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

Dr. James Collen, MD

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

Dr. James Collen, MD practises 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.

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Practice location Address checks out

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

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

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Honoraria $32,150 13 payments
Travel and Lodging $4,084 24 payments · travel or lodging paid or reimbursed, such as to attend a conference
Compensation for services other than consulting , including serving as faculty or as a speaker at a venue other than a continuing education program $4,050 4 payments
Food and Beverage $3,441 102 payments · a meal or drink at a meeting or visit, not a fee
Education $55 1 payment · educational material or training, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Colleagues at The Neurology Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 19 clinicians in the practice; 12 are shown here.