Fabio Alejandro Mazzarelli II, PA
- Medicare services, 2024
- 115
- Medicare patients, 2024
- 126
- Part D claims, 2024
- 140
- MIPS score, 2024
- 85
- Hospital affiliations
- 2
- Practice address
- 300 Hillmont Avenue, Ventura, CA 93003
- Practice phone
- Call (805) 652-6075
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Fabio Mazzarelli's professional email, personal email and mobile number
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Fabio Alejandro Mazzarelli II is a physician assistant in Ventura, California
Fabio Mazzarelli practices at Ventura County Medical Center in Ventura, California, part of Ventura County Health Care Agency.
Fabio Mazzarelli's NPI, 1821510488, was assigned on July 14, 2017. Fabio Mazzarelli holds California license 55204.
- NPI
- 1821510488NPI Registry (opens in a new tab)
- NPI enumeration date
- July 14, 2017
- NPI status
- Active
- Practice phone
- (805) 652-6075
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Fabio Alejandro Mazzarelli II practices at Ventura County Medical Center in Ventura, California
Fabio Mazzarelli's primary practice is Ventura County Medical Center, at 300 Hillmont Avenue, Ventura, CA 93003 in Ventura County. The practice phone is (805) 652-6075.
- Ventura County Medical Center300 Hillmont Avenue, Ventura, CA 93003 · Ventura CountyPhone(805) 652-6075
Source: Dmand AI Affiliation Data
Fabio Alejandro Mazzarelli II is affiliated with 3 sites of care and 4 medical groups
Fabio Mazzarelli's primary practice is Ventura County Medical Center in Ventura, California, part of Ventura County Health Care Agency. Fabio Mazzarelli is also affiliated with Kaweah Health Medical Center. The medical group on file is Seaside Emergency Associates. Dmand AI also links Fabio Mazzarelli to 3 more medical groups and 1 therapy and rehab clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Fabio Alejandro Mazzarelli II's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Fabio Mazzarelli practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ventura County Medical Center | Available with a free account |
| +2 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Ventura County Health Care Agency and 6.2K+ hospitals, with verified contacts in the same login.
Fabio Alejandro Mazzarelli II is one of 11,482 physician assistants in California
Physician assistant is Fabio Mazzarelli's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Fabio Mazzarelli is licensed in California.
Specialties and state licenses
- Physician assistant, CaliforniaPrimary
Physician assistants near Fabio Mazzarelli
Counts of physician assistants 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
Fabio Alejandro Mazzarelli II billed Medicare for 115 services in 2024
CMS data shows 115 Medicare services from Fabio Mazzarelli across 2 procedure codes in 2024, for 126 Medicare patients. Medicare paid $10,361 for them. Every service was in a facility, such as a hospital, rather than an office.
Fabio Mazzarelli compared with the California median for physician assistants, 2024
- Fabio Mazzarelli
- California median
- Medicare services
- 115vs 20444% below
- Medicare patients
- 126vs 10520% above
- Part D claims
- 42vs 24383% below
Medians across 7,065 physician assistants in California with Dmand AI profiles that report each measure.
Fabio Mazzarelli'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
Fabio Alejandro Mazzarelli II treated 126 Medicare patients in 2024, average age 66
CMS counts 126 Medicare patients who saw Fabio Mazzarelli in 2024. The largest group is under 65, with 44 patients. 75% of them have high blood pressure, and 60% have high cholesterol. 72% are also on Medicaid. Their average risk score is 1.80, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Fabio Mazzarelli's median patient age at 39, with 57% women.
Fabio Mazzarelli's Medicare patients by age, 2024
Fabio Mazzarelli's Medicare patients by sex, 2024
- Women6451%
- Men6249%
Chronic conditions among Fabio Mazzarelli's Medicare patients, 2024
- High blood pressure75%
- High cholesterol60%
- Arthritis54%
- Anxiety42%
- Mood disorders41%
- Diabetes36%
- Depression32%
- Alcohol and drug use disorders28%
Share of Medicare patients with each condition. A patient can have several.
Fabio Mazzarelli's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 39
Patient panel by sex, all payers
- Women57%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Fabio Alejandro Mazzarelli II wrote 140 Medicare Part D claims in 2024
In 2024, Fabio Mazzarelli wrote 140 Medicare Part D claims for 101 patients. 93% of them were for generic drugs. CMS names the drug for 42 of them, across 3 drugs with 11 or more claims each, at $91 in total drug cost.
Fabio Mazzarelli's Part D claims by kind of drug, 2024
- Generic130 claims93%
- Brand-name and other10 claims7%
Fabio Mazzarelli'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 Fabio Mazzarelli's Part D claims, 2024
- Opioids14%19 of 140 claims
- Antibiotics29%41 of 140 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
Fabio Alejandro Mazzarelli II scored 85 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Fabio Mazzarelli for performance year 2024, reported as part of a group.
Fabio Mazzarelli's MIPS scores, performance year 2024
- 85of 100Final score
- 73.4of 100Quality
- 40of 100Improvement Activities
- 73of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Sources for Fabio Alejandro Mazzarelli II'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 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 | Clinician Public Reporting: Overall MIPS Performance (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 Fabio Alejandro Mazzarelli II
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Fabio Alejandro Mazzarelli II's NPI number?
Fabio Alejandro Mazzarelli II's NPI number is 1821510488. It was assigned on July 14, 2017, and it is active in the NPI Registry.
What does Fabio Alejandro Mazzarelli II specialize in?
Fabio Alejandro Mazzarelli II is a physician assistant in Ventura, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Fabio Alejandro Mazzarelli II practice?
Fabio Mazzarelli practices at 300 Hillmont Avenue, Ventura, CA 93003. Fabio Mazzarelli's primary practice is Ventura County Medical Center in Ventura, California, part of Ventura County Health Care Agency. Dmand AI also links Fabio Mazzarelli to 3 medical groups and 1 therapy and rehab clinic.
What is Fabio Alejandro Mazzarelli II's office phone number?
The practice phone on file for Fabio Mazzarelli is (805) 652-6075.
What is Fabio Alejandro Mazzarelli II's medical license number?
Fabio Mazzarelli holds California license 55204.
Which hospitals is Fabio Alejandro Mazzarelli II affiliated with?
Fabio Mazzarelli practices at Ventura County Medical Center in Ventura, California. Fabio Mazzarelli is also affiliated with Kaweah Health Medical Center.
What medical group is Fabio Alejandro Mazzarelli II part of?
Fabio Mazzarelli is linked to Seaside Emergency Associates. Dmand AI links Fabio Mazzarelli to 3 more medical groups.
Does Fabio Alejandro Mazzarelli II accept Medicare?
Yes. CMS data shows Fabio Mazzarelli billed Medicare for 115 services in 2024.
What is Fabio Alejandro Mazzarelli II's MIPS score?
Fabio Mazzarelli's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.
How many Medicare patients does Fabio Alejandro Mazzarelli II see?
CMS counts 126 Medicare patients who saw Fabio Mazzarelli in 2024, with an average age of 66.
Show 3 more questionsShow fewer questions
What services does Fabio Alejandro Mazzarelli II bill to Medicare?
In 2024, Fabio Mazzarelli's most billed Medicare services were emergency department visit (99285) and emergency department visit (99284).
What drugs does Fabio Alejandro Mazzarelli II prescribe most?
In 2024 Medicare Part D data, Fabio Mazzarelli's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Cephalexin and Naproxen.
How long has Fabio Alejandro Mazzarelli II been practicing?
Fabio Mazzarelli graduated from medical school in 2017, 9 years ago.
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