Dr. Robert Matthew Zielinski, MD
- Medicare services, 2024
- 940
- Medicare patients, 2024
- 258
- Part D claims, 2024
- 102
- Publications
- 1
- Hospital affiliations
- 2
- Practice address
- 2401 West Belvedere Avenue, Baltimore, MD 21215
- Practice phone
- Call (410) 601-9000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Zielinski'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. Robert Matthew Zielinski is an internist in Baltimore, Maryland
Dr. Zielinski practices at Sinai Hospital of Baltimore in Baltimore, Maryland, part of LifeBridge Health.
Dr. Zielinski's NPI, 1821617762, was assigned on April 10, 2020. Dr. Zielinski holds Maryland license D96758.
- NPI
- 1821617762NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7618393042
- NPI enumeration date
- April 10, 2020
- NPI status
- Active
- Practice phone
- (410) 601-9000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Robert Matthew Zielinski practices at Sinai Hospital of Baltimore in Baltimore, Maryland
Dr. Zielinski's primary practice is Sinai Hospital of Baltimore, at 2401 West Belvedere Avenue, Baltimore, MD 21215 in Baltimore City. The practice phone is (410) 601-9000.
- Sinai Hospital of Baltimore2401 West Belvedere Avenue, Baltimore, MD 21215 · Baltimore CityPhone(410) 601-9000
Source: Dmand AI Affiliation Data
Dr. Robert Matthew Zielinski is affiliated with 2 sites of care and 1 medical group
Dr. Zielinski's primary practice is Sinai Hospital of Baltimore in Baltimore, Maryland, part of LifeBridge Health. Dr. Zielinski is also affiliated with Levindale Hebrew Geriatric Center and Hospital. The medical group on file is Sinai Rehab Pain Medicine Associates.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Robert Matthew Zielinski's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zielinski practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sinai Hospital of Baltimore | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert Matthew Zielinski is one of 3,320 internists in Maryland
Internal medicine is Dr. Zielinski's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Zielinski is licensed in Maryland.
Specialties and state licenses
- Internal medicine, MarylandPrimary
Internists near Dr. Zielinski
Counts of internists 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. Robert Matthew Zielinski billed Medicare for 940 services in 2024
CMS data shows 940 Medicare services from Dr. Zielinski across 5 procedure codes in 2024, for 258 Medicare patients. Medicare paid $63,110 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Zielinski's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4142024: 940127%
Dr. Zielinski compared with the Maryland median for internists, 2024
- Dr. Zielinski
- Maryland median
- Medicare services
- 940vs 65643% above
- Medicare patients
- 258vs 251Close to median
- Part D claims
- 35vs 30989% below
Medians across 3,215 internists in Maryland with Dmand AI profiles that report each measure.
Dr. Zielinski'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. Zielinski and other internists in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert Matthew Zielinski treated 258 Medicare patients in 2024, average age 75
CMS counts 258 Medicare patients who saw Dr. Zielinski in 2024. The largest group is 65 to 74, with 87 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 37% are also on Medicaid. Their average risk score is 2.89, 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. Zielinski's median patient age at 73, with 54% women.
Dr. Zielinski's Medicare patients by age, 2024
Dr. Zielinski's Medicare patients by sex, 2024
- Women14456%
- Men11444%
Chronic conditions among Dr. Zielinski's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis57%
- Diabetes57%
- Chronic kidney disease53%
- Heart failure52%
- Mood disorders52%
- Ischemic heart disease49%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zielinski's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women54%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert Matthew Zielinski wrote 102 Medicare Part D claims in 2024
In 2024, Dr. Zielinski wrote 102 Medicare Part D claims for 40 patients. 87% of them were for generic drugs. CMS names the drug for 35 of them, across 3 drugs with 11 or more claims each, at $1,239 in total drug cost. In 2022, CMS named 81 claims across 6 drugs.
Dr. Zielinski's Part D claims by kind of drug, 2024
- Generic89 claims87%
- Brand-name and other13 claims13%
Dr. Zielinski's most prescribed drugs by claims, 2023
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. Zielinski's Part D claims, 2024
- Antibiotics11%11 of 102 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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 812023: 3557%
Drugs named by CMS: 3 in 2023, 6 in 2022.
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
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Dr. Robert Matthew Zielinski has 1 publication on record
Dmand AI links 1 paper to Dr. Zielinski in 2023. Dr. Zielinski's most frequent co-authors are Kelly Mercer Davidson, MD and Michael D. Williams, DO.
Dr. Zielinski's most frequent co-authors
Recent publications by Dr. Zielinski
See who Dr. Zielinski researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Zielinski works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Robert Matthew Zielinski received $914 in industry payments from 2023 to 2025
CMS Open Payments shows 39 general payments to Dr. Zielinski from 13 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $206.
General payments to Dr. Zielinski by program year, 2023 to 2025
Companies that paid Dr. Zielinski the most, 2023 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Robert Matthew Zielinski'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) |
| 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. Robert Matthew Zielinski
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. Robert Matthew Zielinski's NPI number?
Dr. Robert Matthew Zielinski's NPI number is 1821617762. It was assigned on April 10, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert Matthew Zielinski?
Dr. Robert Matthew Zielinski is an internist in Baltimore, Maryland. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Robert Matthew Zielinski practice?
Dr. Zielinski practices at 2401 West Belvedere Avenue, Baltimore, MD 21215. Dr. Zielinski's primary practice is Sinai Hospital of Baltimore in Baltimore, Maryland, part of LifeBridge Health.
What is Dr. Robert Matthew Zielinski's office phone number?
The practice phone on file for Dr. Zielinski is (410) 601-9000.
What is Dr. Robert Matthew Zielinski's medical license number?
Dr. Zielinski holds Maryland license D96758.
Which hospitals is Dr. Robert Matthew Zielinski affiliated with?
Dr. Zielinski practices at Sinai Hospital of Baltimore in Baltimore, Maryland. Dr. Zielinski is also affiliated with Levindale Hebrew Geriatric Center and Hospital.
What medical group is Dr. Robert Matthew Zielinski part of?
Dr. Zielinski is linked to Sinai Rehab Pain Medicine Associates.
Does Dr. Robert Matthew Zielinski accept Medicare?
Yes. CMS data shows Dr. Zielinski billed Medicare for 940 services in 2024.
How many Medicare patients does Dr. Robert Matthew Zielinski see?
CMS counts 258 Medicare patients who saw Dr. Zielinski in 2024, with an average age of 75.
What services does Dr. Robert Matthew Zielinski bill to Medicare?
In 2024, Dr. Zielinski's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99239) and hospital inpatient care (99233).
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What drugs does Dr. Robert Matthew Zielinski prescribe most?
In 2023 Medicare Part D data, Dr. Zielinski's most prescribed drugs by claims were Atorvastatin Calcium, Ventolin Hfa and Metformin HCl ER.
Has Dr. Robert Matthew Zielinski received payments from drug or device companies?
CMS Open Payments shows $914 in general payments to Dr. Zielinski from 13 companies from 2023 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Robert Matthew Zielinski been practicing?
Dr. Zielinski graduated from medical school in 2020, 6 years ago.
Does Dr. Robert Matthew Zielinski do research?
Dmand AI links 1 publication to Dr. Zielinski.
Who does Dr. Robert Matthew Zielinski publish with?
Dr. Zielinski's most frequent co-authors are Kelly Mercer Davidson, MD (1 shared paper) and Michael D. Williams, DO (1 shared paper).
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