Marissa Frost, APRN, CNP
NPI 1639786270 · Family Nurse Practitioner · Dixon, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marissa Frost, APRN, CNP is a Family Nurse Practitioner provider in Dixon, IL (NPI 1639786270).
Provider details
- NPI number
- 1639786270
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN, CNP
- Sex
- Female
- Sole proprietor
- No
- License
- 209.022022 (IL)
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 tenure28% of score
5 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
204 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 | 126 | $71 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 47 | $49 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 31 | $112 |
Typical Medicare-allowed amounts for these services range $49–$112 (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 · 49 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 110 | 33 |
| Lisinopril | 83 | 26 |
| Amlodipine Besylate | 77 | 26 |
| Omeprazole | 75 | 30 |
| Levothyroxine Sodium | 68 | 22 |
| Cyclobenzaprine Hcl | 52 | 11 |
| Losartan Potassium | 47 |
Practice location
Mailing address
Additional practice locations (1)
- 403 E 1st StDixon, IL 61021-3116Phone: (815) 288-5531
Registry dates
- Enumerated
- 2020-09-28
- Last updated
- 2024-12-11
- Certified
- 2024-12-11
Frequently asked questions
- What is Marissa Frost's NPI number?
- Marissa Frost's National Provider Identifier (NPI) is 1639786270, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Frost's specialty?
- Marissa Frost is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marissa Frost located?
- Marissa Frost's practice location on file with NPPES is 102 S Hennepin Ave, Dixon, IL 61021-3013.
- What is Marissa Frost's phone number?
- The practice phone number listed in the NPPES registry for Marissa Frost is (815) 288-7711.
- Does Marissa Frost accept Medicare?
- Marissa Frost is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marissa Frost's NPI active?
- Yes — Marissa Frost's NPI (1639786270) is active in the NPPES registry as of the last update on 2024-12-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.