Dr. Maziar Zamani, MD
- Medicare services, 2024
- 2,336
- Medicare patients, 2024
- 495
- Part D claims, 2024
- 11,566
- MIPS score, 2024
- 82
- Hospital affiliations
- 3
- Practice address
- 24221 Calle De Louisa, Laguna Hills, CA 92653
- Practice phone
- Call (949) 465-8155
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Saddleback Medical Group Inc
Laguna Hills, California
Find Dr. Zamani's professional email, personal email and mobile number
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Dr. Maziar Zamani is an internist in Laguna Hills, California
Dr. Zamani practices at Saddleback Medical Group Inc in Laguna Hills, California.
Dr. Zamani's NPI, 1518056027, was assigned on October 12, 2006. Dr. Zamani graduated from University of Vermont College of Medicine in 1996. Dr. Zamani holds California license A64135.
- NPI
- 1518056027NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8022089036
- NPI enumeration date
- October 12, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (949) 465-8155
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Maziar Zamani practices at Saddleback Medical Group Inc in Laguna Hills, California
Dr. Zamani's primary practice is Saddleback Medical Group Inc, at 24221 Calle De Louisa, Laguna Hills, CA 92653 in Orange County. The practice phone is (949) 465-8155.
- Saddleback Medical Group Inc24221 Calle De Louisa, Laguna Hills, CA 92653 · Orange CountyPhone(949) 465-8155
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Maziar Zamani is affiliated with 13 sites of care and 2 medical groups
Dr. Zamani's primary practice is Saddleback Medical Group Inc in Laguna Hills, California. Dr. Zamani is also affiliated with MemorialCare Saddleback Medical Center. The medical group on file is Optum - Downtown Los Angeles. Dmand AI also links Dr. Zamani to 2 more hospitals, 4 home health agencies, 2 group practices and clinics, 1 physician office, 1 hospice, 1 skilled nursing facility and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Maziar Zamani's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zamani practices, 12 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Saddleback Medical Group Inc | Available with a free account |
| +12 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Maziar Zamani is one of 16,751 internists in California
Internal medicine is Dr. Zamani's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Zamani is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Zamani
Counts of internists 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. Maziar Zamani billed Medicare for 2,336 services in 2024
CMS data shows 2,336 Medicare services from Dr. Zamani across 33 procedure codes in 2024, for 495 Medicare patients. Medicare paid $213,729 for them. Every service was in an office.
Dr. Zamani's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,2702024: 1,2791%
- Lab and pathology
- 2023: 6,7642024: 53092%
- Other services
- 2023: 5962024: 36339%
- Surgery
- 2023: 9062024: 9290%
- Tests and treatments
- 2023: 612024: 4920%
- Drugs given in the office
- 2023: 262024: 2312%
Dr. Zamani compared with the California median for internists, 2024
- Dr. Zamani
- California median
- Medicare services
- 2,336vs 3616.5 times
- Medicare patients
- 495vs 1513.3 times
- Part D claims
- 10,781vs 42125.6 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Zamani'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Maziar Zamani treated 495 Medicare patients in 2024, average age 78
CMS counts 495 Medicare patients who saw Dr. Zamani in 2024. The largest group is 75 to 84, with 192 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.19, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Zamani's median patient age at 77, with 56% women.
Dr. Zamani's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Zamani's Medicare patients by sex, 2024
- Women24048%
- Men25552%
Chronic conditions among Dr. Zamani's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis42%
- Diabetes33%
- Ischemic heart disease28%
- Anxiety23%
- Atrial fibrillation22%
- Chronic kidney disease22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zamani's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 77
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Maziar Zamani wrote 11,566 Medicare Part D claims in 2024
In 2024, Dr. Zamani wrote 11,566 Medicare Part D claims for 707 patients. 88% of them were for generic drugs. CMS names the drug for 10,781 of them, across 154 drugs with 11 or more claims each, at $794,760 in total drug cost. In 2023, CMS named 10,293 claims across 144 drugs.
Dr. Zamani's Part D claims by kind of drug, 2024
- Generic10,177 claims88%
- Brand-name1,363 claims12%
- Other26 claims0%
Dr. Zamani'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. Zamani's Part D claims, 2024
- Opioids1%115 of 11,566 claims
- Antibiotics2%243 of 11,566 claims
- Antipsychotics, patients 65 and over1%98 of 11,566 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: 10,2932024: 10,7815%
Drugs named by CMS: 154 in 2024, 144 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. Maziar Zamani scored 82 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for Dr. Zamani for performance year 2024, reported individually. Dr. Zamani accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Zamani as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Zamani's MIPS scores, performance year 2024
- 82of 100Final score
- 90.9of 100Quality
- 71of 100Promoting Interoperability
- 40of 100Improvement Activities
- 72of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Maziar Zamani received $630 in industry payments from 2016 to 2023
CMS Open Payments shows 31 general payments to Dr. Zamani from 14 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $145.
General payments to Dr. Zamani by program year, 2016 to 2023
Companies that paid Dr. Zamani the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Maziar Zamani graduated from University of Vermont College of Medicine
Dr. Zamani graduated from University of Vermont College of Medicine in 1996.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Maziar Zamani'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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)Clinician Public Reporting: Overall MIPS Performance (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 |
| 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. Maziar Zamani
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. Maziar Zamani's NPI number?
Dr. Maziar Zamani's NPI number is 1518056027. It was assigned on October 12, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Maziar Zamani?
Dr. Maziar Zamani is an internist in Laguna Hills, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Maziar Zamani practice?
Dr. Zamani practices at 24221 Calle De Louisa, Laguna Hills, CA 92653. Dr. Zamani's primary practice is Saddleback Medical Group Inc in Laguna Hills, California. Dmand AI also links Dr. Zamani to 2 hospitals, 4 home health agencies, 2 group practices and clinics, 1 physician office, 1 hospice, 1 skilled nursing facility and 1 medical group.
What is Dr. Maziar Zamani's office phone number?
The practice phone on file for Dr. Zamani is (949) 465-8155.
What is Dr. Maziar Zamani's medical license number?
Dr. Zamani holds California license A64135.
Which hospitals is Dr. Maziar Zamani affiliated with?
Dr. Zamani is affiliated with MemorialCare Saddleback Medical Center. Dmand AI links Dr. Zamani to 2 more hospitals.
What medical group is Dr. Maziar Zamani part of?
Dr. Zamani is linked to Optum - Downtown Los Angeles. Dmand AI links Dr. Zamani to 1 more medical group.
Does Dr. Maziar Zamani accept Medicare?
Yes. CMS data shows Dr. Zamani billed Medicare for 2,336 services in 2024, and Dr. Zamani accepts Medicare assignment.
Does Dr. Maziar Zamani offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Zamani as offering telehealth services.
What is Dr. Maziar Zamani's MIPS score?
Dr. Zamani's MIPS final score for performance year 2024 is 82 out of 100, reported individually.
Show 6 more questionsShow fewer questions
How many Medicare patients does Dr. Maziar Zamani see?
CMS counts 495 Medicare patients who saw Dr. Zamani in 2024, with an average age of 78.
What services does Dr. Maziar Zamani bill to Medicare?
In 2024, Dr. Zamani's most billed Medicare services were office visit, established patient (99215), office visit, established patient (99214) and medicare service (G0439).
Where did Dr. Maziar Zamani go to medical school?
Dr. Zamani graduated from University of Vermont College of Medicine in 1996.
What drugs does Dr. Maziar Zamani prescribe most?
In 2024 Medicare Part D data, Dr. Zamani's most prescribed drugs by claims were Levothyroxine Sodium, Atorvastatin Calcium and Losartan Potassium.
Has Dr. Maziar Zamani received payments from drug or device companies?
CMS Open Payments shows $630 in general payments to Dr. Zamani from 14 companies from 2016 to 2023. The largest total came from Abbvie Inc.
How long has Dr. Maziar Zamani been practicing?
Dr. Zamani graduated from medical school in 1996, 30 years ago.
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