Onna Klooster, FNP
NPI 1013387851 · Family Nurse Practitioner · Westminster, CO
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Onna Klooster, FNP is a Family Nurse Practitioner provider in Westminster, CO (NPI 1013387851).
Provider details
- NPI number
- 1013387851
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 0991629 (CO)
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 tenure25% of score
10 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
273 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 119 | $108 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 79 | $14 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 24 | $112 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 22 | $78 |
| Admn Sarscov2 Vacc 1 Dose90480 | 17 | $43 |
| Administration of Influenza Virus Vaccine |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 89 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 325 | 86 |
| Levothyroxine Sodium | 190 | 50 |
| Omeprazole | 159 | 48 |
| Lisinopril | 152 | 51 |
| Gabapentin | 151 | 46 |
| Losartan Potassium | 117 | 35 |
| Pantoprazole Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$35 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 2551 W 84th AveWestminster, CO 80031-3807Phone: (303) 430-5560Fax: (303) 430-5565
Registry dates
- Enumerated
- 2015-10-06
- Last updated
- 2025-08-27
- Certified
- 2025-08-27
Frequently asked questions
- What is Onna Klooster's NPI number?
- Onna Klooster's National Provider Identifier (NPI) is 1013387851, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Onna Klooster's specialty?
- Onna Klooster is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Onna Klooster located?
- Onna Klooster's practice location on file with NPPES is 8510 Bryant St, Westminster, CO 80031-3844.
- What is Onna Klooster's phone number?
- The practice phone number listed in the NPPES registry for Onna Klooster is (303) 430-5560.
- Does Onna Klooster accept Medicare?
- Onna Klooster is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Onna Klooster's NPI active?
- Yes — Onna Klooster's NPI (1013387851) is active in the NPPES registry as of the last update on 2025-08-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.