Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

James M Herman, MD

Individual provider Neurological Surgery Physician · NPI 1952396491

James M Herman, MD practises Neurosurgery in Ventura, California. Graduated from Northwestern University Feinberg Medical School in 1986, 40 years ago. Practices with County of Ventura, a 274-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
40
Trained at
Northwestern University Feinberg Medical School
Licensed in
CA
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

168 N Brent St Ste 408
Ventura, CA 93003-2824
Phone: (805) 643-2179
Fax: (805) 643-0672
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 300 Hillmont Avenue, Bldg. 340, Suite 401, Ventura, CA 93003 — (805) 648-9830

Specialties & licences

Neurological Surgery Physician (primary) Taxonomy 207T00000X · Licence G72516 (CA)

Record details

NPI number1952396491
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedSeptember 12, 2005
Last updated in NPPESMay 10, 2022
Certification dateMay 10, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNEUROSURGERY
Medical schoolNORTHWESTERN UNIVERSITY FEINBERG MEDICAL SCHOOL
Graduated 1986 (40 years in practice)
Group practice County Of Ventura — 274 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Spinal fusion 68 times · 63rd percentile
Laminectomy or laminotomy (partial removal of spine bones) 20 times · 49th percentile
Removal of tissue 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients285
Services billed 599 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at County of Ventura

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 274 clinicians in the practice; 12 are shown here.

Other providers in Ventura