Dr. Mazen Muhammad Mardini, MD
- Medicare services, 2024
- 558
- Medicare patients, 2024
- 369
- Part D claims, 2024
- 688
- Hospital affiliations
- 1
- Industry payments
- $11,293
- Practice address
- 521 South Ham Lane, Lodi, CA 95242
- Practice phone
- Call (209) 333-0905
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Lodi Outpatient Surgical Center
Surgery Center - Medicare-Certified · Lodi, California
Find Dr. Mardini's professional email, personal email and mobile number
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Dr. Mazen Muhammad Mardini is a gastroenterologist in Lodi, California
Dr. Mardini practices at Lodi Outpatient Surgical Center in Lodi, California.
Dr. Mardini's NPI, 1518909126, was assigned on June 11, 2006. Dr. Mardini graduated from Damascus University Faculty of Medicine in 1973. Dr. Mardini's California license number on file is A35332.
- NPI
- 1518909126NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8426184490
- NPI enumeration date
- June 11, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (209) 333-0905
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 79
- Medical school graduation
- 1973
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mazen Muhammad Mardini practices at Lodi Outpatient Surgical Center in Lodi, California
Dr. Mardini's primary practice is Lodi Outpatient Surgical Center, at 521 South Ham Lane, Lodi, CA 95242. The practice phone is (209) 333-0905.
- Lodi Outpatient Surgical Center521 South Ham Lane, Lodi, CA 95242Phone(209) 333-0905
Source: Dmand AI Affiliation Data
Dr. Mazen Muhammad Mardini is affiliated with 2 sites of care
Dr. Mardini's primary practice is Lodi Outpatient Surgical Center in Lodi, California. Dr. Mardini is also affiliated with Adventist Health Lodi Memorial. Dr. Mardini's employer is on file too: a surgery center (asc).
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Mazen Muhammad Mardini's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mardini practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lodi Outpatient Surgical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mazen Muhammad Mardini is one of 1,977 gastroenterologists in California
Gastroenterology is Dr. Mardini's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Mardini is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Mardini's licenses on file in 3 states: California, Michigan and Ohio.
Specialties and state licenses
- Gastroenterology, CaliforniaPrimary
- Michigan license
- Ohio license
Clinical focus
Dmand AI lists acid reflux, cirrhosis of the liver, colonoscopy, gastroenteritis, gastrointestinal bleeding, hemorrhoids, intestinal diverticulosis and irritable bowel syndrome (IBS) among the conditions Dr. Mardini treats.
Gastroenterologists near Dr. Mardini
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mazen Muhammad Mardini billed Medicare for 558 services in 2024
CMS data shows 558 Medicare services from Dr. Mardini across 10 procedure codes in 2024, for 369 Medicare patients. Medicare paid $71,574 for them.
Dr. Mardini's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 2042024: 24520%
- Office and hospital visits
- 2023: 2382024: 21410%
- Other services
- 2023: 602024: 9965%
Where Dr. Mardini's Medicare services took place, 2024
- In an office21438%
- In a facility34462%
Dr. Mardini compared with the California median for gastroenterologists, 2024
- Dr. Mardini
- California median
- Medicare services
- 558vs 586Close to median
- Medicare patients
- 369vs 30222% above
- Part D claims
- 593vs 38056% above
Medians across 1,875 gastroenterologists in California with Dmand AI profiles that report each measure.
Dr. Mardini's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Mardini and other gastroenterologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mazen Muhammad Mardini treated 369 Medicare patients in 2024, average age 74
CMS counts 369 Medicare patients who saw Dr. Mardini in 2024. The largest group is 65 to 74, with 186 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 12% are also on Medicaid. Their average risk score is 0.92, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Mardini's median patient age at 68, with 52% women.
Dr. Mardini's Medicare patients by age, 2024
Dr. Mardini's Medicare patients by sex, 2024
- Women18249%
- Men18751%
Chronic conditions among Dr. Mardini's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis47%
- Diabetes25%
- Anxiety21%
- Ischemic heart disease20%
- Mood disorders19%
- Cancer18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mardini's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women52%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mazen Muhammad Mardini wrote 688 Medicare Part D claims in 2024
In 2024, Dr. Mardini wrote 688 Medicare Part D claims for 398 patients. 81% of them were for generic drugs. CMS names the drug for 593 of them, across 11 drugs with 11 or more claims each, at $66,993 in total drug cost. In 2023, CMS named 521 claims across 15 drugs.
Dr. Mardini's Part D claims by kind of drug, 2024
- Generic559 claims81%
- Brand-name129 claims19%
Dr. Mardini'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 5212024: 59314%
Drugs named by CMS: 11 in 2024, 15 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
Dr. Mazen Muhammad Mardini ranks in the 93rd percentile for colonoscopy in Medicare
Dr. Mardini accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 198 procedures of colonoscopy by Dr. Mardini, more than 93% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Mardini ranks in Medicare procedure volume
- Colonoscopy
- 93rd percentile198 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 79th percentile113 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Mazen Muhammad Mardini received $11,293 in industry payments from 2017 to 2025
CMS Open Payments shows 25 general payments to Dr. Mardini from 8 drug and device companies from 2017 to 2025. Gifts make up the largest share, 96% of the total. Olympus America Inc. paid the most, $10,800.
General payments to Dr. Mardini by program year, 2017 to 2025
General payments to Dr. Mardini by kind, 2017 to 2025
- Gifts$10,80096%
- Food and beverage$4934%
Companies that paid Dr. Mardini the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mazen Muhammad Mardini graduated from Damascus University Faculty of Medicine
Dr. Mardini graduated from Damascus University Faculty of Medicine in 1973.
- Medical school
- Board certified in gastroenterology
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Mazen Muhammad Mardini accepts plans from 15 insurance carriers
Dr. Mardini is in network with 15 carriers, including United Healthcare, Elevance and HCSC. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- United Healthcare
- Elevance
- HCSC
- Aetna
- Blue Cross Blue Shield of Massachusetts
- Blue Cross Blue Shield of Michigan
- Regence Health Plans
- Alliant Health Plans
- +7 more carriersWith a free account
Plan types Dr. Mardini accepts, by number of carriers
- PPO9
- HMO7
- Medicare6
- EPO3
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Mazen Muhammad Mardini'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 Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Mazen Muhammad Mardini
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. Mazen Muhammad Mardini's NPI number?
Dr. Mazen Muhammad Mardini's NPI number is 1518909126. It was assigned on June 11, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mazen Muhammad Mardini?
Dr. Mazen Muhammad Mardini is a gastroenterologist in Lodi, California. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Mazen Muhammad Mardini practice?
Dr. Mardini practices at 521 South Ham Lane, Lodi, CA 95242. Dr. Mardini's primary practice is Lodi Outpatient Surgical Center in Lodi, California.
What is Dr. Mazen Muhammad Mardini's office phone number?
The practice phone on file for Dr. Mardini is (209) 333-0905.
What is Dr. Mazen Muhammad Mardini's medical license number?
Dr. Mardini's California license number on file is A35332, one of the licenses on file in 3 states.
Which states has Dr. Mazen Muhammad Mardini been licensed in?
Dmand AI has state licenses on file for Dr. Mardini in California (1980 to 2025), Michigan and Ohio (1978 to 1979).
Which hospitals is Dr. Mazen Muhammad Mardini affiliated with?
Dr. Mardini is affiliated with Adventist Health Lodi Memorial.
Does Dr. Mazen Muhammad Mardini accept Medicare?
Yes. CMS data shows Dr. Mardini billed Medicare for 558 services in 2024, and Dr. Mardini accepts Medicare assignment.
How many Medicare patients does Dr. Mazen Muhammad Mardini see?
CMS counts 369 Medicare patients who saw Dr. Mardini in 2024, with an average age of 74.
Is Dr. Mazen Muhammad Mardini board certified?
Yes. Dr. Mardini is board certified in gastroenterology by the American Board of Internal Medicine.
Show 6 more questionsShow fewer questions
What services does Dr. Mazen Muhammad Mardini bill to Medicare?
In 2024, Dr. Mardini's most billed Medicare services were office visit, new patient (99204), surgery: digestive system (45385) and office visit, established patient (99213).
Where did Dr. Mazen Muhammad Mardini go to medical school?
Dr. Mardini graduated from Damascus University Faculty of Medicine in 1973.
What drugs does Dr. Mazen Muhammad Mardini prescribe most?
In 2024 Medicare Part D data, Dr. Mardini's most prescribed drugs by claims were Sod Sulf-Potass Sulf-Mag Sulf, Omeprazole and Dexlansoprazole DR.
Has Dr. Mazen Muhammad Mardini received payments from drug or device companies?
CMS Open Payments shows $11,293 in general payments to Dr. Mardini from 8 companies from 2017 to 2025. The largest total came from Olympus America Inc.
How long has Dr. Mazen Muhammad Mardini been practicing?
Dr. Mardini graduated from medical school in 1973, 53 years ago.
What insurance does Dr. Mazen Muhammad Mardini accept?
Dr. Mardini is in network with 15 carriers, including United Healthcare, Elevance and HCSC. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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