J Am Soc Echocardiogr
Back PainCOVID-19 VaccinesDrug-Related Side Effects and Adverse Reactions
Dr. Gregory Tadeusz Marecki, MD
NPI1881129856
- Medicare services, 2021
- 109
- Part D claims, 2024
- 99
- Publications
- 2
- Hospital affiliations
- 1
- Industry payments
- $8,749
- Practice address
- 550 First Avenue, New York, NY 10016
- Practice phone
- Call (212) 263-7300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Marecki'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. Gregory Tadeusz Marecki is a hospitalist in New York, New York
Dr. Marecki practices at Tisch Hospital in New York, New York, part of NYU.
Dr. Marecki's NPI, 1881129856, was assigned on April 26, 2017. Dr. Marecki holds New York license 304273.
NPI and contact details
- NPI
- 1881129856NPI Registry (opens in a new tab)
- NPI enumeration date
- April 26, 2017
- NPI status
- Active
- Practice phone
- (212) 263-7300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregory Tadeusz Marecki practices at Tisch Hospital in New York, New York
Dr. Marecki's primary practice is Tisch Hospital, at 550 First Avenue, New York, NY 10016 in New York County. The practice phone is (212) 263-7300.
- Tisch Hospital550 First Avenue, New York, NY 10016 · New York CountyPhone(212) 263-7300
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregory Tadeusz Marecki is affiliated with 1 site of care and 1 medical group
Dr. Marecki's primary practice is Tisch Hospital in New York, New York, part of NYU. The medical group on file is NYU Langone Orthopedic Surgery Associates.
Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Gregory Tadeusz Marecki's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marecki practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Tisch Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every hospital where Dr. Marecki practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across NYU and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Gregory Tadeusz Marecki is one of 1,796 hospitalists in New York
Hospitalist is Dr. Marecki's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Marecki is licensed in New York.
Specialties and state licenses
- Hospitalist, New YorkPrimary
Hospitalists near Dr. Marecki
Counts of hospitalists 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. Gregory Tadeusz Marecki billed Medicare for 109 services in 2021
CMS data shows 109 Medicare services from Dr. Marecki across 3 procedure codes in 2021. Medicare paid $7,498 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2021109
Paid by Medicare$7,498
Procedure codes3
Dr. Marecki compared with the New York median for hospitalists, 2021
- Dr. Marecki
- New York median
- Medicare services
- 109vs 38872% below
- Part D claims
- 14vs 5575% below
Medians across 1,696 hospitalists in New York with Dmand AI profiles that report each measure.
Dr. Marecki'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.
Need commercial claims for Dr. Marecki?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Marecki and other hospitalists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory Tadeusz Marecki wrote 99 Medicare Part D claims in 2024
In 2024, Dr. Marecki wrote 99 Medicare Part D claims for 16 patients. 65% of them were for generic drugs. CMS names the drug for 14 of them, across 1 drug with 11 or more claims each, at $14,949 in total drug cost. In 2019, CMS named 13 claims across 1 drug.
Part D claims, 202499
Drugs named by CMS1
Total drug cost$14,949
Part D patients16
Dr. Marecki's Part D claims by kind of drug, 2024
- Generic64 claims65%
- Brand-name35 claims35%
Dr. Marecki'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.
Part D claims for drugs CMS names, 2019 to 2024
- 2019
- 2024
- Claims for drugs CMS names
- 2019: 132024: 148%
Drugs named by CMS: 1 in 2024, 1 in 2019.
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
For MedTech and pharma teams
Find hospitalists like Dr. Marecki by procedure volume and prescribing
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Gregory Tadeusz Marecki has 2 publications on record
Dmand AI links 2 papers to Dr. Marecki, published from 2021 to 2023. Dr. Marecki's most frequent co-authors are Mays T. Ali, MD, Reza Arsanjani, MD and Timothy Lee Irwin, MD.
Papers2
Years published2021 to 2023
Dr. Marecki's most frequent co-authors
Recent publications by Dr. Marecki
AtherosclerosisInterleukin-4Macrophages
See who Dr. Marecki researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Marecki works with, so you can find a warm path to the right hospitalists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Gregory Tadeusz Marecki received $8,749 in industry payments from 2021 to 2025
CMS Open Payments shows 93 general payments to Dr. Marecki from 14 drug and device companies from 2021 to 2025. Travel and lodging make up the largest share, 54% of the total. Abbott Laboratories paid the most, $6,113.
General payments to Dr. Marecki by program year, 2021 to 2025
General payments to Dr. Marecki by kind, 2021 to 2025
$8.7Kin total
- Travel and lodging$4,76454%
- Food and beverage$3,98646%
Companies that paid Dr. Marecki the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Gregory Tadeusz Marecki'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand 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 |
| 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Gregory Tadeusz Marecki
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. Gregory Tadeusz Marecki's NPI number?
Dr. Gregory Tadeusz Marecki's NPI number is 1881129856. It was assigned on April 26, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory Tadeusz Marecki?
Dr. Gregory Tadeusz Marecki is a hospitalist in New York, New York. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Gregory Tadeusz Marecki practice?
Dr. Marecki practices at 550 First Avenue, New York, NY 10016. Dr. Marecki's primary practice is Tisch Hospital in New York, New York, part of NYU.
What is Dr. Gregory Tadeusz Marecki's office phone number?
The practice phone on file for Dr. Marecki is (212) 263-7300.
What is Dr. Gregory Tadeusz Marecki's medical license number?
Dr. Marecki holds New York license 304273.
Which hospitals is Dr. Gregory Tadeusz Marecki affiliated with?
Dr. Marecki practices at Tisch Hospital in New York, New York.
What medical group is Dr. Gregory Tadeusz Marecki part of?
Dr. Marecki is linked to NYU Langone Orthopedic Surgery Associates.
Does Dr. Gregory Tadeusz Marecki accept Medicare?
Yes. CMS data shows Dr. Marecki billed Medicare for 109 services in 2021.
What services does Dr. Gregory Tadeusz Marecki bill to Medicare?
In 2021, Dr. Marecki's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99238) and hospital inpatient care (99221).
What drugs does Dr. Gregory Tadeusz Marecki prescribe most?
In 2024 Medicare Part D data, Dr. Marecki's most prescribed drugs by claims were Entresto.
Show 4 more questionsShow fewer questions
Has Dr. Gregory Tadeusz Marecki received payments from drug or device companies?
CMS Open Payments shows $8,749 in general payments to Dr. Marecki from 14 companies from 2021 to 2025. The largest total came from Abbott Laboratories.
How long has Dr. Gregory Tadeusz Marecki been practicing?
Dr. Marecki's NPI was assigned in 2017.
Does Dr. Gregory Tadeusz Marecki do research?
Dmand AI links 2 publications to Dr. Marecki, published from 2021 to 2023.
Who does Dr. Gregory Tadeusz Marecki publish with?
Dr. Marecki's most frequent co-authors are Mays T. Ali, MD (1 shared paper), Reza Arsanjani, MD (1 shared paper) and Timothy Lee Irwin, MD (1 shared paper).
Selling to hospitalist practices?
See hospitalists in New York 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