AYESHA CHATTERJI SUJAN
NPI 1275469223
Psychologist in Menlo Park, CA

NPI Status: Active since June 18, 2026

Contact Information

321 MIDDLEFIELD RD
MENLO PARK, CA
ZIP 94025
Phone: (650) 497-8977

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  • Individual
  • Female
  • Psychologist

About AYESHA SUJAN

This page provides the complete NPI Profile along with additional information for Ayesha Sujan, a provider established in Menlo Park, California with a medical specialization in Psychologist. The healthcare provider is registered in the NPI registry with number 1275469223 assigned on June 2026. The practitioner's primary taxonomy code is 103T00000X with license number PSY35249 (CA). The provider is registered as an individual and her NPI record was last updated June 2026.

NPI
1275469223
Provider Name
AYESHA CHATTERJI SUJAN
Gender
Female
Entity Type
Individual
Location Address
321 MIDDLEFIELD RD MENLO PARK, CA 94025
Location Phone
(650) 497-8977
Mailing Address
3145 PORTER DR PALO ALTO, CA 94304
Is Sole Proprietor?
No
Enumeration Date
06-18-2026
Last Update Date
06-18-2026
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A psychologist like Ayesha Sujan 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.

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.
PSY35249
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.

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1275469223, we treat the final digit (3) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 3).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
2
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
5
Unchanged
Pos 5
4
Doubled → 8
Pos 6
6
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
2
Unchanged
Pos 9
2
Doubled → 4
Check
3
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 7 → 14 → 5 4 → 8 9 → 18 → 9 2 → 4

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 2 + 1 + 4 + 5 + 8 + 6 + 1 + 8 + 2 + 4 + 24 = 67

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 67 is 70. The difference is the calculated check digit.

70 - 67 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1275469223.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Nurse Practitioner (Obstetrics & Gynecology)
321 MIDDLEFIELD RD
MENLO PARK, CA 94025
Dermatology
321 MIDDLEFIELD RD, STE #245
MENLO PARK, CA 94025
Family Medicine
321 MIDDLEFIELD RD
MENLO PARK, CA 94025
Nurse Practitioner
321 MIDDLEFIELD RD
MENLO PARK, CA 94025
Occupational Therapist
321 MIDDLEFIELD RD, SUITE 130
MENLO PARK, CA 94025
General Acute Care Hospital (Children)
321 MIDDLEFIELD RD, SUITE 130
MENLO PARK, CA 94025
Physical Therapist
321 MIDDLEFIELD RD, SUITE 130
MENLO PARK, CA 94025
Physician Assistant (Medical)
321 MIDDLEFIELD RD, SUITE 245
MENLO PARK, CA 94025
Obstetrics & Gynecology
321 MIDDLEFIELD RD, SUITE 165
MENLO PARK, CA 94025
Physical Therapy Assistant
321 MIDDLEFIELD RD
MENLO PARK, CA 94025
Occupational Therapist (Pediatrics)
321 MIDDLEFIELD RD
MENLO PARK, CA 94025
Social Worker
321 MIDDLEFIELD RD
MENLO PARK, CA 94025
Dermatology (MOHS-Micrographic Surgery)
321 MIDDLEFIELD RD, STE #245
MENLO PARK, CA 94025
Speech-Language Pathologist
321 MIDDLEFIELD RD
MENLO PARK, CA 94025
Physical Therapist
321 MIDDLEFIELD RD
MENLO PARK, CA 94025
Audiologist
321 MIDDLEFIELD RD
MENLO PARK, CA 94025
Dermatology
321 MIDDLEFIELD RD
MENLO PARK, CA 94025
Orthopaedic Surgery (Sports Medicine)
321 MIDDLEFIELD RD
MENLO PARK, CA 94025
Otolaryngology
321 MIDDLEFIELD RD
MENLO PARK, CA 94025
Physical Therapist (Pediatrics)
321 MIDDLEFIELD RD
MENLO PARK, CA 94025

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1275469223, enumerated as an "individual" on June 18, 2026.

The provider is located at 321 MIDDLEFIELD RD MENLO PARK, CA 94025 and the phone number is (650) 497-8977.

Psychologist with taxonomy code 103T00000X.