Dr. Marek Belz, MD
- Medicare services, 2021
- 109
- Part D claims, 2024
- 373
- Hospital affiliations
- 2
- Industry payments
- $1,023
- Medical groups
- 4
- Practice address
- 230 East Ridgewood Ave, Paramus, NJ 07652
- Practice phone
- Call (201) 967-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Belz's professional email, personal email and mobile number
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Dr. Marek Belz is a psychiatrist in Paramus, New Jersey
Dr. Belz practices at Bergen New Bridge Medical Center in Paramus, New Jersey, part of Bergen County, New Jersey.
Dr. Belz's NPI, 1073732699, was assigned on April 24, 2007. Dr. Belz graduated from University of Medical Science Poznan in 2000. Dr. Belz holds New Jersey license 25MA09259100.
- NPI
- 1073732699NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0446492631
- NPI enumeration date
- April 24, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (201) 967-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Marek Belz practices at Bergen New Bridge Medical Center in Paramus, New Jersey
Dr. Belz's primary practice is Bergen New Bridge Medical Center, at 230 East Ridgewood Ave, Paramus, NJ 07652 in Bergen County. The practice phone is (201) 967-4000.
- Bergen New Bridge Medical Center230 East Ridgewood Ave, Paramus, NJ 07652 · Bergen CountyPhone(201) 967-4000
Source: Dmand AI Affiliation Data
Dr. Marek Belz is affiliated with 3 sites of care and 4 medical groups
Dr. Belz's primary practice is Bergen New Bridge Medical Center in Paramus, New Jersey, part of Bergen County, New Jersey. Dr. Belz is also affiliated with Summit Oaks Hospital. The medical group on file is St. Joseph's Health Medical Group. Dmand AI also links Dr. Belz to 3 more medical groups and 1 physician office, 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. Marek Belz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Belz practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Bergen New Bridge 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
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Dr. Marek Belz is one of 1,216 psychiatrists in New Jersey
Psychiatry is Dr. Belz's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Belz is board certified in addiction psychiatry by the American Board of Psychiatry and Neurology. Dr. Belz is licensed in New Jersey.
Specialties and state licenses
- Psychiatry, New JerseyPrimary
Psychiatrists near Dr. Belz
Counts of psychiatrists 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. Marek Belz billed Medicare for 109 services in 2021
CMS data shows 109 Medicare services from Dr. Belz across 3 procedure codes in 2021. Medicare paid $10,034 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Belz's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Tests and treatments
- 2020: 122021: 55358%
- Office and hospital visits
- 2020: 1812021: 5470%
Dr. Belz compared with the New Jersey median for psychiatrists, 2021
- Dr. Belz
- New Jersey median
- Medicare services
- 109vs 18441% below
- Part D claims
- 276vs 17558% above
Medians across 1,365 psychiatrists in New Jersey with Dmand AI profiles that report each measure.
Dr. Belz's most billed Medicare procedure codes, 2021
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. Marek Belz's patients have a median age of 40
Across all payers, Dmand AI patient panel data puts Dr. Belz's median patient age at 40, with 42% women.
Dr. Belz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 40
Patient panel by sex, all payers
- Women42%
- Men57%
Source: Dmand AI Patient Panel Data
Dr. Marek Belz wrote 373 Medicare Part D claims in 2024
In 2024, Dr. Belz wrote 373 Medicare Part D claims for 30 patients. 91% of them were for generic drugs. CMS names the drug for 276 of them, across 13 drugs with 11 or more claims each, at $38,488 in total drug cost. In 2023, CMS named 88 claims across 5 drugs.
Dr. Belz's Part D claims by kind of drug, 2024
- Generic341 claims91%
- Brand-name32 claims9%
Dr. Belz'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. Belz's Part D claims, 2024
- Antipsychotics, patients 65 and over3%12 of 373 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: 882024: 276214%
Drugs named by CMS: 13 in 2024, 5 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. Marek Belz takes part in Medicare
Dr. Belz 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. Marek Belz received $1,023 in industry payments from 2016 to 2025
CMS Open Payments shows 51 general payments to Dr. Belz from 11 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Braeburn Inc. paid the most, $313.
General payments to Dr. Belz by program year, 2016 to 2025
Companies that paid Dr. Belz 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. Marek Belz graduated from University of Medical Science Poznan
Dr. Belz graduated from University of Medical Science Poznan in 2000.
- Medical school
- Board certified in addiction psychiatry
Source: Dmand AI Professional Profile Data
Sources for Dr. Marek Belz'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 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) |
| 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. Marek Belz
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. Marek Belz's NPI number?
Dr. Marek Belz's NPI number is 1073732699. It was assigned on April 24, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Marek Belz?
Dr. Marek Belz is a psychiatrist in Paramus, New Jersey. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Marek Belz practice?
Dr. Belz practices at 230 East Ridgewood Ave, Paramus, NJ 07652. Dr. Belz's primary practice is Bergen New Bridge Medical Center in Paramus, New Jersey, part of Bergen County, New Jersey. Dmand AI also links Dr. Belz to 3 medical groups and 1 physician office.
What is Dr. Marek Belz's office phone number?
The practice phone on file for Dr. Belz is (201) 967-4000.
What is Dr. Marek Belz's medical license number?
Dr. Belz holds New Jersey license 25MA09259100.
Which hospitals is Dr. Marek Belz affiliated with?
Dr. Belz practices at Bergen New Bridge Medical Center in Paramus, New Jersey. Dr. Belz is also affiliated with Summit Oaks Hospital.
What medical group is Dr. Marek Belz part of?
Dr. Belz is linked to St. Joseph's Health Medical Group. Dmand AI links Dr. Belz to 3 more medical groups.
Does Dr. Marek Belz accept Medicare?
Yes. CMS data shows Dr. Belz billed Medicare for 109 services in 2021, and Dr. Belz accepts Medicare assignment.
Is Dr. Marek Belz board certified?
Yes. Dr. Belz is board certified in addiction psychiatry by the American Board of Psychiatry and Neurology.
What services does Dr. Marek Belz bill to Medicare?
In 2021, Dr. Belz's most billed Medicare services were psychiatric service (90792), hospital inpatient care (99231) and hospital inpatient care (99232).
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Where did Dr. Marek Belz go to medical school?
Dr. Belz graduated from University of Medical Science Poznan in 2000.
What drugs does Dr. Marek Belz prescribe most?
In 2024 Medicare Part D data, Dr. Belz's most prescribed drugs by claims were Quetiapine Fumarate, Sertraline HCl and Mirtazapine.
Has Dr. Marek Belz received payments from drug or device companies?
CMS Open Payments shows $1,023 in general payments to Dr. Belz from 11 companies from 2016 to 2025. The largest total came from Braeburn Inc.
How long has Dr. Marek Belz been practicing?
Dr. Belz graduated from medical school in 2000, 26 years ago.
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