Marcus Sikorski, NP
- Medicare patients, 2024
- 16
- Hospital affiliations
- 1
- Industry payments
- $564
- Medical group
- 1
- State license
- 1
- Practice address
- Elm and Carlton Streets, Buffalo, NY 14203
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Marcus Sikorski's professional email, personal email and mobile number
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Marcus Sikorski is a nurse practitioner in Los Angeles, California
Marcus Sikorski practices at Roswell Park Comprehensive Cancer Center in Buffalo, New York, part of State of New York.
Marcus Sikorski's NPI, 1700869575, was assigned on November 25, 2005. Marcus Sikorski graduated from State University of New York at Buffalo School of Medicine in 2000. Marcus Sikorski holds New York license F302898.
- NPI
- 1700869575NPI Registry (opens in a new tab)
- NPI enumeration date
- November 25, 2005
- NPI status
- Active
- 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)
Marcus Sikorski practices in Buffalo and Los Angeles
Marcus Sikorski's primary practice is Roswell Park Comprehensive Cancer Center, at Elm and Carlton Streets, Buffalo, NY 14203. The NPI Registry lists Marcus Sikorski's practice address as 344 S Hauser Blvd, Los Angeles, CA 90036.
- Roswell Park Comprehensive Cancer CenterPrimaryElm and Carlton Streets, Buffalo, NY 14203
- NPI Registry address344 S Hauser Blvd, Los Angeles, CA 90036 · Los Angeles County
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Marcus Sikorski is affiliated with 1 site of care and 1 medical group
Marcus Sikorski's primary practice is Roswell Park Comprehensive Cancer Center in Buffalo, New York, part of State of New York. The medical group on file is Roswell Park Comprehensive Cancer Center.
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 Marcus Sikorski's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Marcus Sikorski practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Roswell Park Comprehensive Cancer Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Marcus Sikorski is one of 5,983 nurse practitioners in California
Nurse practitioner is Marcus Sikorski's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Marcus Sikorski is licensed in New York.
Specialties and state licenses
- Nurse practitioner, New YorkPrimary
Nurse practitioners near Marcus Sikorski
Counts of nurse practitioners 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
Marcus Sikorski treated 16 Medicare patients in 2024, average age 72
CMS counts 16 Medicare patients who saw Marcus Sikorski in 2024. The largest group is 85 and over, with 0 patients. 75% of them have cancer, and 75% have high cholesterol. Their average risk score is 3.26, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Marcus Sikorski's median patient age at 15, with 100% women.
Marcus Sikorski's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Marcus Sikorski's Medicare patients, 2024
- Cancer75%
- High cholesterol75%
Share of Medicare patients with each condition. A patient can have several.
Marcus Sikorski's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 15
Patient panel by sex, all payers
- Women100%
- Men0%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Marcus Sikorski received $564 in industry payments in 2025
CMS Open Payments shows 5 general payments to Marcus Sikorski from 4 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Bristol-Myers Squibb Company paid the most, $159.
Companies that paid Marcus Sikorski the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Marcus Sikorski graduated from State University of New York at Buffalo School of Medicine
Marcus Sikorski graduated from State University of New York at Buffalo School of Medicine in 2000.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Marcus Sikorski'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| 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 patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (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 Marcus Sikorski
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Marcus Sikorski's NPI number?
Marcus Sikorski's NPI number is 1700869575. It was assigned on November 25, 2005, and it is active in the NPI Registry.
What does Marcus Sikorski specialize in?
Marcus Sikorski is a nurse practitioner in Los Angeles, California. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Marcus Sikorski practice?
Marcus Sikorski practices at Elm and Carlton Streets, Buffalo, NY 14203. Marcus Sikorski also practices at 344 S Hauser Blvd, Los Angeles, CA 90036. Marcus Sikorski's primary practice is Roswell Park Comprehensive Cancer Center in Buffalo, New York, part of State of New York.
What is Marcus Sikorski's medical license number?
Marcus Sikorski holds New York license F302898.
Which hospitals is Marcus Sikorski affiliated with?
Marcus Sikorski practices at Roswell Park Comprehensive Cancer Center in Buffalo, New York.
What medical group is Marcus Sikorski part of?
Marcus Sikorski is linked to Roswell Park Comprehensive Cancer Center.
How many Medicare patients does Marcus Sikorski see?
CMS counts 16 Medicare patients who saw Marcus Sikorski in 2024, with an average age of 72.
Where did Marcus Sikorski go to medical school?
Marcus Sikorski graduated from State University of New York at Buffalo School of Medicine in 2000.
Has Marcus Sikorski received payments from drug or device companies?
CMS Open Payments shows $564 in general payments to Marcus Sikorski from 4 companies from 2025 to 2025. The largest total came from Bristol-Myers Squibb Company.
How long has Marcus Sikorski been practicing?
Marcus Sikorski graduated from medical school in 2000, 26 years ago.
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