Karen Ann Erickson, FNP-C
Family Nurse Practitioner · Boulder, CO
Karen Ann Erickson, FNP-C is a family nurse practitioner with a practice address in Boulder, Colorado, and NPI 1851819981, issued on Sep 9, 2017. Check the license (Colorado 993205, as entered in NPPES) with the Colorado board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karen Ann Erickson
- Credential
- FNP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 993205 CO
Self-reported in NPPES; status is on the state search - Practice location
- 2919 Valmont RD Ste 204, Boulder, CO 80301
- Phone
- (303) 938-1110
- Enumerated
- Sep 9, 2017
- Record last updated
- Oct 14, 2025
- Fax
- (303) 938-1145
- Medicare enrollment
- Enrolled (PECOS I20171113001097); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 3,492 in Colorado → Look up another NPI →
Also registered at 2919 Valmont RD Ste 204
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Raeann Smith, NPAdult Health Nurse Practitioner1720719578
- Ashley Zemlicka, AGNP-CNurse Practitioner1316809098
Verify Karen Ann Erickson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Colorado board licenses this profession
Search for license 993205Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% fewer Medicare Part D claims than the average family nurse practitioner in 2024
878 Medicare Part D claims for 163 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 59 claims were for opioids.
Most prescribed
- Levothyroxine Sodium59 claims
- Amlodipine Besylate51 claims
- Lisinopril33 claims
- Eliquis26 claims
- Quetiapine Fumarate24 claims
- Gabapentin23 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Wisdom Health PCBoulder, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen Ann Erickson among 3,492 family nurse practitioner records in Colorado
Karen Ann Erickson, FNP-C is one of 3,492 family nurse practitioner records with a practice address in Colorado. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 43% of them.
- NPI issued2017 · 43% of these records are older, 52% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2017 · median 2019 among the 1,950 with a school on file
- Record last updated2025 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
82 family nurse practitioner records list a practice address in Boulder
They are 82 of the 5,635 NPPES records with a practice address in Boulder, and 3,492 family nurse practitioner records in Colorado.
All 3,492 in Colorado → Every provider in Boulder → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Lisa Bowles, FNPBoulder, CO 803011659780351
- Zachary Campbell, N.P.Boulder, CO 803011871922161
- Randolph Davis, N.P.Boulder, CO 803011841843026
- Alison Davis, NP, RNBoulder, CO 803011356990691
- Carla Keahey, ACNS, FNPBoulder, CO 803011750442323
- Emma Kenyon, NPBoulder, CO 803011528627569
- Alicia Maltzman, N.P.Boulder, CO 803011710960380
- Jonathan Nienhouse, FNPBoulder, CO 803011841388402
Common questions
What is Karen Ann Erickson, FNP-C's NPI number?
Karen Ann Erickson, FNP-C's National Provider Identifier (NPI) is 1851819981, issued on Sep 9, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Karen Ann Erickson, FNP-C located?
The NPPES record lists a practice address at 2919 Valmont RD Ste 204, Boulder, CO, 80301. Phone: (303) 938-1110. Providers update this record themselves, so call before visiting.
How can I verify Karen Ann Erickson, FNP-C's license?
NPPES lists Colorado license number 993205, as entered by the provider. Search the Colorado board that licenses this profession; the NPPES record confirms identity only.
How much does Karen Ann Erickson, FNP-C prescribe under Medicare Part D?
In 2024, Karen Ann Erickson, FNP-C had 878 Medicare Part D claims for 163 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.