Karen Alexandra Greenhaw, FNP
Family Health Clinical Nurse Specialist · Penn Valley, CA
Karen Alexandra Greenhaw, FNP is a family health clinical nurse specialist with a practice address in Penn Valley, California, and NPI 1649548686, issued on Dec 6, 2011. Check the license (California 19916, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karen Alexandra Greenhaw
- Credential
- FNP
- Primary taxonomy
- Family Health Clinical Nurse Specialist 364SF0001X
- License number
- 19916 CA
Self-reported in NPPES; status is on the state search - Practice location
- 11400 Pleasant Valley RD, Penn Valley, CA 95946
- Phone
- (530) 432-7023
- Enumerated
- Dec 6, 2011
- Record last updated
- Feb 26, 2024
- Medicaid ID
- CA121918 CA
- Entity
- Type 1 · individual
8 nearest family health clinical nurse specialist records → All 32 in California → Look up another NPI →
Also registered at 11400 Pleasant Valley RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mara Berezniak, D.O.Family Medicine Physician1770535585
- Debra Burger-Bulawa, NPFamily Nurse Practitioner1689988065
- Andrew Burt, MDFamily Medicine Physician1902911845
Verify Karen Alexandra Greenhaw in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 19916Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7% fewer Medicare Part D claims than the average family health clinical nurse specialist in 2024
1,478 Medicare Part D claims for 380 beneficiaries, against an average of 1,589 among the 192 providers of this specialty who prescribed in Part D. 108 claims were for opioids.
Most prescribed
- Levothyroxine Sodium95 claims
- Atorvastatin Calcium92 claims
- Losartan Potassium64 claims
- Hydrocodone-Acetaminophen53 claims
- Rosuvastatin Calcium49 claims
- Tramadol Hcl47 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.
Industry payments in 2024: $181.45
8 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 152 providers of this specialty with any payment received $621.31 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Karen Alexandra Greenhaw among 32 family health clinical nurse specialist records in California
Karen Alexandra Greenhaw, FNP is one of 32 family health clinical nurse specialist records with a practice address in California. 44% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 38% of them.
- NPI issued2011 · 38% of these records are older, 56% newer
- In a Medicare fileYes · 44% of these records are
- In the CMS Doctors and Clinicians fileNo · 13% of these records are
- Record last updated2024 · 84% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 364SF0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 family health clinical nurse specialist record lists a practice address in Penn Valley
They are 1 of the 59 NPPES records with a practice address in Penn Valley, and 32 family health clinical nurse specialist records in California.
All 32 in California → Every provider in Penn Valley → Family Health Clinical Nurse Specialist nationwide →
The 8 family health clinical nurse specialist records with the nearest ZIP codes
- Holly Filter, FNPMarysville, CA 959011326307885
- Arezou Crose, FNPRedding, CA 960011720536840
- Christine OldenbourgVacaville, CA 956881437589058
- Carol Herrlie, RN, FNPPlacerville, CA 956671073838900
- Thomas Seivert, PA-CPlacerville, CA 956671740479492
- Ramona WaldmanWillits, CA 954901205216025
- Jenifer Tantarelli, FNPSanta Rosa, CA 954051972767739
- Margaret Kimball, RN, BSNSan Jose, CA 951351639953441
Common questions
What is Karen Alexandra Greenhaw, FNP's NPI number?
Karen Alexandra Greenhaw, FNP's National Provider Identifier (NPI) is 1649548686, issued on Dec 6, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Karen Alexandra Greenhaw, FNP located?
The NPPES record lists a practice address at 11400 Pleasant Valley RD, Penn Valley, CA, 95946. Phone: (530) 432-7023. Providers update this record themselves, so call before visiting.
How can I verify Karen Alexandra Greenhaw, FNP's license?
NPPES lists California license number 19916, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Karen Alexandra Greenhaw, FNP prescribe under Medicare Part D?
In 2024, Karen Alexandra Greenhaw, FNP had 1,478 Medicare Part D claims for 380 beneficiaries; the average among family health clinical nurse specialist prescribers was 1,589. 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.