Dr Mark Stuart Simmons, MD - Medicare Internal Medicine in Tuscon, AZ

Dr Mark Stuart Simmons, MD is a medicare enrolled "Internal Medicine" physician in Tuscon, Arizona. He went to University Of Kansas School Of Med (kc/wich/sal) and graduated in 1992 and has 32 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Poudre Valley Medical Group Llc and his current practice location is 3870 W. River Rd, #126, Tuscon, Arizona. You can reach out to his office (for appointments etc.) via phone at (520) 219-6616.

Dr Mark Stuart Simmons is licensed to practice in Colorado (license number 37923) 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 1811092760.

Contact Information

Dr Mark Stuart Simmons, MD
3870 W. River Rd, #126,
Tuscon, AZ 85741
(520) 219-6616
(970) 266-3660

Map and Direction




Physician's Profile

Full NameDr Mark Stuart Simmons
GenderMale
SpecialityInternal Medicine
Experience32 Years
Location3870 W. River Rd, Tuscon, 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:
  • Dr Mark Stuart Simmons attended and graduated from University Of Kansas School Of Med (kc/wich/sal) in 1992
  NPI Data:
  • NPI Number: 1811092760
  • Provider Enumeration Date: 09/14/2006
  • Last Update Date: 09/26/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 9830164144
  • Enrollment ID: I20110216001146

Medical Identifiers

Medical identifiers for Dr Mark Stuart Simmons such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1811092760NPI-NPPES
81353871MedicaidCO
110198245OtherCORR MEDICARE PIN

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 37923 (Colorado)Primary
208000000XPediatrics 37923 (Colorado)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Poudre Valley HospitalFort collins, COHospital
Medical Center Of The RockiesLoveland, COHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Poudre Valley Medical Group Llc96382085491607

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. Dr Mark Stuart Simmons allows following entities to bill medicare on his behalf.
Entity NamePoudre Valley Medical Group Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1366763260
PECOS PAC ID: 9638208549
Enrollment ID: O20100602000122

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. Dr Mark Stuart Simmons 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
Dr Mark Stuart Simmons, MD
6531 W. Antler Bend Pl,
Marana, AZ 85658

Ph: (970) 213-8123
Dr Mark Stuart Simmons, MD
3870 W. River Rd, #126,
Tuscon, AZ 85741

Ph: (520) 219-6616

Reviews and Comments


Internal Medicine Doctors in Tuscon, AZ

Saif Mashaqi, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1625 N. Campbell Ave, Center For Sleep Disorders, Tuscon, AZ 85719
Phone: 520-694-4647    Fax: 520-694-2515
Danielle Demontigny Avila, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3838 N. Campbell Ave, Building 2, Tuscon, AZ 85719
Phone: 520-694-4000    Fax: 520-874-7042
Dr. Elly Varma, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1501 N Campbell Avenue Com Room 6336, Department Of Medicine, Tuscon, AZ 85724
Phone: 520-626-2761    

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.