Ann Frisius, FNP-C
NPI 1164197422 · Family Nurse Practitioner · Chico, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ann Frisius, FNP-C is a Family Nurse Practitioner provider in Chico, CA (NPI 1164197422).
Provider details
- NPI number
- 1164197422
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Female
- Sole proprietor
- Yes
- License
- 95017918 (CA)
Specialties & taxonomies
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
4 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,830 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) |
|---|---|---|
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 1,327 | $6 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 498 | $79 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 332 | $47 |
| Destruction of Skin Growth, 1-14 Growths17110 | 218 | $102 |
| Destruction of Precancer Skin Growth, 15 Or More Growths17004 | 106 | $148 |
| Biopsy of Related Skin Growth, First Growth11102 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ketoconazole | 105 | 55 |
| Triamcinolone Acetonide | 64 | 37 |
| Fluorouracil | 52 | 44 |
| Clobetasol Propionate | 44 | 16 |
| Doxycycline Hyclate | 30 | 17 |
| Metronidazole | 24 | 18 |
| Clindamycin Phosphate | 18 | — |
| Clotrimazole | 15 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,496 across 77 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
Registry dates
- Enumerated
- 2021-08-10
- Last updated
- 2021-08-18
- Certified
- 2021-08-18
Frequently asked questions
- What is Ann Frisius's NPI number?
- Ann Frisius's National Provider Identifier (NPI) is 1164197422, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ann Frisius's specialty?
- Ann Frisius is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ann Frisius located?
- Ann Frisius's practice location on file with NPPES is 100 Independence Cir, Chico, CA 95973-0258.
- What is Ann Frisius's phone number?
- The practice phone number listed in the NPPES registry for Ann Frisius is (530) 899-9393.
- Does Ann Frisius accept Medicare?
- Ann Frisius is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ann Frisius's NPI active?
- Yes — Ann Frisius's NPI (1164197422) is active in the NPPES registry as of the last update on 2021-08-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.