DIANA R TERRILL PHD
NPI 1649494014
Psychologist in Towson, MD

NPI Status: Active since April 13, 2007

Contact Information

660 KENILWORTH DR
SUITE 101
TOWSON, MD
ZIP 21204
Phone: (410) 830-9568
Fax: (410) 583-1127

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  • Individual
  • Female
  • Psychologist
  • PECOS Enrolled
  • Opted-Out Medicare

About DIANA TERRILL

This page provides the complete NPI Profile along with additional information for Diana Terrill, a provider established in Towson, Maryland with a medical specialization in Psychologist. The healthcare provider is registered in the NPI registry with number 1649494014 assigned on April 2007. The practitioner's primary taxonomy code is 103T00000X with license number 4149 (MD). The provider is registered as an individual and her NPI record was last updated 19 years ago.

NPI
1649494014
Provider Name
DIANA R TERRILL PHD
Gender
Female
Entity Type
Individual
Location Address
660 KENILWORTH DR SUITE 101 TOWSON, MD 21204
Location Phone
(410) 830-9568
Location Fax
(410) 583-1127
Mailing Address
660 KENILWORTH DR SUITE 101 TOWSON, MD 21204
Mailing Phone
(410) 830-9568
Mailing Fax
(410) 583-1127
Is Sole Proprietor?
No
Enumeration Date
04-13-2007
Last Update Date
07-08-2007
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A psychologist like Diana Terrill 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. Diana Terrill opted out of Medicare effective on 08-09-2019 until 08-09-2027. 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 but is permitted to order and refer services to other healthcare providers.

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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.
4149
License State
MD
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.

Medicare Participation & PECOS Enrollment Status

Diana Terrill 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

  • Opted-Out of Medicare? Yes

  • Opt-Out Effective Date: 08-09-2019

  • Opt-Out End Date: 08-09-2027

  • Eligible to Order and Refer? 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

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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 1649494014, we treat the final digit (4) 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 76. The final step is to find the difference between that total and the next multiple of ten (80 - 76 = 4).

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
6
Unchanged
Pos 3
4
Doubled → 8
Pos 4
9
Unchanged
Pos 5
4
Doubled → 8
Pos 6
9
Unchanged
Pos 7
4
Doubled → 8
Pos 8
0
Unchanged
Pos 9
1
Doubled → 2
Check
4
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 4 → 8 4 → 8 4 → 8 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 8 + 9 + 8 + 9 + 8 + 0 + 2 + 24 = 76

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

The next multiple of ten after 76 is 80. The difference is the calculated check digit.

80 - 76 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1649494014.

Other Providers at the Same Location


The following 17 providers are registered at the same or a nearby location.

Physical Medicine & Rehabilitation (Pain Medicine)
660 KENILWORTH DR, SUITE 200
TOWSON, MD 21204
Psychologist (Clinical)
660 KENILWORTH DR, SUITE 101
TOWSON, MD 21204
Psychologist (Clinical)
660 KENILWORTH DR, SUITE 101
TOWSON, MD 21204
Dentist (Oral and Maxillofacial Surgery)
660 KENILWORTH DR
TOWSON, MD 21204
Psychologist (Clinical)
660 KENILWORTH DR, SUITE 101
TOWSON, MD 21204
Dentist (Periodontics)
660 KENILWORTH DR, SUITE 103
TOWSON, MD 21204
Clinic/Center (Medical Specialty)
660 KENILWORTH DR, STE 200
TOWSON, MD 21204
Dentist
660 KENILWORTH DR, SUIT 103
TOWSON, MD 21204
Dentist (Periodontics)
660 KENILWORTH DR, SUITE # 103
TOWSON, MD 21204
Dentist
660 KENILWORTH DR, #205
TOWSON, MD 21204
Physical Therapist
660 KENILWORTH DR, SUITE 102
TOWSON, MD 21204
Clinic/Center (Medical Specialty)
660 KENILWORTH DR, SUITE 200
TOWSON, MD 21204
Psychologist (Clinical)
660 KENILWORTH DR, SUITE 101
BALTIMORE, MD 21204
Social Worker (Clinical)
660 KENILWORTH DR, SUITE 101
TOWSON, MD 21204
Physical Therapist (Orthopedic)
660 KENILWORTH DR, SUITE 102
TOWSON, MD 21204
Internal Medicine (Sleep Medicine)
660 KENILWORTH DR, SUITE 203,
TOWSON, MD 21204
Dentist (Prosthodontics)
660 KENILWORTH DR, SUITE 103
TOWSON, MD 21204

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1649494014, enumerated as an "individual" on April 13, 2007.

The provider is located at 660 KENILWORTH DR SUITE 101 TOWSON, MD 21204 and the phone number is (410) 830-9568.

Psychologist with taxonomy code 103T00000X.