ALLISON MARGARET O'LEARY WILLIAMS (MSN, APRN, NP-C) – Nurse Practitioner, NPI 1902376007
Nurse Practitioner
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
5,198 NURSE PRACTITIONER in CO
Provider Addresses for ALLISON MARGARET O'LEARY WILLIAMS (MSN, APRN, NP-C)
2620, Elm Hill Pike, Donelson, Nashville, Davidson County, Tennessee, 37214, United States
NASHVILLE, TN 372143108
Phone:
Type: Mailing
2930 11TH AVE
EVANS, CO 806201011
Phone: (970) 350-4606
Fax: (970) 313-0404
Type: Mailing
1010 A ST
GREELEY, CO 806312021
Phone: (970) 313-0400
Fax: (970) 313-0404
Type: Location
Fred Meyer Jewelers, 1842, North College Avenue, Fort Collins, Larimer County, Colorado, 80524-1333, United States
FORT COLLINS, CO 805241323
Phone: (571) 442-4683
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $34.
Total Amount is formed as General ($34) + Research ($0) + Ownership ($0) = $34.
Last reported payment date: 2024-07-03 • Largest payer in this snapshot: Insulet Corporation ($34).
Total Amount
$34
General + Research + Ownership
Payments
1
Total payment records
General Amount
$34
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-07-03
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Insulet Corporation | $34 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2019-02-15
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20190215002059 | I | Nurse Practitioner | CO | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 83036 | Hemoglobin a1c level | 14 | 12 | $0 |
Insurance plans in this area (ZIP 37214)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | CO | |
| Physician Assistant | CO | |
| Family Practice | CO | |
| Nurse Practitioner | CO | |
| Physician Assistant | CO | |
| Nurse Practitioner | CO | |
| Physician Assistant | TX | |
| - | CO | |
| Family Practice, Obstetrics/Gynecology | CO | |
| Nurse Practitioner | CO |
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