Mark Stephen Walmer, MD - Medicare Internal Medicine in Chandler, AZ

Mark Stephen Walmer, MD is a medicare enrolled "Internal Medicine" physician in Chandler, Arizona. He went to Medical University Of South Carolina College Of Medicine and graduated in 1984 and has 40 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice East Valley Internal Medicine Pc and his current practice location is 655 S Dobson Rd, A201, Chandler, Arizona. You can reach out to his office (for appointments etc.) via phone at (480) 821-3821.

Mark Stephen Walmer is licensed to practice in Arizona (license number 15974) 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 1629166053.

Contact Information

Mark Stephen Walmer, MD
655 S Dobson Rd, A201,
Chandler, AZ 85224-5669
(480) 821-3821
(186) 677-7239

Map and Direction




Physician's Profile

Full NameMark Stephen Walmer
GenderMale
SpecialityInternal Medicine
Experience40 Years
Location655 S Dobson Rd, Chandler, 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:
  • Mark Stephen Walmer attended and graduated from Medical University Of South Carolina College Of Medicine in 1984
  NPI Data:
  • NPI Number: 1629166053
  • Provider Enumeration Date: 10/11/2006
  • Last Update Date: 09/16/2011
  Medicare PECOS Information:
  • PECOS PAC ID: 4486641347
  • Enrollment ID: I20101020000282

Medical Identifiers

Medical identifiers for Mark Stephen Walmer such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1629166053NPI-NPPES
Z62340OtherAZMEDICARE Z62340
274639MedicaidAZ

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 15974 (Arizona)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
East Valley Internal Medicine Pc64068433583

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 Stephen Walmer allows following entities to bill medicare on his behalf.
Entity NameEast Valley Internal Medicine Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1104907039
PECOS PAC ID: 6406843358
Enrollment ID: O20040430000656

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 Stephen Walmer 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 Stephen Walmer, MD
655 S Dobson Rd, A201,
Chandler, AZ 85224-5669

Ph: (480) 821-3821
Mark Stephen Walmer, MD
655 S Dobson Rd, A201,
Chandler, AZ 85224-5669

Ph: (480) 821-3821

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.