Mattie Guelinas, - Medicare Nurse Practitioner in Flagstaff, AZ

Mattie Guelinas, is a medicare enrolled "Family Medicine" physician in Flagstaff, Arizona. She graduated from medical school in 2022 and has 4 years of diverse experience with area of expertise as Nurse Practitioner. She is a member of the group practice Urgent Care Northern Colorado and her current practice location is 399 S Malpais Ln Ste 100, Flagstaff, Arizona. You can reach out to her office (for appointments etc.) via phone at (928) 286-8830.

Mattie Guelinas is licensed to practice in Arizona (license number 337790) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1538864954.

Contact Information

Mattie Guelinas,
399 S Malpais Ln Ste 100,
Flagstaff, AZ 86001-6269
(928) 286-8830
Not Available

Map and Direction




Physician's Profile

Full NameMattie Guelinas
GenderFemale
SpecialityNurse Practitioner
Experience4 Years
Location399 S Malpais Ln Ste 100, Flagstaff, Arizona
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Mattie Guelinas graduated from medical school in 2022
  NPI Data:
  • NPI Number: 1538864954
  • Provider Enumeration Date: 04/04/2023
  • Last Update Date: 08/13/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 4789027368
  • Enrollment ID: I20240212000288

Medical Identifiers

Medical identifiers for Mattie Guelinas such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1538864954NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 337790 (Arizona)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Urgent Care Northern Colorado509217678411

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. Mattie Guelinas allows following entities to bill medicare on her behalf.
Entity NameUrgent Care Northern Colorado
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1154025104
PECOS PAC ID: 5092176784
Enrollment ID: O20230727001766

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. Mattie Guelinas 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
Mattie Guelinas,
399 S Malpais Ln Ste 100,
Flagstaff, AZ 86001-6269

Ph: Not Available
Mattie Guelinas,
399 S Malpais Ln Ste 100,
Flagstaff, AZ 86001-6269

Ph: (928) 286-8830

Reviews and Comments


Family Medicine Doctors in Flagstaff, AZ

Kaitlyn Losey,
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Medicare: Accepting Medicare Assignments
Practice Location: 1200 N Beaver St, Flagstaff, AZ 86001
Phone: 928-773-2451    Fax: 928-214-2925
Charles Smith, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 107 E Oak Ave, Flagstaff, AZ 86001
Phone: 928-913-8800    Fax: 928-913-8801
Christine Ameduri, MD
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Medicare: Medicare Enrolled
Practice Location: 1110 E Route 66 Ste 100, Flagstaff, AZ 86001
Phone: 928-773-9695    Fax: 928-773-0208
Donna Nelson,
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Medicare: Not Enrolled in Medicare
Practice Location: South San Francisco And Dome Access, Bldg 41 Nau Campus, Flagstaff, AZ 86011
Phone: 928-523-6343    
Dr. Eric Henley, M.D.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 2920 N 4th St, Flagstaff, AZ 86004
Phone: 928-213-6100    Fax: 928-774-4808
Dr. Timothy John Partridge, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 824 S San Francisco St, Flagstaff, AZ 86011
Phone: 928-523-2131    
Dr. Jane Ellen Dill, M.D.
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 2920 N 4th St, Flagstaff, AZ 86004
Phone: 928-213-6100    Fax: 928-774-4808

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.