Mr Mark M Macelwee, MD - Medicare Internal Medicine in Phoenix, AZ

Mr Mark M Macelwee, MD is a medicare enrolled "Hospitalist" physician in Phoenix, Arizona. He graduated from medical school in 1995 and has 29 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice District Medical Group Inc and his current practice location is 2525 E Roosevelt St, Phoenix, Arizona. You can reach out to his office (for appointments etc.) via phone at (602) 344-1119.

Mr Mark M Macelwee is licensed to practice in Arizona (license number 26806) 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 1437133378.

Contact Information

Mr Mark M Macelwee, MD
2525 E Roosevelt St,
Phoenix, AZ 85008
(602) 344-1119
(602) 344-1112

Map and Direction




Physician's Profile

Full NameMr Mark M Macelwee
GenderMale
SpecialityInternal Medicine
Experience29 Years
Location2525 E Roosevelt St, Phoenix, Arizona
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:
  • Mr Mark M Macelwee graduated from medical school in 1995
  NPI Data:
  • NPI Number: 1437133378
  • Provider Enumeration Date: 12/05/2005
  • Last Update Date: 07/23/2018
  Medicare PECOS Information:
  • PECOS PAC ID: 4385609700
  • Enrollment ID: I20041124000886

Medical Identifiers

Medical identifiers for Mr Mark M Macelwee such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1437133378NPI-NPPES
455643MedicaidAZ
56488521MedicaidCO
P00172747OtherAZRAILROAD MEDICARE
86080015085259A966OtherAZTRIWEST

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208M00000XHospitalist DR40558 (Colorado)Secondary
208M00000XHospitalist 26806 (Arizona)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Valleywise Health Medical CenterPhoenix, AZHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
District Medical Group Inc7315086691356

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. Mr Mark M Macelwee allows following entities to bill medicare on his behalf.
Entity NameMaricopa County Special Health Care District
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073576740
PECOS PAC ID: 4688583651
Enrollment ID: O20031204000823
Entity NameDistrict Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1336472448
PECOS PAC ID: 7315086691
Enrollment ID: O20091125000583

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. Mr Mark M Macelwee 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
Mr Mark M Macelwee, MD
555 Prospect Ave,
Estes Park, CO 80517-6312

Ph: (970) 586-2200
Mr Mark M Macelwee, MD
2525 E Roosevelt St,
Phoenix, AZ 85008

Ph: (602) 344-1119

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.