DR. ALEXANDRA HALEY LYON PSY.D.
NPI 1649939380
Psychologist in San Diego, CA
- Individual
- Female
- Psychologist
- Opted-Out Medicare
About ALEXANDRA LYON
This page provides the complete NPI Profile along with additional information for Alexandra Lyon, a provider established in San Diego, California with a medical specialization in Psychologist. The healthcare provider is registered in the NPI registry with number 1649939380 assigned on December 2021. The practitioner's primary taxonomy code is 103T00000X with license number 33043 (CA). The provider is registered as an individual and her NPI record was last updated March 2026.
- NPI
- 1649939380 Verify this NPI
- Provider Name
- DR. ALEXANDRA HALEY LYON PSY.D.
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 8334 CLAIREMONT MESA BLVD STE 101 SAN DIEGO, CA 92111
- Location Phone
- (619) 992-5818
- Mailing Address
- 8334 CLAIREMONT MESA BLVD STE 101 SAN DIEGO, CA 92111
- Mailing Phone
- (619) 992-5818
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 12-09-2021
- Last Update Date
- 03-19-2026
- Code Navigator
A psychologist like Alexandra Lyon studies cognitive, emotional, social processes and behavior by observing, interpreting, and recording how people relate to one another and to their environments. Psychologists gather information and evaluate behavior through controlled laboratory experiments, psychoanalysis, psychotherapy or through personality, performance, aptitude, or intelligence tests, and use this information when testing theories in their research or when treating patients.
The provider doesn't accept Medicare and has signed an affidavit to be excluded from the Medicare program. If you are a Medicare beneficiary this means a provider can charge whatever they want for services rendered but must follow certain rules to do so. Alexandra Lyon opted out of Medicare effective on 12-09-2021 until 12-09-2027. Opt out periods last for two years and cannot be terminated unless the provider is opting out for the very first time and the affidavit is terminated no later than 90 days after the opt out effective date. Opt-out affidavits might renew automatically renew every two years. The provider opted out of Medicare and cannot order and refer services to other healthcare providers.
Location Map
Specialty - Primary Taxonomy
The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.
- Classification
Psychologist
- Taxonomy Code
- 103T00000X
- Type
- Behavioral Health & Social Service Providers
- License No.
- 33043
- License State
- CA
- Taxonomy Description
- 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.
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Additional Identifiers
The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.
| Identifier | Type / Code | Identifier State | Identifier Issuer |
|---|---|---|---|
| 33043 | OTHER (01) | CA | CA BOARD OF PSYCHOLOGY LICENSE NUMBER |
Medicare Participation & PECOS Enrollment Status
What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.
Opted-Out of Medicare? Yes
Opt-Out Effective Date: 12-09-2021
Opt-Out End Date: 12-09-2027
Eligible to Order and Refer? No
Reviews for DR. ALEXANDRA HALEY LYON PSY.D.
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Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1649939380, enumerated as an "individual" on December 09, 2021.
The provider is located at 8334 CLAIREMONT MESA BLVD STE 101 SAN DIEGO, CA 92111 and the phone number is (619) 992-5818.
Psychologist with taxonomy code 103T00000X.
The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.
