Karen Erickson, FNP-C
NPI 1851819981 · Family Nurse Practitioner · Boulder, CO
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Erickson, FNP-C is a Family Nurse Practitioner provider in Boulder, CO (NPI 1851819981).
Provider details
- NPI number
- 1851819981
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Female
- Sole proprietor
- Yes
- License
- 993205 (CO)
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
8 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
1,176 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) |
|---|---|---|
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 798 | $107 |
| Residence Visit for Established Patient With Low Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99348 | 184 | $64 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 96 | $111 |
| Residence Visit for Established Patient With High Level of Medical Decision Making, Per Day, If Using Time, at Least 60 Minutes99350 | 44 | $156 |
| Removal of Impacted Ear Wax69210 | 19 | $41 |
| Residence Visit for Established Patient With Straightforward Medical Decision Making, Per Day, If Using Time, at Least 15 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 59 | 20 |
| Amlodipine Besylate | 51 | 16 |
| Lisinopril | 33 | — |
| Apixabanbrand: Eliquis | 26 | — |
| Quetiapine Fumarate | 24 | — |
| Gabapentin | 23 | — |
| Memantine Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-09-09
- Last updated
- 2025-10-14
- Certified
- 2025-10-14
Frequently asked questions
- What is Karen Erickson's NPI number?
- Karen Erickson's National Provider Identifier (NPI) is 1851819981, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Erickson's specialty?
- Karen Erickson is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Erickson located?
- Karen Erickson's practice location on file with NPPES is 2919 Valmont Rd Ste 204, Boulder, CO 80301-1350.
- What is Karen Erickson's phone number?
- The practice phone number listed in the NPPES registry for Karen Erickson is (303) 938-1110.
- Does Karen Erickson accept Medicare?
- Karen Erickson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Erickson's NPI active?
- Yes — Karen Erickson's NPI (1851819981) is active in the NPPES registry as of the last update on 2025-10-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.