Disease ProgressionEsophageal and Gastric VaricesGastrointestinal Hemorrhage
Dr. Michael J. Leonardi, MD
NPI1548487010PAC ID6305855685
- Part D claims, 2024
- 97
- Publications
- 6
- Hospital affiliations
- 2
- Industry payments
- $3,601
- Medical group
- 1
- Practice address
- 6041 Cadillac Ave, Los Angeles, CA 90034
- Practice phone
- Call (213) 857-2201
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Leonardi's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Michael J. Leonardi is a general surgeon in Los Angeles, California
Dr. Leonardi practices at West Los Angeles Medical Center in Los Angeles, California, part of Kaiser Permanente.
Dr. Leonardi's NPI, 1548487010, was assigned on April 19, 2007. Dr. Leonardi graduated from David Geffen School of Medicine at UCLA in 2003. Dr. Leonardi's California license number on file is A92011.
NPI and contact details
- NPI
- 1548487010NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6305855685
- NPI enumeration date
- April 19, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (213) 857-2201
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael J. Leonardi practices at West Los Angeles Medical Center in Los Angeles, California
Dr. Leonardi's primary practice is West Los Angeles Medical Center, at 6041 Cadillac Ave, Los Angeles, CA 90034 in Los Angeles County. The practice phone is (213) 857-2201.
- West Los Angeles Medical Center6041 Cadillac Ave, Los Angeles, CA 90034 · Los Angeles CountyPhone(213) 857-2201
Source: Dmand AI Affiliation Data
Dr. Michael J. Leonardi is affiliated with 3 sites of care and 1 medical group
Dr. Leonardi's primary practice is West Los Angeles Medical Center in Los Angeles, California, part of Kaiser Permanente. Dr. Leonardi is also affiliated with Kaiser Permanente Baldwin Park Medical Center. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Leonardi to 1 more dialysis center, named with a free account.
Kaiser Permanente Baldwin Park Medical CenterSouthern California Permanente Medical Group1 dialysis centerName with a free account
See all 4 affiliations for Dr. LeonardiSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Michael J. Leonardi's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Leonardi practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| West Los Angeles Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael J. Leonardi is one of 2,926 general surgeons in California
Surgery is Dr. Leonardi's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Leonardi is board certified in surgery by the American Board of Surgery. Dr. Leonardi has a license on file in California.
Specialties and state licenses
- Surgery, CaliforniaPrimary
Clinical focus
Dmand AI lists gallbladder removal and mastectomy among the conditions Dr. Leonardi treats.
General surgeons near Dr. Leonardi
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
2,926general surgeons in California210general surgeons in Los Angeles10general surgeons at West Los Angeles Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Michael J. Leonardi's patients have a median age of 54
Across all payers, Dmand AI patient panel data puts Dr. Leonardi's median patient age at 54, with 62% women.
Dr. Leonardi's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 54
Patient panel by sex, all payers
- Women62%
- Men38%
Source: Dmand AI Patient Panel Data
Dr. Michael J. Leonardi wrote 97 Medicare Part D claims in 2024
In 2024, Dr. Leonardi wrote 97 Medicare Part D claims for 41 patients. 80% of them were for generic drugs. CMS names the drug for 54 of them, across 2 drugs with 11 or more claims each, at $352 in total drug cost. In 2023, CMS named 122 claims across 3 drugs.
Part D claims, 202497
Drugs named by CMS2
Total drug cost$352
Part D patients41
Dr. Leonardi's Part D claims by kind of drug, 2024
- Generic78 claims80%
- Brand-name19 claims20%
Dr. Leonardi's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Leonardi's Part D claims, 2024
- Opioids30%29 of 97 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1222024: 5456%
Drugs named by CMS: 2 in 2024, 3 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Michael J. Leonardi takes part in Medicare
Dr. Leonardi accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Michael J. Leonardi has 6 publications on record
Dmand AI links 6 papers to Dr. Leonardi, published from 2006 to 2011. The most frequent topics are Venous Thrombosis, Anticoagulants and Quality of Health Care. Dr. Leonardi has published most often in Arch Surg. Dr. Leonardi's most frequent co-author is Joel D. Kopple, MD.
Papers6
Years published2006 to 2011
Topics Dr. Leonardi writes about most
- Venous Thrombosis
- Anticoagulants
- Quality of Health Care
- Randomized Controlled Trials as Topic
Dr. Leonardi's most frequent co-authors
Recent publications by Dr. Leonardi
AnticoagulantsHeparinRandomized Controlled Trials as Topic
AgingCalciumDiabetes Mellitus, Type 2
InternetQuality of Health CareSurgery Department, Hospital
Colorectal NeoplasmsData CollectionOutcome Assessment, Health Care
See who Dr. Leonardi researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Leonardi works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Michael J. Leonardi received $3,601 in industry payments from 2017 to 2024
CMS Open Payments shows 9 general payments to Dr. Leonardi from 4 drug and device companies from 2017 to 2024. Education make up the largest share, 69% of the total. Intuitive Surgical, Inc. paid the most, $3,530.
General payments to Dr. Leonardi by program year, 2017 to 2024
General payments to Dr. Leonardi by kind, 2017 to 2024
$3.6Kin total
- Education$2,50069%
- Travel and lodging$98627%
- Food and beverage$1163%
Companies that paid Dr. Leonardi the most, 2017 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael J. Leonardi has 1 award and honors on record
Dmand AI lists 1 award for Dr. Leonardi.
Awards and honors for Dr. Leonardi
- Undated
- ACS Fellow
Source: Dmand AI Professional Profile Data
Dr. Michael J. Leonardi graduated from David Geffen School of Medicine at UCLA
Dr. Leonardi graduated from David Geffen School of Medicine at UCLA in 2003. Dr. Leonardi is a member of ACS.
- Medical school
- Board certified in surgery
Source: Dmand AI Professional Profile Data
Dr. Michael J. Leonardi accepts plans from 2 insurance carriers
Dr. Leonardi is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Leonardi accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Michael J. Leonardi's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Michael J. Leonardi
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Michael J. Leonardi's NPI number?
Dr. Michael J. Leonardi's NPI number is 1548487010. It was assigned on April 19, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael J. Leonardi?
Dr. Michael J. Leonardi is a general surgeon in Los Angeles, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Michael J. Leonardi practice?
Dr. Leonardi practices at 6041 Cadillac Ave, Los Angeles, CA 90034. Dr. Leonardi's primary practice is West Los Angeles Medical Center in Los Angeles, California, part of Kaiser Permanente. Dmand AI also links Dr. Leonardi to 1 dialysis center.
What is Dr. Michael J. Leonardi's office phone number?
The practice phone on file for Dr. Leonardi is (213) 857-2201.
What is Dr. Michael J. Leonardi's medical license number?
Dr. Leonardi's California license number on file is A92011.
Which hospitals is Dr. Michael J. Leonardi affiliated with?
Dr. Leonardi practices at West Los Angeles Medical Center in Los Angeles, California. Dr. Leonardi is also affiliated with Kaiser Permanente Baldwin Park Medical Center.
What medical group is Dr. Michael J. Leonardi part of?
Dr. Leonardi is linked to Southern California Permanente Medical Group.
Does Dr. Michael J. Leonardi accept Medicare?
Yes. CMS lists Dr. Leonardi as accepting Medicare assignment.
Is Dr. Michael J. Leonardi board certified?
Yes. Dr. Leonardi is board certified in surgery by the American Board of Surgery.
Where did Dr. Michael J. Leonardi go to medical school?
Dr. Leonardi graduated from David Geffen School of Medicine at UCLA in 2003.
Show 6 more questionsShow fewer questions
What drugs does Dr. Michael J. Leonardi prescribe most?
In 2024 Medicare Part D data, Dr. Leonardi's most prescribed drugs by claims were Ondansetron ODT and Tramadol HCl.
Has Dr. Michael J. Leonardi received payments from drug or device companies?
CMS Open Payments shows $3,601 in general payments to Dr. Leonardi from 4 companies from 2017 to 2024. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Michael J. Leonardi been practicing?
Dr. Leonardi graduated from medical school in 2003, 23 years ago.
Does Dr. Michael J. Leonardi do research?
Dmand AI links 6 publications to Dr. Leonardi, published from 2006 to 2011.
Who does Dr. Michael J. Leonardi publish with?
Dr. Leonardi's most frequent co-authors are Joel D. Kopple, MD (1 shared paper).
What insurance does Dr. Michael J. Leonardi accept?
Dr. Leonardi is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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