Mary Elizabeth Iiams, CRNA - Medicare Certified Registered Nurse Anesthetist (crna) in Denison, TX

Mary Elizabeth Iiams, CRNA is a medicare enrolled "Nurse Anesthetist, Certified Registered" in Denison, Texas. She graduated from nursing school in 2025 and has 1 years of diverse experience with area of expertise as Certified Registered Nurse Anesthetist (crna). She is a member of the group practice Emergenchealth Pllc and her current practice location is 5016 N Hwy 75, Denison, Texas. You can reach out to her office (for appointments etc.) via phone at (903) 416-4000.

Mary Elizabeth Iiams is licensed to practice in Texas (license number 151689) 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 1881565901.

Contact Information

Mary Elizabeth Iiams, CRNA
5016 N Hwy 75,
Denison, TX 75020
(903) 416-4000
Not Available

Map and Direction




Provider's Profile

Full NameMary Elizabeth Iiams
GenderFemale
SpecialityCertified Registered Nurse Anesthetist (crna)
Experience1 Years
Location5016 N Hwy 75, Denison, Texas
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:
  • Mary Elizabeth Iiams graduated from nursing school in 2025
  NPI Data:
  • NPI Number: 1881565901
  • Provider Enumeration Date: 09/12/2025
  • Last Update Date: 08/24/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 9032602107
  • Enrollment ID: I20251205003342

Medical Identifiers

Medical identifiers for Mary Elizabeth Iiams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1881565901NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
367500000XNurse Anesthetist, Certified Registered 151689 (Texas)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Texoma Medical CenterDenison, TXHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Emergenchealth Pllc13556066411037

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. Mary Elizabeth Iiams allows following entities to bill medicare on her behalf.
Entity NameEmergenchealth PLLC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1467970897
PECOS PAC ID: 1355606641
Enrollment ID: O20180608000439

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. Mary Elizabeth Iiams 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
Mary Elizabeth Iiams, CRNA
5649 Bois D Arc Rd Apt 5107,
Mckinney, TX 75071-5882

Ph: Not Available
Mary Elizabeth Iiams, CRNA
5016 N Hwy 75,
Denison, TX 75020

Ph: (903) 416-4000

Reviews and Comments


Nurse Anesthetist, Certified Registered Nurses in Denison, TX

Tyler Stewart,
Nurse Anesthetist - CR
Medicare: Accepting Medicare Assignments
Practice Location: 5016 N Highway 75, Denison, TX 75020
Phone: 903-416-4000    
Mrs. April Deann Brownlee, CRNA
Nurse Anesthetist - CR
Medicare: Accepting Medicare Assignments
Practice Location: 5016 Us Hwy 75, Denison, TX 75020
Phone: 903-416-4000    
Mr. Houston Howard Hawkins Iii, C.R.N.A.
Nurse Anesthetist - CR
Medicare: Accepting Medicare Assignments
Practice Location: 1000 Memorial Dr, Denison, TX 75020
Phone: 903-293-5118    
Dr. Megan Cori Chandler, CRNA
Nurse Anesthetist - CR
Medicare: Accepting Medicare Assignments
Practice Location: 5016 Us Hwy 75, Denison, TX 75020
Phone: 903-416-4000    
Natalie Gura,
Nurse Anesthetist - CR
Medicare: Accepting Medicare Assignments
Practice Location: 1024 W Shepherd St, Denison, TX 75020
Phone: 719-580-9312    
Alaina Moreno, APRN
Nurse Anesthetist - CR
Medicare: Accepting Medicare Assignments
Practice Location: 5016 S Us Highway 75, Denison, TX 75020
Phone: 903-416-4000    
Celeste Gasiewicz, CRNA
Nurse Anesthetist - CR
Medicare: Accepting Medicare Assignments
Practice Location: 5016 Us Hwy 75, Denison, TX 75020
Phone: 903-416-4000    

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.