Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. NELSON HORSLEY MD
NPI 1720604515
Psychiatry & Neurology - Psychiatry in San Bernardino, CA

Q: What is Nelson Horsley's NPI number?

The NPI number for Nelson Horsley is 1720604515. It was assigned to this individual provider in the NPPES registry on June 17, 2020.

Q: What is Nelson Horsley's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Q: When was this NPI record last updated?

The NPPES record for Nelson Horsley was last updated on September 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 48 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since June 17, 2020PECOS Enrolled

290 N D ST STE 700, SAN BERNARDINO, CA 92401(603) 521-5219(603) 521-5219 Get Directions Write a Review

NPPES record last updated: September 21, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 21, 2026, Jun 17, 2020 (2 updates tracked since 2020).

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About Dr. Nelson Horsley Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. NELSON HORSLEY MD (NPI 1720604515) is an individual psychiatry provider in San Bernardino, California, licensed in California (187355) and active in the NPI registry since June 2020. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1720604515

Entity TypeIndividualMale

Primary Taxonomy2084P0800X

Provider Legal NameDR. NELSON HORSLEYCredential: MD

Location Address290 N D ST STE 700San Bernardino, CA 92401-1705

Mailing Address1447 Moore StRedlands, CA 92374-5058 · (603) 521-5219 · Fax (909) 710-9205

Phone(603) 521-5219

Fax(603) 521-5219

Sole ProprietorNo

Enumeration DateJune 17, 2020

Last NPPES UpdateSeptember 21, 20262 updates tracked since enumeration

NPPES CertifiedSeptember 21, 2026

✔ NPI 1720604515 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0800X

License✔ Licensed in CA · 187355

Definition

A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

290 N D ST STE 700, San Bernardino, CA 92401

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Nelson Horsley Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Nelson Horsley reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Department Of State Hospitals

46 mi

Psychiatric Hospital

11401 BLOOMFIELD AVE
Norwalk, CA 90650

Reassigned Medicare billing, California enrollment
755 clinicians in this Medicare group

NPI 1265406565 (562) 863-7011

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92401 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$179.42 typical visit price

range $59.60 – $179.42

Typical copayment $44.85 (range $14.90 – $44.85)

Most-billed visit code 99205

Established Patient

$74.08 typical visit price

range $19.37 – $146.42

Typical copayment $18.52 (range $4.84 – $36.60)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JESSICA A ARMENTA

Day Training/Habilitation Specialist