Allison Margaret O'leary Williams, MSN, APRN, NP-C - Medicare Nurse Practitioner in Greeley, CO

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Allison Margaret O'leary Williams, MSN, APRN, NP-C is a medicare enrolled "Nurse Practitioner" in Greeley, Colorado. Her current practice location is 1010 A St, Greeley, Colorado. You can reach out to her office (for appointments etc.) via phone at (970) 313-0400.

Allison Margaret O'leary Williams is licensed to practice in Colorado (license number 994420) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1902376007.

Contact Information

Allison Margaret O'leary Williams, MSN, APRN, NP-C
1010 A St,
Greeley, CO 80631-2021
(970) 313-0400
(970) 313-0404

Map and Direction




Provider's Profile

Full NameAllison Margaret O'leary Williams
GenderFemale
SpecialityNurse Practitioner
Location1010 A St, Greeley, Colorado
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1902376007
  • Provider Enumeration Date: 11/30/2018
  • Last Update Date: 06/30/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 9638417652
  • Enrollment ID: I20190215002059

Medical Identifiers

Medical identifiers for Allison Margaret O'leary Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1902376007NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363L00000XNurse Practitioner 994420 (Colorado)Primary

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. Allison Margaret O'leary Williams allows following entities to bill medicare on her behalf.
Entity NameSunrise Community Health
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1902005382
PECOS PAC ID: 0648164780
Enrollment ID: O20040329001864

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. Allison Margaret O'leary Williams 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
Allison Margaret O'leary Williams, MSN, APRN, NP-C
2930 11th Ave,
Evans, CO 80620-1011

Ph: (970) 350-4606		Allison Margaret O'leary Williams, MSN, APRN, NP-C
1010 A St,
Greeley, CO 80631-2021

Ph: (970) 313-0400

Reviews and Comments


Nurse Practitioner Nurses in Greeley, CO

Brittany Grounds, AGACNP - BC
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Medicare: Not Enrolled in Medicare
Practice Location: 6810 10th St, Greeley, CO 80634
Phone: 970-425-6770    
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Practice Location: 2410 W 16th St, Greeley, CO 80634
Phone: 970-810-3988    Fax: 970-810-3989
Dorothy Marie Schulte, FNP
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 1600 23rd Ave, Greeley, CO 80634
Phone: 970-356-2424    Fax: 970-346-2828
Melissa Rae Dellinger, FNP-BC
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 2015 35th Ave, Greeley, CO 80634
Phone: 970-810-4155    
Mr. Luke Patrick Roddy, FNP-C
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Medicare: Medicare Enrolled
Practice Location: 1130 38th Ave Ste A, Greeley, CO 80634
Phone: 970-888-0399    Fax: 833-499-1782
Beth Ann Ramsey, N.P.
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 4800 W 25th St, Greeley, CO 80634
Phone: 970-674-0079    Fax: 970-419-4780
Kelly Beth Johnson, NP
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Medicare: Medicare Enrolled
Practice Location: 6801 W 20th St Unit 101, Greeley, CO 80634
Phone: 970-378-8000    

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.