Are you Allison MARGARET O'LEARY Williams, MSN, APRN, NP-C? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 1010 A St, Greeley, CO 80631
About Allison Williams
Allison MARGARET O'LEARY Williams, MSN, APRN, NP-C is a nurse practitioner based in Greeley, CO. According to Medicare claims data, the services billed most often include hemoglobin a1c level. The provider's National Provider Identifier (NPI) is 1902376007.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (970) 313-0400
- Email not available
Practice Locations
1010 A ST
Greeley, CO 80631
Procedures Most Often Billed to Medicare
20 services · 17 patients · 1 distinct code
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Hemoglobin a1c level | Lab test | 83036 |
20 | Less often than most peers in Nurse Practitioner |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other nurse practitioners at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 3
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 24 related providers in 3 groups
Other nurse practitioners in Greeley 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2018 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Allison MARGARET O'LEARY Williams, MSN, APRN?
Allison MARGARET O'LEARY Williams, MSN, APRN is a nurse practitioner in Greeley, CO. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Allison MARGARET O'LEARY Williams, MSN, APRN's address?
Allison MARGARET O'LEARY Williams, MSN, APRN is listed at 1010 A St, Greeley, CO 80631. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Allison MARGARET O'LEARY Williams, MSN, APRN?
The number on file is (970) 313-0400. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Allison MARGARET O'LEARY Williams, MSN, APRN?
Allison MARGARET O'LEARY Williams, MSN, APRN's National Provider Identifier is 1902376007. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Allison MARGARET O'LEARY Williams, MSN, APRN train?
Allison MARGARET O'LEARY Williams, MSN, APRN attended Other, graduating in 2018. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Allison MARGARET O'LEARY Williams, MSN, APRN have?
Allison MARGARET O'LEARY Williams, MSN, APRN has 8 years experience. Calculated from a graduation year of 2018, reported in the CMS National Downloadable File.
CMS public data
What procedures does Allison MARGARET O'LEARY Williams, MSN, APRN perform?
According to Medicare billing data, Allison MARGARET O'LEARY Williams, MSN, APRN the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Allison MARGARET O'LEARY Williams, MSN, APRN's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Allison MARGARET O'LEARY Williams, MSN, APRN. If this is you, claiming it is free.
Guide.md
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