Mark Anthony Sitarik, MD - Medicare Hematology/oncology in Boulder, CO

Mark Anthony Sitarik, MD is a medicare enrolled "Internal Medicine - Hematology & Oncology" physician in Boulder, Colorado. He went to Hahneman Medical College Of The Pacific and graduated in 1982 and has 42 years of diverse experience with area of expertise as Hematology/oncology. He is a member of the group practice Rocky Mountain Cancer Centers Llp and his current practice location is 4715 Arapahoe Ave, Boulder, Colorado. You can reach out to his office (for appointments etc.) via phone at (303) 385-2000.

Mark Anthony Sitarik is licensed to practice in Colorado (license number 26965) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1346224664.

Contact Information

Mark Anthony Sitarik, MD
4715 Arapahoe Ave,
Boulder, CO 80303-1385
(303) 385-2000
(303) 444-1839

Map and Direction




Physician's Profile

Full NameMark Anthony Sitarik
GenderMale
SpecialityHematology/oncology
Experience42 Years
Location4715 Arapahoe Ave, Boulder, Colorado
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Mark Anthony Sitarik attended and graduated from Hahneman Medical College Of The Pacific in 1982
  NPI Data:
  • NPI Number: 1346224664
  • Provider Enumeration Date: 11/30/2005
  • Last Update Date: 07/15/2011
  Medicare PECOS Information:
  • PECOS PAC ID: 3274672472
  • Enrollment ID: I20091201000492

Medical Identifiers

Medical identifiers for Mark Anthony Sitarik such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1346224664NPI-NPPES
01269653MedicaidCO

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RH0003XInternal Medicine - Hematology & Oncology 26965 (Colorado)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Boulder Community HealthBoulder, COHospital
Centura Health-avista Adventist HospitalLouisville, COHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Rocky Mountain Cancer Centers Llp7012820533116

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Mark Anthony Sitarik allows following entities to bill medicare on his behalf.
Entity NameRocky Mountain Cancer Centers Llp
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1518941186
PECOS PAC ID: 7012820533
Enrollment ID: O20031111000267

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Mark Anthony Sitarik is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Mark Anthony Sitarik, MD
7951 E Maplewood Ave,
Greenwood Village, CO 80111-4723

Ph: (303) 930-7800
Mark Anthony Sitarik, MD
4715 Arapahoe Ave,
Boulder, CO 80303-1385

Ph: (303) 385-2000

Reviews and Comments


Internal Medicine Doctors in Boulder, CO

Ms. Martha E Montour, RN
Hematology & Oncology
Medicare: Not Enrolled in Medicare
Practice Location: 580 Mohawk Dr, Boulder, CO 80303
Phone: 303-440-2690    
Chester J Dreiman, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 2562 Briarwood Dr, Boulder, CO 80305
Phone: 303-501-2195    
Pamela G Ingram, MSN
Hematology & Oncology
Medicare: Not Enrolled in Medicare
Practice Location: 580 Mohawk Dr, Boulder, CO 80303
Phone: 303-554-5164    
Bradley D Fanestil, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 4801 Riverbend Rd Ste 120b, Boulder, CO 80301
Phone: 303-415-8615    Fax: 303-293-0628
Dr. Joseph Randall Lutt, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 1840 Folsom St Ste 105, Boulder, CO 80302
Phone: 720-494-4706    Fax: 720-494-4706
Dr. Amy O Campbell, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 2880 Folsom St Ste 100, Boulder, CO 80304
Phone: 303-327-7047    Fax: 303-443-7168
Wael F. Garas, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 5495 Arapahoe Ave Ste 100, Boulder, CO 80303
Phone: 303-415-4250    Fax: 303-440-9629

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.