Mark Thomas Holley, MD - Medicare Emergency Medicine in Denver, CO

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Mark Thomas Holley, MD is a medicare enrolled "Emergency Medicine - Emergency Medical Services" physician in Denver, Colorado. He went to University Of Colorado School Of Medicine, Denver and graduated in 1994 and has 30 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Usacs Community Emergency Services Of Colorado Inc. and his current practice location is 2227 West 35th Ave., Denver, Colorado. You can reach out to his office (for appointments etc.) via phone at (303) 455-0815.

Mark Thomas Holley is licensed to practice in Colorado (license number 36330) 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 1588673107.

Contact Information

Mark Thomas Holley, MD
2227 West 35th Ave.,
Denver, CO 80211
(303) 455-0815
Not Available

Map and Direction




Physician's Profile

Full NameMark Thomas Holley
GenderMale
SpecialityEmergency Medicine
Experience30 Years
Location2227 West 35th Ave., Denver, 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 Thomas Holley attended and graduated from University Of Colorado School Of Medicine, Denver in 1994
  NPI Data:
  • NPI Number: 1588673107
  • Provider Enumeration Date: 08/05/2006
  • Last Update Date: 04/30/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 9830105782
  • Enrollment ID: I20060301000547

Medical Identifiers

Medical identifiers for Mark Thomas Holley such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1588673107NPI-NPPES
01363308MedicaidCO

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207PE0004XEmergency Medicine - Emergency Medical Services 36330 (Colorado)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Littleton Adventist Hospital, Centura HealthLittleton, COHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Usacs Community Emergency Services Of Colorado Inc.2466711536156

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 Thomas Holley allows following entities to bill medicare on his behalf.
Entity NameNational Jewish Health
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1326015777
PECOS PAC ID: 4587577028
Enrollment ID: O20031110000757
Entity NameUsacs Of Colorado Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760415871
PECOS PAC ID: 4981507571
Enrollment ID: O20040130000439
Entity NameEmergency Service Physicians Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1326097668
PECOS PAC ID: 1557255882
Enrollment ID: O20040209001037
Entity NameUsacs Community Emergency Services Of Colorado Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1053824979
PECOS PAC ID: 2466711536
Enrollment ID: O20180117002329

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 Thomas Holley 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 Thomas Holley, MD
2227 West 35th Ave.,
Denver, CO 80211

Ph: (303) 455-0815		Mark Thomas Holley, MD
2227 West 35th Ave.,
Denver, CO 80211

Ph: (303) 455-0815

Reviews and Comments


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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.