Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. James Collen, MD

Individual provider Neurology with Special Qualifications in Child Neurology Physician · NPI 1851845945

Dr. James Collen, MD is a Neurology in Pomona, California. Graduated from Ohio State University College of Medicine in 2015, 11 years ago. Practices with The Neurology Group Inc, a 19-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
11
Trained at
Ohio State University College of Medicine
Licensed in
CA
In the registry since
2016
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

2895 N Towne Ave
Pomona, CA 91767-2009
Phone: (909) 982-2719
Fax: (909) 946-9931
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Neurology with Special Qualifications in Child Neurology Physician (primary) Taxonomy 2084N0402X · Licence A146843 (CA)

Record details

NPI number1851845945
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 7, 2016
Last updated in NPPESFebruary 1, 2023
Certification dateFebruary 1, 2023
Mailing address2895 N Towne Ave, Pomona, CA 91767-2009

Medicare enrollment

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

Medicare specialtyNEUROLOGY
Medical schoolOHIO STATE UNIVERSITY COLLEGE OF MEDICINE
Graduated 2015 (11 years in practice)
Group practice The Neurology Group Inc — 19 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount