Mark Dziemianowicz, MD
Radiation Oncology Physician · Greeley, CO
Mark Dziemianowicz, MD is a radiation oncology physician with a practice address in Greeley, Colorado, and NPI 1154776029, issued on Apr 28, 2016. Check the license (Colorado DR0072435, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mark Dziemianowicz
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License numbers
- DR0072435 CO
13549A WY
Self-reported in NPPES; status is on the state search - Practice location
- 1801 16TH St, Greeley, CO 80631
- Phone
- (970) 810-3894
- Enumerated
- Apr 28, 2016
- Record last updated
- Feb 10, 2025
- Fax
- (970) 810-3897
- Medicare enrollment
- Enrolled (PECOS I20240405002096); accepts Medicare assignment
- Medical or professional school
- Temple University School Of Medicine, 2016
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 111 in Colorado → Look up another NPI →
Also registered at 1801 16TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Costa AlimonosInternal Medicine Physician1235670712
- Rodger Anders, PA-CPhysician Assistant1710956917
- Renee Anderson, CRNACertified Registered Nurse Anesthetist1457339848
- Adrien Arling, PA-CSurgical Physician Assistant1255907382
- Sydney Aronson, MSPAS, PA-CSurgical Physician Assistant1376000653
- Ronald Baars, PHARMDPharmacist1649252867
Verify Mark Dziemianowicz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license DR0072435Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% fewer Medicare Part D claims than the average radiation oncology physician in 2024
121 Medicare Part D claims for 60 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. 16 claims were for opioids.
Most prescribed
- Tamsulosin Hcl38 claims
- Hydrocodone-Acetaminophen12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 97.6 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $167.76
4 payments; by number, the most common kind was food and beverage; the largest payer was Elekta, Inc. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Banner Hospital Based Physicians Colorado LLCGreeley, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Dziemianowicz among 111 radiation oncology physician records in Colorado
Mark Dziemianowicz, MD is one of 111 radiation oncology physician records with a practice address in Colorado. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 86% of them.
- NPI issued2016 · 86% of these records are older, 9% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 79% of these records are
- Graduated2016 · median 2007 among the 88 with a school on file
- Record last updated2025 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in Colorado
There are 111 radiation oncology physician records in Colorado.
All 111 in Colorado → Every provider in Greeley → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Christina Gamboa, MDGreeley, CO 806311144563370
- Laurie Gaspar, MDGreeley, CO 806311073620811
- Suraj Singh, MDGreely, CO 806311962504704
- Benjamin Willen, MDGreeley, CO 806311437643905
- Eric AndersonLoveland, CO 805381659722353
- Christine Lauro, M.D.Loveland, CO 805381235366758
- Sriram Venigalla, MDLoveland, CO 805381528478724
- Matthew Jackson, M.D.Fort Collins, CO 805281821359795
Common questions
What is Mark Dziemianowicz, MD's NPI number?
Mark Dziemianowicz, MD's National Provider Identifier (NPI) is 1154776029, issued on Apr 28, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Mark Dziemianowicz, MD located?
The NPPES record lists a practice address at 1801 16TH St, Greeley, CO, 80631. Phone: (970) 810-3894. Providers update this record themselves, so call before visiting.
How can I verify Mark Dziemianowicz, MD's license?
NPPES lists Colorado license number DR0072435, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark Dziemianowicz, MD prescribe under Medicare Part D?
In 2024, Mark Dziemianowicz, MD had 121 Medicare Part D claims for 60 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is Mark Dziemianowicz, MD's MIPS final score?
The 2023 MIPS final score is 97.6 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.