RONNIE L BLACKWELL MS
NPI 1386258804
Psychologist in Orange, CA

Active since September 02, 2020PECOS Enrolled
1201 W LA VETA AVE, ORANGE, CA 92868(714) 509-8481 Get Directions Write a Review

NPPES record last updated: April 8, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 8, 2026, Mar 31, 2026, Aug 8, 2023 and 1 more (4 updates tracked since 2020).

About Ronnie L Blackwell Ms NPPES

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

RONNIE L BLACKWELL MS (NPI 1386258804) is an individual psychologist in Orange, California and active in the NPI registry since September 2020. He is enrolled in Medicare PECOS, maintains a secondary practice location in Chelsea, and is a graduate of Boston University School Of Medicine (2019).

NPPES Registry Identity

NPI1386258804
Entity TypeIndividualMale
Primary Taxonomy103T00000X
Provider Legal NameRONNIE L BLACKWELLCredential: MS
Location Address1201 W LA VETA AVEOrange, CA 92868-4203
Mailing Address1201 W La Veta AveOrange, CA 92868-4203 · (714) 509-8481
Sole ProprietorNo
Medical School CMSBoston University School Of MedicineGraduated 2019
Enumeration DateSeptember 2, 2020
Last NPPES UpdateApril 8, 20264 updates tracked since enumeration
NPPES CertifiedApril 8, 2026
✔ NPI 1386258804 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
Definition
A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.
1201 W LA VETA AVE, Orange, CA 92868

Secondary Practice Location 1

Location 1100 Everett Ave, MGH Chelsea Health CenterChelsea, MA 02150-2309 · Phone (617) 884-8300

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ronnie L Blackwell Ms is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2860969474
PECOS Enrollment IDI20260430002524
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 Ronnie Blackwell reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Clinic/Center
1493 CAMBRIDGE ST
Cambridge, MA 02139
  • Reassigned Medicare billing, Massachusetts enrollment
  • 362 clinicians in this Medicare group

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

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.

Social Worker
1201 W LA VETA AVE
ORANGE, CA 92868
Neurological Surgery
1201 W LA VETA AVE
ORANGE, CA 92868
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
1201 W LA VETA AVE
ORANGE, CA 92868
Pediatrics (Pediatric Hematology-Oncology)
1201 W LA VETA AVE
ORANGE, CA 92868
Student in an Organized Health Care Education/Training Program
1201 W LA VETA AVE
ORANGE, CA 92868
Psychologist (Clinical Child & Adolescent)
1201 W LA VETA AVE, 503
ORANGE, CA 92868
Pediatrics (Pediatric Endocrinology)
1201 W LA VETA AVE
ORANGE, CA 92868
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
1201 W LA VETA AVE, CHILDREN'S HOSPITAL OF ORANGE COUNTY, NEUROLOGY
ORANGE, CA 92868

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ronnie Blackwell's NPI number?

The NPI number for Ronnie Blackwell is 1386258804. It was assigned to this individual provider in the NPPES registry on September 2, 2020.

Where is Ronnie Blackwell located?

Ronnie Blackwell practices at 1201 W La Veta Ave, Orange, CA 92868. The listed phone number is (714) 509-8481.

What is Ronnie Blackwell's specialty?

The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.

Is Ronnie Blackwell enrolled in Medicare?

Yes. Ronnie Blackwell is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Ronnie Blackwell's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ronnie Blackwell reassigns Medicare benefits to Cambridge Public Health Commission (Cambridge, MA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ronnie Blackwell's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ronnie Blackwell accept?

Health plans from Harvard Pilgrim Health Care and Taro Health list Ronnie Blackwell as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Ronnie Blackwell was last updated on April 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months 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.