Dr. Stephen N. Zonca, MD
- Medicare services, 2024
- 544
- Medicare patients, 2024
- 247
- Part D claims, 2024
- 828
- Hospital affiliations
- 1
- Industry payments
- $2,449
- Practice address
- 1316 Mercy Dr, Muskegon, MI 49444
- Practice phone
- Call (231) 739-9461
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Muskegon Surgical Associates
Muskegon, Michigan
Find Dr. Zonca'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. Stephen N. Zonca is a plastic and reconstructive surgery physician in Muskegon, Michigan
Dr. Zonca practices at Muskegon Surgical Associates in Muskegon, Michigan.
Dr. Zonca's NPI, 1255394482, was assigned on April 10, 2006. Dr. Zonca graduated from Wayne State University School of Medicine in 1995. Dr. Zonca holds Michigan license O65662.
- NPI
- 1255394482NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6204898166
- NPI enumeration date
- April 10, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (231) 739-9461
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 57
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stephen N. Zonca practices at Muskegon Surgical Associates in Muskegon, Michigan
Dr. Zonca's primary practice is Muskegon Surgical Associates, at 1316 Mercy Dr, Muskegon, MI 49444 in Muskegon County. The practice phone is (231) 739-9461.
- Muskegon Surgical Associates1316 Mercy Dr, Muskegon, MI 49444 · Muskegon CountyPhone(231) 739-9461
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Stephen N. Zonca is affiliated with 4 sites of care and 1 medical group
Dr. Zonca's primary practice is Muskegon Surgical Associates in Muskegon, Michigan. Dr. Zonca is also affiliated with Trinity Health Muskegon Hospital. The medical group on file is Muskegon Surgical Associates. Dmand AI also links Dr. Zonca to 1 more group practice or clinic and 1 home health agency, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Stephen N. Zonca's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zonca practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Muskegon Surgical Associates | Available with a free account |
| +3 more affiliated sites | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Stephen N. Zonca is one of 60 plastics and reconstructive surgery physicians in Michigan
Plastic and reconstructive surgery is Dr. Zonca's primary specialty in the NPI Registry, under taxonomy code 2086S0122X. Dr. Zonca is licensed in Michigan.
Specialties and state licenses
- Plastic and reconstructive surgery, MichiganPrimary
Plastics and reconstructive surgery physicians near Dr. Zonca
Counts of plastics and reconstructive surgery 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. Stephen N. Zonca billed Medicare for 544 services in 2024
CMS data shows 544 Medicare services from Dr. Zonca across 11 procedure codes in 2024, for 247 Medicare patients. Medicare paid $29,869 for them.
Dr. Zonca's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 2602024: 2725%
- Office and hospital visits
- 2023: 2632024: 2723%
Where Dr. Zonca's Medicare services took place, 2024
- In an office42177%
- In a facility12323%
Dr. Zonca compared with the Michigan median for plastics and reconstructive surgery physicians, 2024
- Dr. Zonca
- Michigan median
- Medicare services
- 544vs 4412.4 times
- Medicare patients
- 247vs 624.0 times
- Part D claims
- 695vs 3023.2 times
Medians across 55 plastics and reconstructive surgery physicians in Michigan with Dmand AI profiles that report each measure.
Dr. Zonca'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.
Need commercial claims for Dr. Zonca?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Zonca and other plastics and reconstructive surgery physicians in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stephen N. Zonca treated 247 Medicare patients in 2024, average age 74
CMS counts 247 Medicare patients who saw Dr. Zonca in 2024. The largest group is 65 to 74, with 92 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 19% are also on Medicaid. Their average risk score is 2.07, 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. Zonca's median patient age at 67, with 51% women.
Dr. Zonca's Medicare patients by age, 2024
Dr. Zonca's Medicare patients by sex, 2024
- Women11346%
- Men13454%
Chronic conditions among Dr. Zonca's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Chronic kidney disease36%
- Diabetes36%
- Heart failure30%
- Anxiety26%
- Atrial fibrillation26%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zonca's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women51%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Stephen N. Zonca wrote 828 Medicare Part D claims in 2024
In 2024, Dr. Zonca wrote 828 Medicare Part D claims for 348 patients. 87% of them were for generic drugs. CMS names the drug for 695 of them, across 14 drugs with 11 or more claims each, at $13,141 in total drug cost. In 2023, CMS named 699 claims across 14 drugs.
Dr. Zonca's Part D claims by kind of drug, 2024
- Generic720 claims87%
- Brand-name108 claims13%
Dr. Zonca'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. Zonca's Part D claims, 2024
- Opioids15%127 of 828 claims
- Antibiotics29%239 of 828 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: 6992024: 6951%
Drugs named by CMS: 14 in 2024, 14 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. Stephen N. Zonca ranks in the 89th percentile for melanoma (skin cancer) excision in Medicare
Dr. Zonca accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 65 procedures of melanoma (skin cancer) excision by Dr. Zonca, more than 89% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Zonca ranks in Medicare procedure volume
- Removal of skin lesions
- 73rd percentile71 procedures
- Skin biopsy
- 72nd percentile69 procedures
- Melanoma (skin cancer) excision
- 89th percentile65 procedures
- Removal of tissue
- 71st percentile25 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Hip replacement: 1 to 10 procedures (CMS shows small counts as a range)
Mastectomy: 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); and Doctors and Clinicians Utilization Data (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Stephen N. Zonca received $2,449 in industry payments from 2016 to 2025
CMS Open Payments shows 63 general payments to Dr. Zonca from 19 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Merz North America, Inc. paid the most, $504.
General payments to Dr. Zonca by program year, 2016 to 2025
Companies that paid Dr. Zonca 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. Stephen N. Zonca graduated from Wayne State University School of Medicine
Dr. Zonca graduated from Wayne State University School of Medicine in 1995.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Stephen N. Zonca'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 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)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. Stephen N. Zonca
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. Stephen N. Zonca's NPI number?
Dr. Stephen N. Zonca's NPI number is 1255394482. It was assigned on April 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephen N. Zonca?
Dr. Stephen N. Zonca is a plastic and reconstructive surgery physician in Muskegon, Michigan. The primary specialty in the NPI Registry is Plastic and Reconstructive Surgery Physician (taxonomy code 2086S0122X).
Where does Dr. Stephen N. Zonca practice?
Dr. Zonca practices at 1316 Mercy Dr, Muskegon, MI 49444. Dr. Zonca's primary practice is Muskegon Surgical Associates in Muskegon, Michigan. Dmand AI also links Dr. Zonca to 1 group practice or clinic and 1 home health agency.
What is Dr. Stephen N. Zonca's office phone number?
The practice phone on file for Dr. Zonca is (231) 739-9461.
What is Dr. Stephen N. Zonca's medical license number?
Dr. Zonca holds Michigan license O65662.
Which hospitals is Dr. Stephen N. Zonca affiliated with?
Dr. Zonca is affiliated with Trinity Health Muskegon Hospital.
What medical group is Dr. Stephen N. Zonca part of?
Dr. Zonca is linked to Muskegon Surgical Associates.
Does Dr. Stephen N. Zonca accept Medicare?
Yes. CMS data shows Dr. Zonca billed Medicare for 544 services in 2024, and Dr. Zonca accepts Medicare assignment.
How many Medicare patients does Dr. Stephen N. Zonca see?
CMS counts 247 Medicare patients who saw Dr. Zonca in 2024, with an average age of 74.
What services does Dr. Stephen N. Zonca bill to Medicare?
In 2024, Dr. Zonca's most billed Medicare services were office visit, established patient (99213), surgery: skin and soft tissue (17003) and surgery: skin and soft tissue (17000).
Show 4 more questionsShow fewer questions
Where did Dr. Stephen N. Zonca go to medical school?
Dr. Zonca graduated from Wayne State University School of Medicine in 1995.
What drugs does Dr. Stephen N. Zonca prescribe most?
In 2024 Medicare Part D data, Dr. Zonca's most prescribed drugs by claims were Fluorouracil, Cephalexin and Hydrocodone-Acetaminophen.
Has Dr. Stephen N. Zonca received payments from drug or device companies?
CMS Open Payments shows $2,449 in general payments to Dr. Zonca from 19 companies from 2016 to 2025. The largest total came from Merz North America, Inc.
How long has Dr. Stephen N. Zonca been practicing?
Dr. Zonca graduated from medical school in 1995, 31 years ago.
Selling to plastic and reconstructive surgery practices?
See plastics and reconstructive surgery physicians in Michigan by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card