DR. DORIBETH MARIA ADAMS TARDILLO PSY.D.
NPI 1720330681
Psychologist in Rolling Hills Estates, CA

NPI Status: Active since October 02, 2012

Contact Information

609 DEEP VALLEY DR STE 200
ROLLING HILLS ESTATES, CA
ZIP 90274
Phone: (323) 494-3762
Fax: (213) 714-3464

NPI Profile Information
Primary Taxonomy
Secondary Taxonomies
Medicare Participation & PECOS Status
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Female
Psychologist
PECOS Enrolled

About DORIBETH ADAMS TARDILLO

This page provides the complete NPI Profile along with additional information for Doribeth Adams Tardillo, a provider established in Rolling Hills Estates, California with a medical specialization in Psychologist. The healthcare provider is registered in the NPI registry with number 1720330681 assigned on October 2012. The practitioner's primary taxonomy code is 103T00000X with license number PSY33087 (CA). The provider is registered as an individual and her NPI record was last updated January 2026.

NPI: 1720330681
Provider Name: DR. DORIBETH MARIA ADAMS TARDILLO PSY.D.
Gender: Female
Entity Type: Individual
Location Address: 609 DEEP VALLEY DR STE 200 ROLLING HILLS ESTATES, CA 90274
Location Phone: (323) 494-3762
Location Fax: (213) 714-3464
Mailing Address: 609 DEEP VALLEY DR STE 200 ROLLING HILLS ESTATES, CA 90274
Mailing Phone: (323) 494-3762
Mailing Fax: (213) 714-3464
Is Sole Proprietor?: No
Enumeration Date: 10-02-2012
Last Update Date: 01-28-2026
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A psychologist like Doribeth Adams Tardillo 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.: PSY33087
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.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No.	Taxonomy Code	Type	Classification / Specialization	License No. (State)
1	103TC0700X	Behavioral Health & Social Service Providers	Psychologist Clinical	PSY33087 (CA)
2	106H00000X	Behavioral Health & Social Service Providers	Marriage & Family Therapist	LMFT95947 (CA)

Medicare Participation & PECOS Enrollment Status

Doribeth Adams Tardillo is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging and Durable Medical Equipment (DME).

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.

Is the provider registered in PECOS? Yes
Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes
Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes
Eligible to Order or Refer a Home Health Agency (HHA): No
Eligible to Order or Refer Power Mobility Devices: No

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 1720330681, we treat the final digit (1) 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 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 1).

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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 4

Pos 4

Unchanged

Pos 5

Doubled → 6

Pos 6

Unchanged

Pos 7

Doubled → 0

Pos 8

Unchanged

Pos 9

Doubled → 16 → 1 + 6

Check

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 2 → 4 3 → 6 0 → 0 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 4 + 0 + 6 + 3 + 0 + 6 + 1 + 6 + 24 = 59

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

The next multiple of ten after 59 is 60. The difference is the calculated check digit.

60 - 59 = 1

This NPI is valid

The calculated check digit is 1, which matches the last digit of 1720330681.