Doctor profile · Federal record

Dr. Joseph Mendelis, MD

Orthopaedic Surgery Physician (CMS: Orthopedic Surgery) · Orthopaedic Surgery of the Spine Physician · Westlake Village, CA

  • NPI 1467847525
  • Accepts Medicare
  • MIPS 77.6 / 100 · 2023
  • 11 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 6 locations .

NPPES Updated May 11, 2026
Primary practice
30870 Russell Ranch RD Ste 330
Westlake Village, CA 913627372
(805) 497-7015
Additional location
19950 Rinaldi St Ste 100
Northridge, CA 913264141
(818) 363-2273
Additional location
3605 Alamo St Ste 200
Simi Valley, CA 930632186
(805) 578-8550
Show 3 more locations
Additional location
375 Rolling Oaks Dr Ste 210
Thousand Oaks, CA 913611028
Additional location
400 Parnassus Ave Fl 3
San Francisco, CA 941432202
(866) 817-7463
Additional location
1250 Waters Pl, 11Th Floor
Bronx, NY 104612720
(347) 577-4410
Mailing address
5767 W Century Blvd Ste 400
Los Angeles, CA 900455631

Credentials & registration

NPPES · NUCC
NPI registered
April 2015 — 11 yrs on file
Profile last updated
March 21, 2025
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
207X00000X — NUCC code
State license (1)
California #A168200

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1467847525. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,427
Distinct HCPCS
10
Medicare allowed
$179,833
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 589 370 $138
72110 X-ray of lower and sacral spine, minimum of 4 views 235 233 $59
99204 New patient office or other outpatient visit, 45-59 minutes 181 181 $180
72100 X-ray of lower and sacral spine, 2-3 views 108 87 $46
99213 Established patient office or other outpatient visit, 20-29 minutes 81 73 $98
72050 X-ray of upper spine, 4-5 views 73 73 $62
99215 Established patient office or other outpatient visit, 40-54 minutes 54 49 $195
72040 X-ray of upper spine, 2-3 views 29 20 $46
63047 Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment 22 21 $865
72070 X-ray of middle spine, 2 views 22 19 $38

In context: peer comparison

Among 2 peers in this city , average services per provider: 394. This provider delivers 3.6× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$732
Transactions
12
Manufacturers
5
Payer (manufacturer) Industry Txns Amount
Highridge Medical LLC 2 $253.78
Medtronic, Inc. 1 $236.24
Globus Medical, Inc. 5 $150.00
Orthofix Medical, Inc. 2 $49.47
Pacira Pharmaceuticals Incorporated 2 $42.70

By nature of payment

Food and Beverage
$732

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
507
Patients
242
Total drug cost
$4,193
Drug Type Claims Patients Total cost
Meloxicam Generic 191 82 $884
Gabapentin Generic 129 51 $1,433
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 40 21 $496
Methylprednisolone Generic 39 39 $368
Tizanidine Hcl Generic 39 19 $279
Tramadol Hcl Generic 23 15 $69
Diclofenac Sodium Generic 16 0 $406
Baclofen Generic 15 15 $192
Cyclobenzaprine Hcl Generic 15 0 $66

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Joseph Mendelis's medical specialty?
Dr. Joseph Mendelis practices Orthopaedic Surgery Physician in Westlake Village, CA.
Where does Dr. Joseph Mendelis practice?
Dr. Joseph Mendelis practices at 30870 Russell Ranch RD Ste 330, Westlake Village, CA 913627372. Office phone: 8054977015.
What is Dr. Joseph Mendelis's NPI?
Dr. Joseph Mendelis's National Provider Identifier (NPI) is 1467847525, issued by NPPES.
Does Dr. Joseph Mendelis accept Medicare assignment?
Yes. Dr. Joseph Mendelis accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Joseph Mendelis commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); X-ray of lower and sacral spine, minimum of 4 views (HCPCS 72110); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.