Erika Leigh Clark
Internal Medicine Physician · Chico, CA
Erika Leigh Clark is an internal medicine physician with a practice address in Chico, California, and NPI 1083292015, issued on Mar 31, 2021. Check the license (California 198975, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Erika Leigh Clark
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 198975 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1531 Esplanade, Chico, CA 95926
- Phone
- (530) 896-7455
- Enumerated
- Mar 31, 2021
- Record last updated
- Sep 10, 2024
- Medicare enrollment
- Enrolled (PECOS I20241021000066); accepts Medicare assignment
- Medical or professional school
- Texas A & M University System, Hsc, College Of Medicine, 2021
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1531 Esplanade
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Danny Abifadel, PHARM.D.Pharmacotherapy Pharmacist1427245455
- Bruce Aikin, MDEmergency Medicine Physician1679583074
- Mark Allen, M.D.Psychiatry Physician1114155256
- Francisco Alvarez, M.D.Hospitalist Physician1588690648
- Kelley Alvarez, P.A.Physician Assistant1912393448
- Travis Anderson, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1730456468
Verify Erika Leigh Clark in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 198975Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average internal medicine physician in 2024
330 Medicare Part D claims for 88 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 23 claims were for opioids.
Most prescribed
- Atorvastatin Calcium27 claims
- Gabapentin17 claims
- Eliquis15 claims
- Hydrocodone-Acetaminophen12 claims
- Amlodipine Besylate11 claims
- Furosemide11 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 2 group practices
- Enloe Health And WellnessChico, CA
- Enloe Medical CenterChico, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Erika Leigh Clark among 17,696 internal medicine physician records in California
Erika Leigh Clark is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 92% of them.
- NPI issued2021 · 92% of these records are older, 5% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2021 · median 2004 among the 11,065 with a school on file
- Record last updated2024 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in California
There are 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Chico → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Abdullah Al Dwairi, M.D.Chico, CA 959261639170806
- David Alonso, MDChico, CA 959261467403246
- Julie Archer, M.D.Chico, CA 959261962409573
- Arthur Brinckerhoff, M.D.Chico, CA 959261023049624
- Sally Foltz, MDChico, CA 959261447252564
- Barry Furst, MDChico, CA 959261295863462
- Larry Hsu, MDChico, CA 959261215935622
- Roberto Illa, M.D.Chico, CA 959261447248224
Common questions
What is Erika Leigh Clark's NPI number?
Erika Leigh Clark's National Provider Identifier (NPI) is 1083292015, issued on Mar 31, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Erika Leigh Clark located?
The NPPES record lists a practice address at 1531 Esplanade, Chico, CA, 95926. Phone: (530) 896-7455. Providers update this record themselves, so call before visiting.
How can I verify Erika Leigh Clark's license?
NPPES lists California license number 198975, 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 Erika Leigh Clark prescribe under Medicare Part D?
In 2024, Erika Leigh Clark had 330 Medicare Part D claims for 88 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.