Jeremy A. Cholfin, M.D., PH.D.
Neurology Physician · Porter Ranch, CA
Jeremy A. Cholfin, M.D., PH.D. is a neurology physician with a practice address in Porter Ranch, California, and NPI 1376787424, issued on Apr 20, 2009. Check the license (California A115234, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jeremy A. Cholfin
- Credential
- M.D., PH.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- A115234 CA
Self-reported in NPPES; status is on the state search - Practice location
- 19950 Rinaldi St, Porter Ranch, CA 91326
- Phone
- (818) 271-2400
- Enumerated
- Apr 20, 2009
- Record last updated
- Nov 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (818) 271-2401
- Medicare enrollment
- Enrolled (PECOS I20131021000726); accepts Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 2009
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 2,339 in California → Look up another NPI →
Also registered at 19950 Rinaldi St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Jeremy A. Cholfin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A115234Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4% fewer Medicare Part D claims than the average neurology physician in 2024
1,321 Medicare Part D claims for 342 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.
Most prescribed
- Carbidopa-Levodopa251 claims
- Gabapentin139 claims
- Levetiracetam124 claims
- Lamotrigine44 claims
- Entacapone40 claims
- Lacosamide31 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 one group practice
- Southern California Permanente Medical GroupOxnard, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jeremy A. Cholfin among 2,339 neurology physician records in California
Jeremy A. Cholfin, M.D., PH.D. is one of 2,339 neurology physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 58% of them.
- NPI issued2009 · 58% of these records are older, 39% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2009 · median 2006 among the 1,628 with a school on file
- Record last updated2021 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in California
There are 2,339 neurology physician records in California.
All 2,339 in California → Every provider in Porter Ranch → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Anita Tipirneni, MDPorter Ranch, CA 913261588923064
- Liang Wang, MDNorthridge, CA 913251467815175
- Lawrence Weinberg, M.D.Northridge, CA 913251730296443
- Ronald Ziman, MDNorthridge, CA 913251841213329
- Gudarz Davar, M.D.Thousand Oaks, CA 913201881641033
- Moossa Heikali, M.D.Encino, CA 913161962448431
- Evgeny Tsimerinov, M.D., PH.D.Encino, CA 913161295789972
- Joanna Dearlove, M.D.Sylmar, CA 913421740418839
Common questions
What is Jeremy A. Cholfin, M.D., PH.D.'s NPI number?
Jeremy A. Cholfin, M.D., PH.D.'s National Provider Identifier (NPI) is 1376787424, issued on Apr 20, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Jeremy A. Cholfin, M.D., PH.D. located?
The NPPES record lists a practice address at 19950 Rinaldi St, Porter Ranch, CA, 91326. Phone: (818) 271-2400. Providers update this record themselves, so call before visiting.
How can I verify Jeremy A. Cholfin, M.D., PH.D.'s license?
NPPES lists California license number A115234, 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 Jeremy A. Cholfin, M.D., PH.D. prescribe under Medicare Part D?
In 2024, Jeremy A. Cholfin, M.D., PH.D. had 1,321 Medicare Part D claims for 342 beneficiaries; the average among neurology physician prescribers was 1,370. 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.