Psychologist | Clinical Psychology

Dr. John A Lang, PHD

4200 18th St, Suite 104, San Francisco, California, 94114-2470

About Dr. John A Lang

Dr. John A Lang is a psychologist based in San Francisco, California who is specialized in Clinical Psychology. Active license number of Dr. John A Lang is PSY 20276 for Psychology in California. His current practice location is 4200 18th St, Suite 104, San Francisco. Patients can reach him at 415-252-7522 or can fax him at 415-252-7522. Dr. John A Lang is PHD in Clinical Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1588756704.

Dr. John A Lang is a mental health professional with highly specialized training in the diagnosis and psychological treatment of mental, behavioral and emotional illnesses, including obsessive-compulsive disorder (OCD). His main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that he can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Practice Information

Dr. John A Lang speciality, credentials, practice address, contact phone number and fax are as below. Patients can call on the below given phone number for appointment.

Provider Name Dr. John A Lang
Specialization Clinical Psychology
Credentials PHD
Gender Male
Practice Address: 4200 18th St, Suite 104
San Francisco, CA - 94114-2470
Fax 415-252-7522

Professional Identification Codes

NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS). NPI details are as mentioned below.

NPI Number1588756704
NPI Enumeration Date: 28 Sep, 2006
NPI Last Update On: 03 May, 2013

Medical Licenses:

Healthcare professionals can hold one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Dr. John A Lang are as mentioned below.

License NumberSpecializationStateStatus
PSY 20276Psychology CaliforniaPrimary
PSY 20276Clinical Psychology CaliforniaSecondary
PSY 20276Forensic Psychology CaliforniaSecondary

Other Medical Identifiers

Other legacy medical identifiers associated with Dr. John A Lang such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
IdentifierTypeStateIssuer
PSY 20276OtherCaliforniaSTATE LICENSE

Mailing Address

Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned Practice address.

Dr. John A Lang
4200 18th St, Suite 104
San Francisco, CA - 94114-2470
Phone: 415-252-7522
Fax: 415-252-7522

Book an Appointment with Dr. John A Lang

To schedule an appointment, contact Dr. John A Lang at 4200 18th St, Suite 104, San Francisco, California or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. John A Lang:

Dr. John A Lang is a psychologist specializing in Psychology. He is specialized in psychological testing and evaluating or assessing patient's personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning. Accordingly, he performs counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy. He can diagnose and treat 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 by psycheducational evaluation, therapy, remediation, and consultation.

Yes, Dr. John A Lang is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.

Dr. John A Lang practices at 4200 18th St, Suite 104, San Francisco, California, 94114-2470.

To schedule an appointment with Dr. John A Lang, please contact the office at 415-252-7522.

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**Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 14 September, 2026.