ALEXIS OLSON BACHIEGA PHD
NPI 1912315037
Clinical Neuropsychologist in San Diego, CA

Q: What is Alexis Olson Bachiega's NPI number?

The NPI number for Alexis Olson Bachiega is 1912315037. It was assigned to this individual provider in the NPPES registry on August 1, 2014.

Q: What is Alexis Olson Bachiega's specialty?

The primary specialty registered for this NPI is Clinical Neuropsychologist with taxonomy code 103G00000X.

Active since August 01, 2014PECOS EnrolledAccepts Medicare Assignment

3990 OLD TOWN AVE STE C303, SAN DIEGO, CA 92110(858) 964-0722(866) 437-0375 Get Directions Write a Review

NPPES record last updated: February 12, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 11, 2025, Feb 25, 2019 (2 updates tracked since 2019).

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About Alexis Olson Bachiega Phd NPPES

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

ALEXIS OLSON BACHIEGA PHD (NPI 1912315037) is an individual clinical neuropsychologist in San Diego, California, licensed in California (30765) and active in the NPI registry since August 2014. She is enrolled in Medicare PECOS and is a graduate of Other (2017).

NPPES Registry Identity

NPI1912315037

Entity TypeIndividualFemale

Primary Taxonomy103G00000X

Provider Legal NameALEXIS OLSON BACHIEGACredential: PHD

Location Address3990 OLD TOWN AVE STE C303San Diego, CA 92110-2932

Mailing Address3990 Old Town Ave Ste C303San Diego, CA 92110-2932 · (858) 964-0722 · Fax (866) 437-0375

Phone(858) 964-0722

Fax(866) 437-0375

Sole ProprietorYes

Medical School CMSOtherGraduated 2017

Enumeration DateAugust 1, 2014

Last NPPES UpdateFebruary 12, 20262 updates tracked since enumeration

NPPES CertifiedFebruary 12, 2026

✔ NPI 1912315037 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyClinical NeuropsychologistBehavioral Health & Social Service Providers

Taxonomy Code103G00000X

License✔ Licensed in CA · 30765

Definition

A clinical psychologist who applies principles of assessment and intervention based upon the scientific study of human behavior as it relates to normal and abnormal functioning of the central nervous system. The specialty is dedicated to enhancing the understanding of brain-behavior relationships and the application of such knowledge to human problems.

Also ListedPsychologistTaxonomy 103T00000X · License 30765 (CA)

3990 OLD TOWN AVE STE C303, San Diego, CA 92110

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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 and accepts Medicare assignment

Alexis Olson Bachiega Phd is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7113269341

PECOS Enrollment IDI20190508001810

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 Reassignments

Medicare enrollment records show Alexis Olson Bachiega reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Pacific Neurobehavioral Clinic: A Psychological Corporation

Same address

Community/Behavioral Health

3990 OLD TOWN AVE STE C303
San Diego, CA 92110

Reassigned Medicare billing, California enrollment
Medicare enrollment name: Pacific Neurobehavioral Clinic Inc
10 clinicians in this Medicare group

NPI 1952724817 (858) 964-0722

Southern California Psychology Centers, Apc

5.1 mi

Mental Health (Including Community Mental Health Center)

8775 AERO DR, SUITE 238
San Diego, CA 92123

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

NPI 1386066363 (855) 629-7272

Joanne M. Hamilton Psychologist A Professional Corporation

12 mi

Clinical Neuropsychologist

9968 HIBERT ST STE 105
San Diego, CA 92131

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

NPI 1144428467 (858) 693-3113

Erik Lande, Phd, A Professional Psychological Corporation

148 mi

Clinical Neuropsychologist

1200 PASEO CAMARILLO STE 245
Camarillo, CA 93010

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

NPI 1972932481 (805) 988-6197

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

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Psychotherapy, 1 hour 90837

Psychotherapy is a therapeutic interaction or treatment between a trained professional and a patient. In a 1-hour session, you'll talk about your feelings, thoughts, and behaviors to help identify and manage mental health issues. This process aids in personal growth, healing, and improved well-being.

170 services16 patients

Psychiatric diagnostic evaluation 90791

A psychiatric diagnostic evaluation is a thorough assessment used to identify any mental health conditions you may have. It involves a detailed discussion about your symptoms, thoughts, feelings and behavior patterns. Your medical history and family's mental health history are also considered.

18 services18 patients

Other Providers at the Same Location NPPES 5

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

DR. SHASHONK ILLAM PSY.D.

Clinical Neuropsychologist