James Collen, MD
NPI 1851845945 · Neurology with Special Qualifications in Child Neurology Physician · Pomona, CA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Collen, MD is a Neurology with Special Qualifications in Child Neurology Physician provider in Pomona, CA (NPI 1851845945).
Provider details
- NPI number
- 1851845945
- Entity type
- Individual
- Primary specialty
- Neurology with Special Qualifications in Child Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A146843 (CA)
Specialties & taxonomies
- Neurology with Special Qualifications in Child Neurology PhysicianPrimary2084N0402XLicense A146843 (CA)
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
9 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$20,215 across 94 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-08-07
- Last updated
- 2023-02-01
- Certified
- 2023-02-01
Frequently asked questions
- What is James Collen's NPI number?
- James Collen's National Provider Identifier (NPI) is 1851845945, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Collen's specialty?
- James Collen is listed in the NPPES registry with a primary specialty of Neurology with Special Qualifications in Child Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is James Collen located?
- James Collen's practice location on file with NPPES is 2895 N Towne Ave, Pomona, CA 91767-2009.
- What is James Collen's phone number?
- The practice phone number listed in the NPPES registry for James Collen is (909) 982-2719.
- Does James Collen accept Medicare?
- James Collen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Collen's NPI active?
- Yes — James Collen's NPI (1851845945) is active in the NPPES registry as of the last update on 2023-02-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.