Dr. Joseph P. Mazzei, DO
- Medicare services, 2024
- 287
- Medicare patients, 2024
- 222
- Part D claims, 2024
- 232
- Hospital affiliations
- 2
- Medical groups
- 8
- Practice address
- 900 E Broadway, Bismarck, ND 58501
- Practice phone
- Call (701) 530-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Mazzei's professional email, personal email and mobile number
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Dr. Joseph P. Mazzei is an emergency medicine physician in Bismarck, North Dakota
Dr. Mazzei practices at CHI St. Alexius Health Bismarck in Bismarck, North Dakota, part of CommonSpirit Health.
Dr. Mazzei's NPI, 1548276991, was assigned on July 31, 2006. Dr. Mazzei graduated from Midwestern University, Chicago College of Osteopathic Med in 1999. Dr. Mazzei holds Arizona license 007596.
- NPI
- 1548276991NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8022917145
- NPI enumeration date
- July 31, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (701) 530-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Joseph P. Mazzei practices at CHI St. Alexius Health Bismarck in Bismarck, North Dakota
Dr. Mazzei's primary practice is CHI St. Alexius Health Bismarck, at 900 E Broadway, Bismarck, ND 58501 in Burleigh County. The practice phone is (701) 530-7000.
- CHI St. Alexius Health Bismarck900 E Broadway, Bismarck, ND 58501 · Burleigh CountyPhone(701) 530-7000
Source: Dmand AI Affiliation Data
Dr. Joseph P. Mazzei is affiliated with 3 sites of care and 8 medical groups
Dr. Mazzei's primary practice is CHI St. Alexius Health Bismarck in Bismarck, North Dakota, part of CommonSpirit Health. Dr. Mazzei is also affiliated with Exceptional Community Hospital Bullhead City. The medical group on file is HealthSource Partners. Dmand AI also links Dr. Mazzei to 7 more medical groups and 1 behavioral health center, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Joseph P. Mazzei's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mazzei practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| CHI St. Alexius Health Bismarck | Available with a free account |
| +2 more sites and 7 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Joseph P. Mazzei is one of 126 emergency medicine physicians in North Dakota
Emergency medicine is Dr. Mazzei's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Mazzei's licenses on file in 2 states: Arizona and Illinois.
Specialties and state licenses
- Emergency medicine, ArizonaPrimary
- Illinois license
Emergency medicine physicians near Dr. Mazzei
Counts of emergency medicine physicians 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. Joseph P. Mazzei billed Medicare for 287 services in 2024
CMS data shows 287 Medicare services from Dr. Mazzei across 4 procedure codes in 2024, for 222 Medicare patients. Medicare paid $18,672 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Mazzei's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2082024: 2174%
- Tests and treatments
- 2023: 02024: 70
Dr. Mazzei compared with the North Dakota median for emergency medicine physicians, 2024
- Dr. Mazzei
- North Dakota median
- Medicare services
- 287vs 297Close to median
- Medicare patients
- 222vs 28723% below
- Part D claims
- 96vs 422.3 times
Medians across 132 emergency medicine physicians in North Dakota with Dmand AI profiles that report each measure.
Dr. Mazzei'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. Joseph P. Mazzei treated 222 Medicare patients in 2024, average age 76
CMS counts 222 Medicare patients who saw Dr. Mazzei in 2024. The largest group is 75 to 84, with 95 patients. 75% of them have high blood pressure, and 73% have high cholesterol. 11% are also on Medicaid. Their average risk score is 1.37, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Mazzei's median patient age at 64, with 56% women.
Dr. Mazzei's Medicare patients by age, 2024
Dr. Mazzei's Medicare patients by sex, 2024
- Women12757%
- Men9543%
Chronic conditions among Dr. Mazzei's Medicare patients, 2024
- High blood pressure75%
- High cholesterol73%
- Arthritis53%
- Ischemic heart disease40%
- Chronic kidney disease37%
- Diabetes36%
- Depression25%
- Mood disorders25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mazzei's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
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. Joseph P. Mazzei wrote 232 Medicare Part D claims in 2024
In 2024, Dr. Mazzei wrote 232 Medicare Part D claims for 157 patients. 91% of them were for generic drugs. CMS names the drug for 96 of them, across 6 drugs with 11 or more claims each, at $819 in total drug cost. In 2023, CMS named 179 claims across 10 drugs.
Dr. Mazzei's Part D claims by kind of drug, 2024
- Generic212 claims91%
- Brand-name20 claims9%
Dr. Mazzei'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. Mazzei's Part D claims, 2024
- Opioids12%28 of 232 claims
- Antibiotics37%85 of 232 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: 1792024: 9646%
Drugs named by CMS: 6 in 2024, 10 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
How Dr. Joseph P. Mazzei takes part in Medicare
Dr. Mazzei accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Joseph P. Mazzei graduated from Midwestern University, Chicago College of Osteopathic Med
Dr. Mazzei graduated from Midwestern University, Chicago College of Osteopathic Med in 1999.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Joseph P. Mazzei'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 | Doctors and Clinicians National Downloadable File (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. Joseph P. Mazzei
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. Joseph P. Mazzei's NPI number?
Dr. Joseph P. Mazzei's NPI number is 1548276991. It was assigned on July 31, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Joseph P. Mazzei?
Dr. Joseph P. Mazzei is an emergency medicine physician in Bismarck, North Dakota. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Joseph P. Mazzei practice?
Dr. Mazzei practices at 900 E Broadway, Bismarck, ND 58501. Dr. Mazzei's primary practice is CHI St. Alexius Health Bismarck in Bismarck, North Dakota, part of CommonSpirit Health. Dmand AI also links Dr. Mazzei to 7 medical groups and 1 behavioral health center.
What is Dr. Joseph P. Mazzei's office phone number?
The practice phone on file for Dr. Mazzei is (701) 530-7000.
What is Dr. Joseph P. Mazzei's medical license number?
Dr. Mazzei holds Arizona license 007596, one of the licenses on file in 2 states.
Which states has Dr. Joseph P. Mazzei been licensed in?
Dmand AI has state licenses on file for Dr. Mazzei in Arizona and Illinois.
Which hospitals is Dr. Joseph P. Mazzei affiliated with?
Dr. Mazzei practices at CHI St. Alexius Health Bismarck in Bismarck, North Dakota. Dr. Mazzei is also affiliated with Exceptional Community Hospital Bullhead City.
What medical group is Dr. Joseph P. Mazzei part of?
Dr. Mazzei is linked to HealthSource Partners. Dmand AI links Dr. Mazzei to 7 more medical groups.
Does Dr. Joseph P. Mazzei accept Medicare?
Yes. CMS data shows Dr. Mazzei billed Medicare for 287 services in 2024, and Dr. Mazzei accepts Medicare assignment.
How many Medicare patients does Dr. Joseph P. Mazzei see?
CMS counts 222 Medicare patients who saw Dr. Mazzei in 2024, with an average age of 76.
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What services does Dr. Joseph P. Mazzei bill to Medicare?
In 2024, Dr. Mazzei's most billed Medicare services were emergency department visit (99284), heart test or procedure (93010) and emergency department visit (99283).
Where did Dr. Joseph P. Mazzei go to medical school?
Dr. Mazzei graduated from Midwestern University, Chicago College of Osteopathic Med in 1999.
What drugs does Dr. Joseph P. Mazzei prescribe most?
In 2024 Medicare Part D data, Dr. Mazzei's most prescribed drugs by claims were Methylprednisolone, Azithromycin and Ondansetron ODT.
How long has Dr. Joseph P. Mazzei been practicing?
Dr. Mazzei graduated from medical school in 1999, 27 years ago.
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