Michelle Williamson, APRN
NPI 1487956843 · Acute Care Nurse Practitioner · Greeley, CO
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michelle Williamson, APRN is a Acute Care Nurse Practitioner provider in Greeley, CO (NPI 1487956843).
Provider details
- NPI number
- 1487956843
- Entity type
- Individual
- Primary specialty
- Acute Care Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN
- Sex
- Female
- Sole proprietor
- No
- License
- CP000945 (SD)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
731 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 709 | $102 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 22 | $72 |
Typical Medicare-allowed amounts for these services range $72–$102 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 28 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 147 | 71 |
| Apixabanbrand: Eliquis | 110 | 38 |
| Furosemide | 110 | 47 |
| Nitroglycerin | 88 | 54 |
| Carvedilol | 86 | 32 |
| Amlodipine Besylate | 83 | 32 |
| Potassium Chloride | 81 | 35 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-11-17
- Last updated
- 2018-09-11
Frequently asked questions
- What is Michelle Williamson's NPI number?
- Michelle Williamson's National Provider Identifier (NPI) is 1487956843, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michelle Williamson's specialty?
- Michelle Williamson is listed in the NPPES registry with a primary specialty of Acute Care Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Michelle Williamson located?
- Michelle Williamson's practice location on file with NPPES is 1801 16th St, Greeley, CO 80631-5154.
- What is Michelle Williamson's phone number?
- The practice phone number listed in the NPPES registry for Michelle Williamson is (239) 340-0816.
- Does Michelle Williamson accept Medicare?
- Michelle Williamson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michelle Williamson's NPI active?
- Yes — Michelle Williamson's NPI (1487956843) is active in the NPPES registry as of the last update on 2018-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.