Mr Ryan Robert Mcwilliams, MD - Medicare Gastroenterology in Greeley, CO

Mr Ryan Robert Mcwilliams, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Greeley, Colorado. He went to University Of Colorado School Of Medicine, Denver and graduated in 2008 and has 16 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Portercare Adventist Health System and his current practice location is 2010 16th St, Ste A, Greeley, Colorado. You can reach out to his office (for appointments etc.) via phone at (970) 378-4475.

Mr Ryan Robert Mcwilliams is licensed to practice in Colorado (license number 51550) 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 1326214727.

Contact Information

Mr Ryan Robert Mcwilliams, MD
2010 16th St, Ste A,
Greeley, CO 80631
(970) 378-4475
Not Available

Map and Direction




Physician's Profile

Full NameMr Ryan Robert Mcwilliams
GenderMale
SpecialityGastroenterology
Experience16 Years
Location2010 16th St, Greeley, Colorado
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 Ryan Robert Mcwilliams attended and graduated from University Of Colorado School Of Medicine, Denver in 2008
  NPI Data:
  • NPI Number: 1326214727
  • Provider Enumeration Date: 05/06/2008
  • Last Update Date: 04/26/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 9830323476
  • Enrollment ID: I20140627000922

Medical Identifiers

Medical identifiers for Mr Ryan Robert Mcwilliams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1326214727NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine DR.0051550 (Colorado)Secondary
390200000XStudent In An Organized Health Care Education/training Program (* (Not Available))Secondary
207RG0100XInternal Medicine - Gastroenterology 51550 (Colorado)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Parker Adventist HospitalParker, COHospital
Littleton Adventist Hospital, Centura HealthLittleton, COHospital
Centura Health-porter Adventist HospitalDenver, COHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Portercare Adventist Health System0941110886547

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 Ryan Robert Mcwilliams allows following entities to bill medicare on his behalf.
Entity NamePeak Gastroenterology Associates
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023112117
PECOS PAC ID: 2961484365
Enrollment ID: O20040601000848
Entity NamePortercare Adventist Health System
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760761928
PECOS PAC ID: 0941110886
Enrollment ID: O20090115000327

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 Ryan Robert Mcwilliams 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 Ryan Robert Mcwilliams, MD
University Of Colorado School Of Medicine, 4200 East 9th Ave.,
Denver, CO 80262-0001

Ph: (303) 315-7424
Mr Ryan Robert Mcwilliams, MD
2010 16th St, Ste A,
Greeley, CO 80631

Ph: (970) 378-4475

Reviews and Comments


Internal Medicine Doctors in Greeley, CO

Dr. John Paul Berger, D.O.
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Medicare: Accepting Medicare Assignments
Practice Location: 6767 29th St Fl 2, Greeley, CO 80634
Phone: 970-624-2414    Fax: 970-490-4155
Dr. Sheldon Gregory Stadnyk, M.D.
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Medicare: Not Enrolled in Medicare
Practice Location: 1801 16th St, Greeley, CO 80631
Phone: 970-350-6002    
Dr. Veronika Panah, M.D.
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Practice Location: 2010 16th St Ste A, Greeley, CO 80631
Phone: 970-810-4475    
Dr. Steven O Kading, MD
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Medicare: Not Enrolled in Medicare
Practice Location: 1900 16th St, Greeley, CO 80631
Phone: 970-350-2740    Fax: 970-352-3719
Dr. Brian J Daily, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 6767 29th St, Greeley, CO 80634
Phone: 970-652-2000    
Dr. Bryan Paul Mcvay, D.O.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 6767 29th St Fl 2, Greeley, CO 80634
Phone: 970-224-9102    
Dr. Jimmy Giang, D.O.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 8225 W 20th St, Greeley, CO 80634
Phone: 970-378-1414    

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).

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