Gastrointest Endosc
Biliary Tract NeoplasmsHamartomaKlebsiella Infections
Dr. Nader Mirhoseni, MD
NPI1588645964PAC ID2668416983
- Medicare services, 2024
- 1,777
- Medicare patients, 2024
- 717
- Part D claims, 2024
- 637
- Publications
- 1
- MIPS score, 2024
- 20
- Practice address
- 27700 Medical Center Rd, Mission Viejo, CA 92691
- Practice phone
- Call (949) 365-2447
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mission Hospital - Unit
Acute Care Hospital-Unit · Mission Viejo, California
Find Dr. Mirhoseni's professional email, personal email and mobile number
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Dr. Nader Mirhoseni is a gastroenterologist in Mission Viejo, California
Dr. Mirhoseni practices at Mission Hospital - Unit in Mission Viejo, California.
Dr. Mirhoseni's NPI, 1588645964, was assigned on November 10, 2005. Dr. Mirhoseni holds California license A85775.
NPI and contact details
- NPI
- 1588645964NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2668416983
- NPI enumeration date
- November 10, 2005
- NPI status
- Active
- Offers telehealth
- Yes
- Practice phone
- (949) 365-2447
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nader Mirhoseni practices at Mission Hospital - Unit in Mission Viejo, California
Dr. Mirhoseni's primary practice is Mission Hospital - Unit, at 27700 Medical Center Rd, Mission Viejo, CA 92691 in Orange County. The practice phone is (949) 365-2447.
- Mission Hospital - Unit27700 Medical Center Rd, Mission Viejo, CA 92691 · Orange CountyPhone(949) 365-2447
Source: Dmand AI Affiliation Data
Dr. Nader Mirhoseni is affiliated with 12 sites of care and 5 medical groups
Dr. Mirhoseni's primary practice is Mission Hospital - Unit in Mission Viejo, California. Dr. Mirhoseni is also affiliated with Providence Mission Hospital. The medical group on file is St. Jude Heritage Medical Group. Dmand AI also links Dr. Mirhoseni to 4 more hospitals, 5 group practices and clinics, 4 medical groups and 1 physician office, each named with a free account.
Mission Hospital - UnitPrimary
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Nader Mirhoseni's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mirhoseni practices, 12 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mission Hospital - Unit | Available with a free account |
| +11 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nader Mirhoseni is one of 1,977 gastroenterologists in California
Gastroenterology is Dr. Mirhoseni's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Mirhoseni is licensed in California.
Specialties and state licenses
- Gastroenterology, CaliforniaPrimary
Gastroenterologists near Dr. Mirhoseni
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. Nader Mirhoseni billed Medicare for 1,777 services in 2024
CMS data shows 1,777 Medicare services from Dr. Mirhoseni across 21 procedure codes in 2024, for 717 Medicare patients. Medicare paid $186,557 for them.
Medicare services, 20241,777
Medicare patients717
Paid by Medicare$186,557
Procedure codes21
Dr. Mirhoseni's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,0012024: 1,21521%
- Surgery
- 2023: 4372024: 54024%
- Other services
- 2023: 182024: 2222%
Where Dr. Mirhoseni's Medicare services took place, 2024
- In an office28316%
- In a facility1,49484%
Dr. Mirhoseni compared with the California median for gastroenterologists, 2024
- Dr. Mirhoseni
- California median
- Medicare services
- 1,777vs 5863.0 times
- Medicare patients
- 717vs 3022.4 times
- Part D claims
- 431vs 38013% above
Medians across 1,875 gastroenterologists in California with Dmand AI profiles that report each measure.
Dr. Mirhoseni'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. Mirhoseni and other gastroenterologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nader Mirhoseni treated 717 Medicare patients in 2024, average age 76
CMS counts 717 Medicare patients who saw Dr. Mirhoseni in 2024. The largest group is 65 to 74, with 291 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 30% are also on Medicaid. Their average risk score is 1.95, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Mirhoseni's median patient age at 65, with 53% women.
Medicare patients, 2024717
Average age76
Average risk score1.95
Also on Medicaid30%
Dr. Mirhoseni's Medicare patients by age, 2024
Dr. Mirhoseni's Medicare patients by sex, 2024
- Women35650%
- Men36150%
Chronic conditions among Dr. Mirhoseni's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis49%
- Diabetes40%
- Ischemic heart disease38%
- Chronic kidney disease35%
- Atrial fibrillation30%
- Heart failure30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mirhoseni's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nader Mirhoseni wrote 637 Medicare Part D claims in 2024
In 2024, Dr. Mirhoseni wrote 637 Medicare Part D claims for 183 patients. 63% of them were for generic drugs. CMS names the drug for 431 of them, across 11 drugs with 11 or more claims each, at $499,747 in total drug cost. In 2023, CMS named 422 claims across 13 drugs.
Part D claims, 2024637
Drugs named by CMS11
Total drug cost$499,747
Part D patients183
Dr. Mirhoseni's Part D claims by kind of drug, 2024
- Generic400 claims63%
- Brand-name237 claims37%
Dr. Mirhoseni'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. Mirhoseni's Part D claims, 2024
- Antibiotics4%28 of 637 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: 4222024: 4312%
Drugs named by CMS: 11 in 2024, 13 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. Nader Mirhoseni scored 20 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 20 out of 100 for Dr. Mirhoseni for performance year 2024, reported individually. CMS lists Dr. Mirhoseni as offering telehealth. CMS counts 356 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Mirhoseni, more than 97% of the clinicians it reports for that procedure.
- Offers telehealth
- Yes
Dr. Mirhoseni's MIPS scores, performance year 2024
- 20of 100Final score
- 0of 100Quality
- 0of 100Improvement Activities
- 68of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Mirhoseni ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 97th percentile356 procedures
- Colonoscopy
- 92nd percentile179 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Nader Mirhoseni has 1 publication on record
Dmand AI links 1 paper to Dr. Mirhoseni in 2019. Dr. Mirhoseni's most frequent co-authors are Robert Daniel Lawson, MD and Zachary Stephen Neubert, DO.
Papers1
Dr. Mirhoseni's most frequent co-authors
Recent publications by Dr. Mirhoseni
See who Dr. Mirhoseni researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Mirhoseni works with, so you can find a warm path to the right gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Nader Mirhoseni received $13,764 in industry payments from 2016 to 2025
CMS Open Payments shows 637 general payments to Dr. Mirhoseni from 52 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 96% of the total. Abbvie Inc. paid the most, $2,094.
General payments to Dr. Mirhoseni by program year, 2016 to 2025
General payments to Dr. Mirhoseni by kind, 2016 to 2025
$13.8Kin total
- Food and beverage$13,24696%
- Travel and lodging$3473%
- Education$991%
- Gifts$721%
Companies that paid Dr. Mirhoseni the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Nader Mirhoseni'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)Clinician Public Reporting: Overall MIPS Performance (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) |
| 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. Nader Mirhoseni
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. Nader Mirhoseni's NPI number?
Dr. Nader Mirhoseni's NPI number is 1588645964. It was assigned on November 10, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Nader Mirhoseni?
Dr. Nader Mirhoseni is a gastroenterologist in Mission Viejo, California. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Nader Mirhoseni practice?
Dr. Mirhoseni practices at 27700 Medical Center Rd, Mission Viejo, CA 92691. Dr. Mirhoseni's primary practice is Mission Hospital - Unit in Mission Viejo, California. Dmand AI also links Dr. Mirhoseni to 4 hospitals, 5 group practices and clinics, 4 medical groups and 1 physician office.
What is Dr. Nader Mirhoseni's office phone number?
The practice phone on file for Dr. Mirhoseni is (949) 365-2447.
What is Dr. Nader Mirhoseni's medical license number?
Dr. Mirhoseni holds California license A85775.
Which hospitals is Dr. Nader Mirhoseni affiliated with?
Dr. Mirhoseni is affiliated with Providence Mission Hospital. Dmand AI links Dr. Mirhoseni to 5 more hospitals.
What medical group is Dr. Nader Mirhoseni part of?
Dr. Mirhoseni is linked to St. Jude Heritage Medical Group. Dmand AI links Dr. Mirhoseni to 4 more medical groups.
Does Dr. Nader Mirhoseni accept Medicare?
Yes. CMS data shows Dr. Mirhoseni billed Medicare for 1,777 services in 2024.
Does Dr. Nader Mirhoseni offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Mirhoseni as offering telehealth services.
What is Dr. Nader Mirhoseni's MIPS score?
Dr. Mirhoseni's MIPS final score for performance year 2024 is 20 out of 100, reported individually.
Show 7 more questionsShow fewer questions
How many Medicare patients does Dr. Nader Mirhoseni see?
CMS counts 717 Medicare patients who saw Dr. Mirhoseni in 2024, with an average age of 76.
What services does Dr. Nader Mirhoseni bill to Medicare?
In 2024, Dr. Mirhoseni's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99223) and office visit, established patient (99214).
What drugs does Dr. Nader Mirhoseni prescribe most?
In 2024 Medicare Part D data, Dr. Mirhoseni's most prescribed drugs by claims were Omeprazole, Linzess and Pantoprazole Sodium.
Has Dr. Nader Mirhoseni received payments from drug or device companies?
CMS Open Payments shows $13,764 in general payments to Dr. Mirhoseni from 52 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Nader Mirhoseni been practicing?
Dr. Mirhoseni graduated from medical school in 1998, 28 years ago.
Does Dr. Nader Mirhoseni do research?
Dmand AI links 1 publication to Dr. Mirhoseni.
Who does Dr. Nader Mirhoseni publish with?
Dr. Mirhoseni's most frequent co-authors are Robert Daniel Lawson, MD (1 shared paper) and Zachary Stephen Neubert, DO (1 shared paper).
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