Dr. Mariko Fitzgibbons, MD
- Medicare services, 2024
- 1,817
- Medicare patients, 2024
- 1,160
- Publications
- 4
- MIPS score, 2024
- 93
- Hospital affiliations
- 1
- Practice address
- 1500 Duarte Rd, Duarte, CA 91010
- Practice phone
- Call (800) 826-4673
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
City of Hope Comprehensive Cancer Center - Duarte
Duarte, California
Find Dr. Fitzgibbons' 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. Mariko Fitzgibbons is a diagnostic radiologist in Duarte, California
Dr. Fitzgibbons practices at City of Hope Comprehensive Cancer Center - Duarte in Duarte, California.
Dr. Fitzgibbons' NPI, 1396050365, was assigned on August 13, 2010. Dr. Fitzgibbons graduated from Feinberg School of Medicine in 2010. Dr. Fitzgibbons holds California license 118061.
- NPI
- 1396050365NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1951612886
- NPI enumeration date
- August 13, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (800) 826-4673
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mariko Fitzgibbons practices at City of Hope Comprehensive Cancer Center - Duarte in Duarte, California
Dr. Fitzgibbons' primary practice is City of Hope Comprehensive Cancer Center - Duarte, at 1500 Duarte Rd, Duarte, CA 91010 in Los Angeles County. The practice phone is (800) 826-4673.
- City of Hope Comprehensive Cancer Center - Duarte1500 Duarte Rd, Duarte, CA 91010 · Los Angeles CountyPhone(800) 826-4673
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mariko Fitzgibbons is affiliated with 3 sites of care and 1 medical group
Dr. Fitzgibbons' primary practice is City of Hope Comprehensive Cancer Center - Duarte in Duarte, California. Dr. Fitzgibbons is also affiliated with UCI Health - Orange. The medical group on file is City of Hope. Dmand AI also links Dr. Fitzgibbons to 1 more other site, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mariko Fitzgibbons' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fitzgibbons practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| City of Hope Comprehensive Cancer Center - Duarte | 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. Mariko Fitzgibbons is one of 4,096 diagnostic radiologists in California
Diagnostic radiology is Dr. Fitzgibbons' primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Fitzgibbons is board certified in diagnostic radiology by the American Board of Radiology. Dr. Fitzgibbons is licensed in California.
Specialties and state licenses
- Diagnostic radiology, CaliforniaPrimary
Diagnostic radiologists near Dr. Fitzgibbons
Counts of diagnostic radiologists 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. Mariko Fitzgibbons billed Medicare for 1,817 services in 2024
CMS data shows 1,817 Medicare services from Dr. Fitzgibbons across 23 procedure codes in 2024, for 1,160 Medicare patients. Medicare paid $113,770 for them.
Dr. Fitzgibbons' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 2,2822024: 1,80321%
- Surgery
- 2023: 02024: 14
Where Dr. Fitzgibbons' Medicare services took place, 2024
- In an office412%
- In a facility1,77698%
Dr. Fitzgibbons compared with the California median for diagnostic radiologists, 2024
- Dr. Fitzgibbons
- California median
- Medicare services
- 1,817vs 2,28120% below
- Medicare patients
- 1,160vs 1,34614% below
Medians across 3,734 diagnostic radiologists in California with Dmand AI profiles that report each measure.
Dr. Fitzgibbons' 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. Fitzgibbons and other diagnostic radiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mariko Fitzgibbons treated 1,160 Medicare patients in 2024, average age 71
CMS counts 1,160 Medicare patients who saw Dr. Fitzgibbons in 2024. The largest group is 65 to 74, with 607 patients. 75% of them have high blood pressure, and 71% have high cholesterol. 37% are also on Medicaid. Their average risk score is 2.95, 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. Fitzgibbons' median patient age at 66, with 54% women.
Dr. Fitzgibbons' Medicare patients by age, 2024
Dr. Fitzgibbons' Medicare patients by sex, 2024
- Women60552%
- Men55548%
Chronic conditions among Dr. Fitzgibbons' Medicare patients, 2024
- High blood pressure75%
- High cholesterol71%
- Cancer51%
- Arthritis46%
- Diabetes36%
- Ischemic heart disease33%
- Anxiety31%
- Mood disorders30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Fitzgibbons' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mariko Fitzgibbons scored 93 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Fitzgibbons for performance year 2024, reported as part of a group. Dr. Fitzgibbons accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Fitzgibbons' MIPS scores, performance year 2024
- 93of 100Final score
- 78.5of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 70of 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. Mariko Fitzgibbons has 4 publications on record
Dmand AI links 4 papers to Dr. Fitzgibbons, published from 2021 to 2024. Dr. Fitzgibbons' most frequent co-authors are Joanne E. Mortimer, MD, Bihong Tang Chen, MD and Daniel Benedict Schmolze, MD.
Dr. Fitzgibbons' papers by year, 2021 to 2024
Dr. Fitzgibbons' most frequent co-authors
- Joanne E. Mortimer, MD4 shared papers
- Bihong Tang Chen, MD2 shared papers
- Daniel Benedict Schmolze, MD2 shared papers
Recent publications by Dr. Fitzgibbons
Magn Reson Imaging
See who Dr. Fitzgibbons researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Fitzgibbons works with, so you can find a warm path to the right diagnostic radiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mariko Fitzgibbons received $41 in industry payments in 2016
CMS Open Payments shows 2 general payments to Dr. Fitzgibbons from 2 drug and device companies in 2016. Food and beverage make up the largest share, 100% of the total. Philips Electronics North America Corporation paid the most, $28.
Companies that paid Dr. Fitzgibbons the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mariko Fitzgibbons graduated from Feinberg School of Medicine
Dr. Fitzgibbons graduated from Feinberg School of Medicine in 2010.
- Medical school
- Board certified in diagnostic radiology
- Board certified in neuroradiology
Source: Dmand AI Professional Profile Data
Dr. Mariko Fitzgibbons accepts plans from 3 insurance carriers
Dr. Fitzgibbons is in network with 3 carriers, including LA Care, CMS Medicare and Molina. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
- LA Care
- CMS Medicare
- Molina
Plan types Dr. Fitzgibbons accepts, by number of carriers
- Medicare2
- HMO1
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Mariko Fitzgibbons'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 DataDmand AI Org Hierarchy 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) |
| 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) |
| 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) |
| 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. Mariko Fitzgibbons
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. Mariko Fitzgibbons' NPI number?
Dr. Mariko Fitzgibbons' NPI number is 1396050365. It was assigned on August 13, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Mariko Fitzgibbons?
Dr. Mariko Fitzgibbons is a diagnostic radiologist in Duarte, California. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Mariko Fitzgibbons practice?
Dr. Fitzgibbons practices at 1500 Duarte Rd, Duarte, CA 91010. Dr. Fitzgibbons' primary practice is City of Hope Comprehensive Cancer Center - Duarte in Duarte, California. Dmand AI also links Dr. Fitzgibbons to 1 other site.
What is Dr. Mariko Fitzgibbons' office phone number?
The practice phone on file for Dr. Fitzgibbons is (800) 826-4673.
What is Dr. Mariko Fitzgibbons' medical license number?
Dr. Fitzgibbons holds California license 118061.
Which hospitals is Dr. Mariko Fitzgibbons affiliated with?
Dr. Fitzgibbons is affiliated with UCI Health - Orange.
What medical group is Dr. Mariko Fitzgibbons part of?
Dr. Fitzgibbons is linked to City of Hope.
Does Dr. Mariko Fitzgibbons accept Medicare?
Yes. CMS data shows Dr. Fitzgibbons billed Medicare for 1,817 services in 2024, and Dr. Fitzgibbons accepts Medicare assignment.
What is Dr. Mariko Fitzgibbons' MIPS score?
Dr. Fitzgibbons' MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.
How many Medicare patients does Dr. Mariko Fitzgibbons see?
CMS counts 1,160 Medicare patients who saw Dr. Fitzgibbons in 2024, with an average age of 71.
Show 8 more questionsShow fewer questions
Is Dr. Mariko Fitzgibbons board certified?
Yes. Dr. Fitzgibbons is board certified in diagnostic radiology by the American Board of Radiology.
What services does Dr. Mariko Fitzgibbons bill to Medicare?
In 2024, Dr. Fitzgibbons' most billed Medicare services were diagnostic imaging (70553), diagnostic imaging (71260) and diagnostic imaging (70491).
Where did Dr. Mariko Fitzgibbons go to medical school?
Dr. Fitzgibbons graduated from Feinberg School of Medicine in 2010.
Has Dr. Mariko Fitzgibbons received payments from drug or device companies?
CMS Open Payments shows $41 in general payments to Dr. Fitzgibbons from 2 companies from 2016 to 2016. The largest total came from Philips Electronics North America Corporation.
How long has Dr. Mariko Fitzgibbons been practicing?
Dr. Fitzgibbons graduated from medical school in 2010, 16 years ago.
Does Dr. Mariko Fitzgibbons do research?
Dmand AI links 4 publications to Dr. Fitzgibbons, published from 2021 to 2024.
Who does Dr. Mariko Fitzgibbons publish with?
Dr. Fitzgibbons' most frequent co-authors are Joanne E. Mortimer, MD (4 shared papers), Bihong Tang Chen, MD (2 shared papers) and Daniel Benedict Schmolze, MD (2 shared papers).
What insurance does Dr. Mariko Fitzgibbons accept?
Dr. Fitzgibbons is in network with 3 carriers, including LA Care, CMS Medicare and Molina. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
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