Dr. John Joseph Mazzucco, MD
- Medicare services, 2024
- 295
- Medicare patients, 2024
- 202
- Part D claims, 2024
- 162
- MIPS score, 2024
- 100
- Hospital affiliations
- 1
- Practice address
- 575 Beech Street, Holyoke, MA 01040
- Practice phone
- Call (413) 534-2500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Mazzucco'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.
Dr. John Joseph Mazzucco is a general surgeon in Holyoke, Massachusetts
Dr. Mazzucco practices at Holyoke Medical Center in Holyoke, Massachusetts, part of Valley Health Systems.
Dr. Mazzucco's NPI, 1275515322, was assigned on November 15, 2005. Dr. Mazzucco graduated from Loyola University of Chicago, Stritch School of Medicine in 1988. Dr. Mazzucco holds Massachusetts license 262537.
- NPI
- 1275515322NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7214837905
- NPI enumeration date
- November 15, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (413) 534-2500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 64
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Joseph Mazzucco practices at Holyoke Medical Center in Holyoke, Massachusetts
Dr. Mazzucco's primary practice is Holyoke Medical Center, at 575 Beech Street, Holyoke, MA 01040 in Hampden County. The practice phone is (413) 534-2500.
- Holyoke Medical Center575 Beech Street, Holyoke, MA 01040 · Hampden CountyPhone(413) 534-2500
Source: Dmand AI Affiliation Data
Dr. John Joseph Mazzucco is affiliated with 3 sites of care and 2 medical groups
Dr. Mazzucco's primary practice is Holyoke Medical Center in Holyoke, Massachusetts, part of Valley Health Systems. The medical group on file is Holyoke Medical Center. Dmand AI also links Dr. Mazzucco to 2 more group practices and clinics and 1 medical group, each named with a free account. Dr. Mazzucco's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Joseph Mazzucco's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mazzucco practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Holyoke Medical Center | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Joseph Mazzucco is one of 732 general surgeons in Massachusetts
Surgery is Dr. Mazzucco's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dmand AI has Dr. Mazzucco's licenses on file in 2 states: Massachusetts and Connecticut.
Specialties and state licenses
- Surgery, MassachusettsPrimary
- Connecticut license
General surgeons near Dr. Mazzucco
Counts of general surgeons 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. John Joseph Mazzucco billed Medicare for 295 services in 2024
CMS data shows 295 Medicare services from Dr. Mazzucco across 5 procedure codes in 2024, for 202 Medicare patients. Medicare paid $19,943 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Mazzucco's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3242024: 2959%
Dr. Mazzucco compared with the Massachusetts median for general surgeons, 2024
- Dr. Mazzucco
- Massachusetts median
- Medicare services
- 295vs 20048% above
- Medicare patients
- 202vs 15233% above
- Part D claims
- 107vs 224.9 times
Medians across 688 general surgeons in Massachusetts with Dmand AI profiles that report each measure.
Dr. Mazzucco'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. Mazzucco and other general surgeons in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Joseph Mazzucco treated 202 Medicare patients in 2024, average age 73
CMS counts 202 Medicare patients who saw Dr. Mazzucco in 2024. The largest group is 65 to 74, with 72 patients. 75% of them have high cholesterol, and 74% have high blood pressure. 37% are also on Medicaid. Their average risk score is 1.45, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Mazzucco's median patient age at 56, with 67% women.
Dr. Mazzucco's Medicare patients by age, 2024
Dr. Mazzucco's Medicare patients by sex, 2024
- Women12662%
- Men7638%
Chronic conditions among Dr. Mazzucco's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Arthritis45%
- Cancer40%
- Anxiety36%
- Diabetes32%
- Mood disorders29%
- Chronic kidney disease28%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mazzucco's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women67%
- Men32%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Joseph Mazzucco wrote 162 Medicare Part D claims in 2024
In 2024, Dr. Mazzucco wrote 162 Medicare Part D claims for 82 patients. 99% of them were for generic drugs. CMS names the drug for 107 of them, across 3 drugs with 11 or more claims each, at $669 in total drug cost. In 2023, CMS named 78 claims across 3 drugs.
Dr. Mazzucco's Part D claims by kind of drug, 2024
- Generic160 claims99%
- Brand-name and other2 claims1%
Dr. Mazzucco'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. Mazzucco's Part D claims, 2024
- Opioids57%93 of 162 claims
- Antibiotics23%37 of 162 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: 782024: 10737%
Drugs named by CMS: 3 in 2024, 3 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. John Joseph Mazzucco scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Mazzucco for performance year 2024, reported through an alternative payment model (APM). Dr. Mazzucco accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 17 procedures of hernia repair - groin (open) by Dr. Mazzucco, more than 95% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Mazzucco's MIPS scores, performance year 2024
- 100of 100Final score
- 83of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Mazzucco ranks in Medicare procedure volume
- Hernia repair - groin (open)
- 95th percentile17 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Mastectomy: 1 to 10 procedures (CMS shows small counts as a range)
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
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. John Joseph Mazzucco received $1,487 in industry payments from 2016 to 2025
CMS Open Payments shows 33 general payments to Dr. Mazzucco from 15 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Medtronic, Inc. paid the most, $422.
General payments to Dr. Mazzucco by program year, 2016 to 2025
Companies that paid Dr. Mazzucco the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Joseph Mazzucco graduated from Loyola University of Chicago, Stritch School of Medicine
Dr. Mazzucco graduated from Loyola University of Chicago, Stritch School of Medicine in 1988.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Joseph Mazzucco'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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (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. John Joseph Mazzucco
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. John Joseph Mazzucco's NPI number?
Dr. John Joseph Mazzucco's NPI number is 1275515322. It was assigned on November 15, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. John Joseph Mazzucco?
Dr. John Joseph Mazzucco is a general surgeon in Holyoke, Massachusetts. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. John Joseph Mazzucco practice?
Dr. Mazzucco practices at 575 Beech Street, Holyoke, MA 01040. Dr. Mazzucco's primary practice is Holyoke Medical Center in Holyoke, Massachusetts, part of Valley Health Systems. Dmand AI also links Dr. Mazzucco to 2 group practices and clinics and 1 medical group.
What is Dr. John Joseph Mazzucco's office phone number?
The practice phone on file for Dr. Mazzucco is (413) 534-2500.
What is Dr. John Joseph Mazzucco's medical license number?
Dr. Mazzucco holds Massachusetts license 262537, one of the licenses on file in 2 states.
Which states has Dr. John Joseph Mazzucco been licensed in?
Dmand AI has state licenses on file for Dr. Mazzucco in Massachusetts and Connecticut.
Which hospitals is Dr. John Joseph Mazzucco affiliated with?
Dr. Mazzucco practices at Holyoke Medical Center in Holyoke, Massachusetts.
What medical group is Dr. John Joseph Mazzucco part of?
Dr. Mazzucco is linked to Holyoke Medical Center. Dmand AI links Dr. Mazzucco to 1 more medical group.
Does Dr. John Joseph Mazzucco accept Medicare?
Yes. CMS data shows Dr. Mazzucco billed Medicare for 295 services in 2024, and Dr. Mazzucco accepts Medicare assignment.
What is Dr. John Joseph Mazzucco's MIPS score?
Dr. Mazzucco's MIPS final score for performance year 2024 is 100 out of 100, reported through an alternative payment model (APM).
Show 6 more questionsShow fewer questions
How many Medicare patients does Dr. John Joseph Mazzucco see?
CMS counts 202 Medicare patients who saw Dr. Mazzucco in 2024, with an average age of 73.
What services does Dr. John Joseph Mazzucco bill to Medicare?
In 2024, Dr. Mazzucco's most billed Medicare services were office visit, established patient (99213), hospital inpatient care (99222) and hospital inpatient care (99232).
Where did Dr. John Joseph Mazzucco go to medical school?
Dr. Mazzucco graduated from Loyola University of Chicago, Stritch School of Medicine in 1988.
What drugs does Dr. John Joseph Mazzucco prescribe most?
In 2024 Medicare Part D data, Dr. Mazzucco's most prescribed drugs by claims were Oxycodone HCl, Doxycycline Hyclate and Nystatin.
Has Dr. John Joseph Mazzucco received payments from drug or device companies?
CMS Open Payments shows $1,487 in general payments to Dr. Mazzucco from 15 companies from 2016 to 2025. The largest total came from Medtronic, Inc.
How long has Dr. John Joseph Mazzucco been practicing?
Dr. Mazzucco graduated from medical school in 1988, 38 years ago.
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