Peter M. Mazzarese, PA
- Part D claims, 2024
- 62
- Hospital affiliations
- 2
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 9455 Clairemont Mesa Blvd, San Diego, CA 92123
- Practice phone
- Call (619) 528-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Kaiser Permanente San Diego Medical Center
San Diego, California
Find Peter Mazzarese's 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.
Peter M. Mazzarese is a physician assistant in San Diego, California
Peter Mazzarese practices at Kaiser Permanente San Diego Medical Center in San Diego, California.
Peter Mazzarese's NPI, 1124099387, was assigned on January 27, 2006. Peter Mazzarese holds California license PA16565.
- NPI
- 1124099387NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4981755048
- NPI enumeration date
- January 27, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (619) 528-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Peter M. Mazzarese practices at Kaiser Permanente San Diego Medical Center in San Diego, California
Peter Mazzarese's primary practice is Kaiser Permanente San Diego Medical Center, at 9455 Clairemont Mesa Blvd, San Diego, CA 92123 in San Diego County. The practice phone is (619) 528-5000.
- Kaiser Permanente San Diego Medical Center9455 Clairemont Mesa Blvd, San Diego, CA 92123 · San Diego CountyPhone(619) 528-5000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Peter M. Mazzarese is affiliated with 3 sites of care and 1 medical group
Peter Mazzarese's primary practice is Kaiser Permanente San Diego Medical Center in San Diego, California. Peter Mazzarese is also affiliated with Kaiser Permanente Zion Medical Center. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Peter Mazzarese to 1 more hospital, 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 Peter M. Mazzarese's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Peter Mazzarese practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente San Diego Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Peter M. Mazzarese is one of 11,482 physician assistants in California
Physician assistant is Peter Mazzarese's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Peter Mazzarese is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). Peter Mazzarese is licensed in California.
Specialties and state licenses
- Physician assistant, CaliforniaPrimary
Physician assistants near Peter Mazzarese
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
Peter M. Mazzarese's patients have a median age of 50
Across all payers, Dmand AI patient panel data puts Peter Mazzarese's median patient age at 50, with 52% women.
Peter Mazzarese's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 50
Patient panel by sex, all payers
- Women52%
- Men47%
Source: Dmand AI Patient Panel Data
Peter M. Mazzarese wrote 62 Medicare Part D claims in 2024
In 2024, Peter Mazzarese wrote 62 Medicare Part D claims for 36 patients. 98% of them were for generic drugs. CMS names the drug for 27 of them, across 2 drugs with 11 or more claims each, at $376 in total drug cost.
Peter Mazzarese's Part D claims by kind of drug, 2024
- Generic61 claims98%
- Brand-name and other1 claims2%
Peter Mazzarese'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 Peter Mazzarese's Part D claims, 2024
- Opioids29%18 of 62 claims
- Antibiotics18%11 of 62 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
How Peter M. Mazzarese takes part in Medicare
Peter Mazzarese 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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Peter M. Mazzarese is board certified in certified physician assistant
- Board certified in certified physician assistant
Source: Dmand AI Professional Profile Data
Sources for Peter M. Mazzarese'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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 Peter M. Mazzarese
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Peter M. Mazzarese's NPI number?
Peter M. Mazzarese's NPI number is 1124099387. It was assigned on January 27, 2006, and it is active in the NPI Registry.
What does Peter M. Mazzarese specialize in?
Peter M. Mazzarese is a physician assistant in San Diego, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Peter M. Mazzarese practice?
Peter Mazzarese practices at 9455 Clairemont Mesa Blvd, San Diego, CA 92123. Peter Mazzarese's primary practice is Kaiser Permanente San Diego Medical Center in San Diego, California. Dmand AI also links Peter Mazzarese to 1 hospital.
What is Peter M. Mazzarese's office phone number?
The practice phone on file for Peter Mazzarese is (619) 528-5000.
What is Peter M. Mazzarese's medical license number?
Peter Mazzarese holds California license PA16565.
Which hospitals is Peter M. Mazzarese affiliated with?
Peter Mazzarese is affiliated with Kaiser Permanente Zion Medical Center. Dmand AI links Peter Mazzarese to 1 more hospital.
What medical group is Peter M. Mazzarese part of?
Peter Mazzarese is linked to Southern California Permanente Medical Group.
Does Peter M. Mazzarese accept Medicare?
Yes. CMS lists Peter Mazzarese as accepting Medicare assignment.
Is Peter M. Mazzarese board certified?
Yes. Peter Mazzarese is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA).
What drugs does Peter M. Mazzarese prescribe most?
In 2024 Medicare Part D data, Peter Mazzarese's most prescribed drugs by claims were Gabapentin and Oxycodone HCl.
How long has Peter M. Mazzarese been practicing?
Peter Mazzarese graduated from medical school in 2002, 24 years ago.
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