Ronald H. Chochinov, MD
Endocrinology, Diabetes & Metabolism Physician · Ventura, CA
Ronald H. Chochinov, MD is an endocrinology, diabetes & metabolism physician with a practice address in Ventura, California, and NPI 1730116930, issued on Jun 26, 2006. Check the license (California C37820, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ronald H. Chochinov
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- C37820 CA
Self-reported in NPPES; status is on the state search - Practice location
- 168 N Brent St, Ventura, CA 93003
- Phone
- (805) 667-3909
- Enumerated
- Jun 26, 2006
- Record last updated
- Jan 12, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (805) 667-3915
- Medicaid ID
- 00C378200 CA
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 1,131 in California → Look up another NPI →
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A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ronald H. Chochinov in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C37820Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
24 Medicare Part D claims, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D.
Most prescribed
- Gabapentin11 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.
Ronald H. Chochinov among 1,131 endocrinology, diabetes & metabolism physician records in California
Ronald H. Chochinov, MD is one of 1,131 endocrinology, diabetes & metabolism physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 54% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 69% of these records are
- Record last updated2010 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in California
There are 1,131 endocrinology, diabetes & metabolism physician records in California.
All 1,131 in California → Every provider in Ventura → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Susan Ahern, D.O.Ventura, CA 930031508156597
- Diana ChangVentura, CA 930031396142386
- Lauren FicksVentura, CA 930031609912666
- Martha Gonzalez, M.D., M.P.HVentura, CA 930031033261144
- Aldo Ilarde, MDVentura, CA 930031639253735
- Nissar Shah, M.DVentura, CA 930031407078215
- Jeffrey WeiVentura, CA 930031487016952
- Debra Ouyang, MDCamarillo, CA 930101174753826
Common questions
What is Ronald H. Chochinov, MD's NPI number?
Ronald H. Chochinov, MD's National Provider Identifier (NPI) is 1730116930, issued on Jun 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ronald H. Chochinov, MD located?
The NPPES record lists a practice address at 168 N Brent St, Ventura, CA, 93003. Phone: (805) 667-3909. Providers update this record themselves, so call before visiting.
How can I verify Ronald H. Chochinov, MD's license?
NPPES lists California license number C37820, 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 Ronald H. Chochinov, MD prescribe under Medicare Part D?
In 2024, Ronald H. Chochinov, MD had 24 Medicare Part D claims; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.