DR. MARY LANGSTON DRYDEN PHD
NPI 1811593684
Psychologist in Denver, CO

Active since December 08, 2020PECOS EnrolledAccepts Medicare Assignment
5210 E 6TH AVENUE PKWY, DENVER, CO 80220(817) 229-5123 Get Directions Write a Review

NPPES record last updated: October 20, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Sep 6, 2024, Dec 9, 2020 (2 updates tracked since 2020).

About Dr. Mary Langston Dryden Phd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARY LANGSTON DRYDEN PHD (NPI 1811593684) is an individual psychologist in Denver, Colorado, licensed in Texas (36619) and active in the NPI registry since December 2020. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2019).

NPPES Registry Identity

NPI1811593684
Entity TypeIndividualFemale
Primary Taxonomy103T00000X
Provider Legal NameDR. MARY LANGSTON DRYDENCredential: PHD
Location Address5210 E 6TH AVENUE PKWYDenver, CO 80220-5208
Mailing AddressPo Box 845347Dallas, TX 75284-5347 · (214) 645-0624 · Fax (214) 645-0078
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateDecember 8, 2020
Last NPPES UpdateOctober 20, 20252 updates tracked since enumeration
NPPES CertifiedOctober 20, 2025
NPI 1811593684 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License Licensed in TX · 36619
Definition
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.
5210 E 6TH AVENUE PKWY, Denver, CO 80220

Secondary Practice Locations 2

Location 18390 Lyndon B Johnson Fwy Ste 575Dallas, TX 75243-1188 · Phone (214) 918-1999
Location 24925 Greenville Ave Ste 1050Dallas, TX 75206-4084 · Phone (214) 918-1999 · Fax (972) 850-9452

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Mary Langston Dryden Phd is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1456764570
PECOS Enrollment IDI20210111001822
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Evaluation of psychological test, each additional hour 96131
This service involves additional hours spent on assessing psychological tests. It helps to understand your mental health better, identifying any potential issues or disorders. It's a crucial step in creating an effective treatment plan.
76 services45 patients
Administration of psychological or neuropsychological test, each additional 30 minutes 96137
This procedure involves administering psychological or neuropsychological tests to evaluate your mental functions. Each additional 30 minutes allows for a more in-depth assessment of your cognitive abilities, emotions, and behavior. It's crucial for accurate diagnosis and treatment planning.
47 services45 patients
Psychiatric diagnostic evaluation 90791
A psychiatric diagnostic evaluation is a thorough assessment used to identify any mental health conditions you may have. It involves a detailed discussion about your symptoms, thoughts, feelings and behavior patterns. Your medical history and family's mental health history are also considered.
45 services45 patients
Evaluation of psychological test, first hour 96130
This procedure involves a professional assessing your mental health using standardized tests. It's the initial hour of a process that helps understand your emotional well-being and cognitive abilities. It's completely non-invasive and confidential.
45 services45 patients
Administration of psychological or neuropsychological test, first 30 minutes 96136
This procedure involves a health professional conducting a psychological or neuropsychological test. The first 30 minutes typically involve understanding your mental health or brain function through various assessments. This helps in diagnosing and treating mental health disorders effectively.
45 services45 patients

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mary Dryden's NPI number?

The NPI number for Mary Dryden is 1811593684. It was assigned to this individual provider in the NPPES registry on December 8, 2020.

Where is Mary Dryden located?

Mary Dryden practices at 5210 E 6th Avenue Pkwy, Denver, CO 80220. The listed phone number is (817) 229-5123.

What is Mary Dryden's specialty?

The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.

Is Mary Dryden enrolled in Medicare?

Yes. Mary Dryden is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Mary Dryden accept?

Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, Molina Healthcare, Oscar Insurance Company and UnitedHealthcare list Mary Dryden as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mary Dryden was last updated on October 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.