Mark J Vellek, MD - Medicare Hematology in Las Vegas, NV

Mark J Vellek, MD is a medicare enrolled "Internal Medicine - Hematology & Oncology" physician in Las Vegas, Nevada. He went to University Of Minnesota Medical School and graduated in 1986 and has 38 years of diverse experience with area of expertise as Hematology. He is a member of the group practice Central Maine Medical Center, Murray-calloway County Public Hospital Corporation and his current practice location is 3131 La Canada St Ste 140, Las Vegas, Nevada. You can reach out to his office (for appointments etc.) via phone at (702) 933-9400.

Mark J Vellek is licensed to practice in Nevada (license number 20944) 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 1063409688.

Contact Information

Mark J Vellek, MD
3131 La Canada St Ste 140,
Las Vegas, NV 89169-2579
(702) 933-9400
(702) 933-9444

Map and Direction




Physician's Profile

Full NameMark J Vellek
GenderMale
SpecialityHematology
Experience38 Years
Location3131 La Canada St Ste 140, Las Vegas, Nevada
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 J Vellek attended and graduated from University Of Minnesota Medical School in 1986
  NPI Data:
  • NPI Number: 1063409688
  • Provider Enumeration Date: 09/29/2005
  • Last Update Date: 12/12/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 9335166776
  • Enrollment ID: I20230605002447

Medical Identifiers

Medical identifiers for Mark J Vellek such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1063409688NPI-NPPES
171205OtherHEALTHLINK
106095OtherBCBS OF MO
1210OtherGHP
203284625MedicaidMO
3604003OtherUNITED HEALTHCARE
F19081OtherMERCY HEALTH PLANS
65201A002OtherTRICARE
1063409688MedicaidNV
5132415OtherAETNA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RH0003XInternal Medicine - Hematology & Oncology C2194 (Kentucky)Secondary
207RH0003XInternal Medicine - Hematology & Oncology 20944 (Nevada)Primary
207RH0003XInternal Medicine - Hematology & Oncology R5H89 (Missouri)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Murray-calloway County HospitalMurray, KYHospital
Central Maine Medical CenterLewiston, MEHospital
Carson Tahoe Regional Medical CenterCarson city, NVHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Central Maine Medical Center2567379563347
Murray-calloway County Public Hospital Corporation084010329773

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 J Vellek allows following entities to bill medicare on his behalf.
Entity NameBridgton Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1154370153
PECOS PAC ID: 8123919099
Enrollment ID: O20040322000534
Entity NameCentral Maine Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1689653487
PECOS PAC ID: 2567379563
Enrollment ID: O20040324000441
Entity NameRumford Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1205991122
PECOS PAC ID: 3870583511
Enrollment ID: O20040514000890

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 J Vellek 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 J Vellek, MD
Po Box 98978,
Las Vegas, NV 89193-8978

Ph: (702) 216-3346
Mark J Vellek, MD
3131 La Canada St Ste 140,
Las Vegas, NV 89169-2579

Ph: (702) 933-9400

Reviews and Comments


Internal Medicine Doctors in Las Vegas, NV

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Ian Adrian Fanoga Frani, M.D.
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Sein Tun, DO
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Berge Jack Dadourian, M.D.
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Practice Location: 400 S Rampart Blvd, Suite 240, Las Vegas, NV 89145
Phone: 702-906-1100    Fax: 702-906-1110

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.