DR. BARBARA ZELDA MAZER PH.D.
NPI 1104134436
Psychologist in Mc Lean, VA

NPI Status: Active since September 21, 2010

Contact Information

6862 ELM ST
SUITE 230
MC LEAN, VA
ZIP 22101
Phone: (301) 233-8179
Fax: (301) 770-6768

Get Directions Reviews

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

About BARBARA MAZER

This page provides the complete NPI Profile along with additional information for Barbara Mazer, a provider established in Mc Lean, Virginia with a medical specialization in Psychologist. The healthcare provider is registered in the NPI registry with number 1104134436 assigned on September 2010. The practitioner's primary taxonomy code is 103T00000X with license number 0810004273 (VA). The provider is registered as an individual and her NPI record was last updated 15 years ago.

NPI
1104134436
Provider Name
DR. BARBARA ZELDA MAZER PH.D.
Gender
Female
Entity Type
Individual
Location Address
6862 ELM ST SUITE 230 MC LEAN, VA 22101
Location Phone
(301) 233-8179
Location Fax
(301) 770-6768
Mailing Address
6862 ELM ST SUITE 230 MC LEAN, VA 22101
Mailing Phone
(301) 233-8179
Mailing Fax
(301) 770-6768
Is Sole Proprietor?
Yes
Enumeration Date
09-21-2010
Last Update Date
09-21-2010
Code Navigator

A psychologist like Barbara Mazer 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. Barbara Mazer opted out of Medicare effective on 10-23-2019 until 10-23-2025. 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.

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.
0810004273
License State
VA
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

Barbara Mazer 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: 10-23-2019

  • Opt-Out End Date: 10-23-2025

  • 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

Reviews for DR. BARBARA ZELDA MAZER PH.D.

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NPI Validation Check Digit Calculation


The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1104134436
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
210423846
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 1 + 0 + 4 + 2 + 3 + 8 + 4 + 6 + 24 = 54
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
60 - 54 = 66

The NPI number 1104134436 is valid because the calculated check digit 6 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


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

NPI Name / Type Taxonomy Address
1750381422DOUGLAS AVERY & ASSOCIATES LTD
Organization
Clinic/Center (Physical Therapy)6862 ELM ST SUITE 105
MC LEAN, VA 22101
(703) 556-7788
1962462747 GREGORY R GARMAN PT
Individual
Physical Therapist6862 ELM ST SUITE 105
MC LEAN, VA 22101
(703) 556-7788
1134165954DR. KATHRYN A. LEMMERMAN M.D.
Individual
Family Medicine6862 ELM ST SUITE 720
MC LEAN, VA 22101
(703) 635-2158
1720124670DR. ADRIENNE JOANN CLAMP MD
Individual
Family Medicine6862 ELM ST SUITE 720
MC LEAN, VA 22101
(703) 635-2158
1942338298DR. BRENNA L. CHIRBY PSY.D.
Individual
Psychologist (Clinical)6862 ELM ST SUITE 230
MCLEAN, VA 22101
(703) 550-4323
1104025758DR. MEGAN BARTSCH WILLEMS M.D.
Individual
Psychiatry & Neurology (Child & Adolescent Psychiatry)6862 ELM ST SUITE 230
MC LEAN, VA 22101
(703) 942-6101
1669620217 VIRGINIA JONES MOORE LPC, PSYD
Individual
Counselor (Professional)6862 ELM ST
MC LEAN, VA 22101
(703) 550-4355
1316196777DR. MELISSA ANN YUNES AU.D.
Individual
Audiologist-Hearing Aid Fitter6862 ELM ST SUITE 120
MC LEAN, VA 22101
(703) 748-3300
1073845814WELL BEING-BEING WELL, LLC
Organization
Clinic/Center (Primary Care)6862 ELM ST SUITE 720
MC LEAN, VA 22101
(703) 635-2158
1881908697DR. WENDY BETH BERGER PH.D.
Individual
Psychologist6862 ELM ST SUITE 230
MC LEAN, VA 22101
(703) 975-6431
1114025376DR. KALEEN KITAY M.D.
Individual
Internal Medicine6862 ELM ST SUITE 700
MC LEAN, VA 22101
(703) 288-3750
1750635330DR. ELIZABETH TIERNEY CONRAD MD
Individual
Family Medicine6862 ELM ST SUITE 720
MC LEAN, VA 22101
(703) 635-2158
1497153993BALANCE SPORT & SPINE LLC
Organization
Chiropractor6862 ELM ST SUITE 600
MC LEAN, VA 22101
(202) 674-0644
1659509198DR. KRISTEN JACKSON PSYD
Individual
Psychologist (Clinical)6862 ELM ST 205
MC LEAN, VA 22101
(914) 497-8212
1629117155DR. GINA M CROVATO AU.D.
Individual
Audiologist-Hearing Aid Fitter6862 ELM ST SUITE 120
MCLEAN, VA 22101
(703) 748-3300
1326169418HEARING ASSOCIATES OF NORTHERN VIRGINIA LLC
Organization
Audiologist-Hearing Aid Fitter6862 ELM ST SUITE 120
MCLEAN, VA 22101
(703) 748-3300
1356576771 RACHEL NGERNMANEEPOTHONG M.D.
Individual
Internal Medicine6862 ELM ST SUITE 600
MC LEAN, VA 22101
(703) 992-0649
1538126842DR. CAROLINE CAINE M.D.
Individual
Internal Medicine6862 ELM ST
MC LEAN, VA 22101
(703) 992-0649
1891079208 KATHRYN ANNE JOHNSON DPT
Individual
Physical Therapist6862 ELM ST SUITE 105
MC LEAN, VA 22101
(703) 556-7788
1518720002 ARIELLE RONDON LPC
Individual
Counselor (Professional)6862 ELM ST
MC LEAN, VA 22101
(703) 677-8243

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1104134436, enumerated in the NPI registry as an "individual" on September 21, 2010

The provider is located at 6862 Elm St Suite 230 Mc Lean, Va 22101 and the phone number is (301) 233-8179

The provider's speciality is Psychologist with taxonomy code 103T00000X

Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging and Durable Medical Equipment (DME).

No, the provider signed an affidavit on October 23, 2019 to opt-out of the Medicare program. The provider is excluded from the Medicare program until October 23, 2025.

This NPI record was last updated on September 21, 2010. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
NPI Profile data is regularly updated with the latest NPI registry information, if you would like to update or remove your NPI Profile in this website please contact us.