
- Limb-sparing cancer surgery
- Pediatric corrective osteotomy
Most searched procedures
- Achilles tendon repair
- ACL reconstruction
- Carpal tunnel surgery
- Hip replacement
- Knee replacement
Arthroscopy
- Hip arthroscopy
- Rotator cuff repair
- Shoulder arthroscopy
Hand & Wrist
- De Quervain's Release
Injections & Non-Surgical
Injections & pain relief
- Cortisone Shot for Joint Pain
Knee
- Kneecap Stabilization Surgery
- Meniscus Surgery
Shoulder surgery
- Shoulder labrum repair
Trauma & Fractures
- Broken Hip Surgery
- Hardware Removal Surgery
Procedures Most Often Billed to Medicare
1,987 services · 1,630 patients · 16 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment | Procedure | 63047 |
22 | As often as other peers in Orthopaedic Surgery |
| Partial removal of spine bone with release of spinal cord and/or nerves, each additional segment | Procedure | 63048 |
21 | Less often than most peers in Orthopaedic Surgery |
| Insertion of cage or mesh device to spine bone and disc space during spine fusion | Procedure | 22853 |
19 | Less often than most peers in Orthopaedic Surgery |
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
19 | Less often than most peers in Orthopaedic Surgery |
| Injection of anesthetic agent and/or steroid into other nerve or branch | Procedure | 64450 |
13 | Less often than most peers in Orthopaedic Surgery |
| X-ray of lower and sacral spine, minimum of 4 views | Imaging | 72110 |
337 | More than most peers in Orthopaedic Surgery |
| X-ray of lower and sacral spine, 2-3 views | Imaging | 72100 |
100 | More often than most peers in Orthopaedic Surgery |
| X-ray of upper spine, 4-5 views | Imaging | 72050 |
94 | More than most peers in Orthopaedic Surgery |
| X-ray of upper spine, 2-3 views | Imaging | 72040 |
38 | More often than most peers in Orthopaedic Surgery |
| X-ray of middle spine, 2 views | Imaging | 72070 |
23 | As often as other peers in Orthopaedic Surgery |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other orthopaedic surgeons at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 7
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 28 related providers in 4 groups
Other orthopaedic surgeons in Westlake Village 4
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2015 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Mendelis specialize in?
Dr. Mendelis is an orthopaedic surgeon in Westlake Village, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Orthopaedic Surgery”.
NPI registry
Where is Dr. Mendelis located?
Dr. Mendelis is listed at 30870 Russell Ranch Rd Ste 330, Westlake Village, CA 91362. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Mendelis's phone number?
The number on file is (805) 497-7015. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Mendelis?
Dr. Mendelis's National Provider Identifier is 1467847525. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Mendelis go to medical school?
Dr. Mendelis attended Other, graduating in 2015. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Mendelis have?
Dr. Mendelis has 11 years experience. Calculated from a graduation year of 2015, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Mendelis do most often?
According to Medicare billing data, Dr. Mendelis performs procedures including partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment, partial removal of spine bone with release of spinal cord and/or nerves, each additional segment and insertion of cage or mesh device to spine bone and disc space during spine fusion; reads or performs imaging such as x-ray of lower and sacral spine, minimum of 4 views and x-ray of lower and sacral spine, 2-3 views, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Mendelis's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Mendelis. If this is you, claiming it is free.
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