Karen Resnick
Hematology & Oncology Physician · La Jolla, CA
Karen Resnick is a hematology & oncology physician with a practice address in La Jolla, California, and NPI 1457988909, issued on Mar 25, 2020. Check the license (California A186345, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Karen Resnick
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- A186345 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3855 Health Sciences Dr # 829, La Jolla, CA 92093
- Phone
- (858) 657-5281
- Enumerated
- Mar 25, 2020
- Record last updated
- Jan 2, 2025
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Also registered at 3855 Health Sciences Dr # 829
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Bliamptis, MDInternal Medicine Physician1265079768
- James Buturla, M.D.Hematology & Oncology Physician1770997256
- Ashwin Ganti, MDStudent in an Organized Health Care Education/Training Program1932720315
- Amanda HerrmannHematology & Oncology Physician1801390638
- Hannah King, DOStudent in an Organized Health Care Education/Training Program1124777347
- Adam Kolawa, MDStudent in an Organized Health Care Education/Training Program1225619901
Verify Karen Resnick in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A186345Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
37 Medicare Part D claims for 14 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D.
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.
Karen Resnick among 1,583 hematology & oncology physician records in California
Karen Resnick is one of 1,583 hematology & oncology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 97% of them.
- NPI issued2020 · 97% of these records are older, 2% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 71% of these records are
- Record last updated2025 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
46 hematology & oncology physician records list a practice address in La Jolla
They are 46 of the 3,648 NPPES records with a practice address in La Jolla, and 1,583 hematology & oncology physician records in California.
All 1,583 in California → Every provider in La Jolla → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Rafael Bejar, M.D., PH.D.La Jolla, CA 920931720051493
- Sarah Boles, M.D.La Jolla, CA 920931245391242
- Imawati Budihardjo, M.D., PH.DLa Jolla, CA 920931043337173
- Srila Gopal, M.D.La Jolla, CA 920931831323369
- Ayad Hamdan, M.D.La Jolla, CA 920931144431230
- Teresa Helsten, M.D.La Jolla, CA 920931265408678
- Akram Mesleh Shayeb, M.D.La Jolla, CA 920931861784993
- Aaron Miller, M.D., PH.D.La Jolla, CA 920931104127679
Common questions
What is Karen Resnick's NPI number?
Karen Resnick's National Provider Identifier (NPI) is 1457988909, issued on Mar 25, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Karen Resnick located?
The NPPES record lists a practice address at 3855 Health Sciences Dr # 829, La Jolla, CA, 92093. Phone: (858) 657-5281. Providers update this record themselves, so call before visiting.
How can I verify Karen Resnick's license?
NPPES lists California license number A186345, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Karen Resnick prescribe under Medicare Part D?
In 2024, Karen Resnick had 37 Medicare Part D claims for 14 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.