Karen Van Leuven, PHD, FNP
Family Nurse Practitioner · Piedmont, CA
Karen Van Leuven, PHD, FNP is a family nurse practitioner with a practice address in Piedmont, California, and NPI 1003967415, issued on Jan 13, 2007. Check the license (California 322586, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karen Van Leuven
- Credential
- PHD, FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 322586 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2 Greenbank Ave, Piedmont, CA 94611
- Phone
- (510) 499-7031
- Enumerated
- Jan 13, 2007
- Record last updated
- Sep 30, 2013 (not updated in 13 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040701000415); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Verify Karen Van Leuven in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 322586Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
15% more Medicare Part D claims than the average family nurse practitioner in 2024
1,497 Medicare Part D claims for 149 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims. 167 claims were for opioids.
Most prescribed
- Atorvastatin Calcium88 claims
- Hydrocodone-Acetaminophen82 claims
- Eliquis52 claims
- Gabapentin52 claims
- Levothyroxine Sodium51 claims
- Furosemide49 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.
The MIPS final score for 2023 (Medicare payment program): 9.7 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Snf Specialists Medical CorporationFairfield, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen Van Leuven among 16,966 family nurse practitioner records in California
Karen Van Leuven, PHD, FNP is one of 16,966 family nurse practitioner records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 7% of them.
- NPI issued2007 · 7% of these records are older, 87% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 40% of these records are
- Graduated1999 · median 2019 among the 6,793 with a school on file
- Record last updated2013 · 42% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 family nurse practitioner records list a practice address in Piedmont
They are 5 of the 139 NPPES records with a practice address in Piedmont, and 16,966 family nurse practitioner records in California.
All 16,966 in California → Every provider in Piedmont → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Jessica Behnam Hicks, FNP, RNOakland, CA 946111548620578
- Lucretia Bolin, NPOakland, CA 946111598807117
- Ellen Brennan, FNPOakland, CA 946111376618702
- Jennifer Burroughs, NPOakland, CA 946111497814206
- Erica Faafiu, NPOakland, CA 946111477723815
- Ruth Green, NPOakland, CA 946111730351669
- Regina Harrison, N.P.Oakland, CA 946111992842538
- Leeina Hoff, NPOakland, CA 946111578910923
Common questions
What is Karen Van Leuven, PHD, FNP's NPI number?
Karen Van Leuven, PHD, FNP's National Provider Identifier (NPI) is 1003967415, issued on Jan 13, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Karen Van Leuven, PHD, FNP located?
The NPPES record lists a practice address at 2 Greenbank Ave, Piedmont, CA, 94611. Phone: (510) 499-7031. Providers update this record themselves, so call before visiting.
How can I verify Karen Van Leuven, PHD, FNP's license?
NPPES lists California license number 322586, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Karen Van Leuven, PHD, FNP prescribe under Medicare Part D?
In 2024, Karen Van Leuven, PHD, FNP had 1,497 Medicare Part D claims for 149 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
What is Karen Van Leuven, PHD, FNP's MIPS final score?
The 2023 MIPS final score is 9.7 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.