DR. DAVID PATRICK GENNIS PSY.D., LMFT
NPI 1558439935
Marriage & Family Therapist in San Bernardino, CA

Q: What is David Gennis's NPI number?

The NPI number for David Gennis is 1558439935. It was assigned to this individual provider in the NPPES registry on December 1, 2006.

Q: What is David Gennis's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

Q: When was this NPI record last updated?

The NPPES record for David Gennis was last updated on July 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.

Active since December 01, 2006PECOS Enrolled

441 MACKAY DR, SAN BERNARDINO, CA 92408(909) 279-3711(909) 267-6087 Get Directions Write a Review

NPPES record last updated: July 14, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Jul 14, 2026, Sep 22, 2016 (2 updates tracked since 2016).

On this page

About Dr. David Patrick Gennis Psy.d., Lmft NPPES

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

DR. DAVID PATRICK GENNIS PSY.D., LMFT (NPI 1558439935) is an individual marriage & family therapist in San Bernardino, California, licensed in Nevada (#01166) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Las Vegas, and is a graduate of Other (2010).

NPPES Registry Identity

NPI1558439935

Entity TypeIndividualMale

Primary Taxonomy106H00000X

Provider Legal NameDR. DAVID PATRICK GENNISCredential: PSY.D., LMFT

Location Address441 MACKAY DRSan Bernardino, CA 92408-3230

Mailing Address3225 Perching Bird LnNorth Las Vegas, NV 89084-2358 · (480) 268-5723

Phone(909) 279-3711

Fax(909) 267-6087

Sole ProprietorNo

Medical School CMSOtherGraduated 2010

Enumeration DateDecember 1, 2006

Last NPPES UpdateJuly 14, 20262 updates tracked since enumeration

NPPES CertifiedJuly 14, 2026

✔ NPI 1558439935 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyMarriage & Family TherapistBehavioral Health & Social Service Providers

Taxonomy Code106H00000X

Licenses✔ Licensed in NV · #01166✔ Licensed in CA · MFC46820

Definition

A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups.

441 MACKAY DR, San Bernardino, CA 92408

Open in Google Maps ↗

Secondary Practice Location 1

Location 15915 S Rainbow Blvd Ste 105Las Vegas, NV 89118-2558 · Phone (702) 209-0370

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Molina Healthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. David Patrick Gennis Psy.d., Lmft is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID5496073793

PECOS Enrollment IDI20150417000075

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.

Medicare Billing Reassignments

Medicare enrollment records show David Gennis reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Great Mind Family Counseling And Skill Building Center, Inc.

Same address

Primary Care

441 MACKAY DR
San Bernardino, CA 92408

Reassigned Medicare billing, California enrollment

NPI 1902603509 (909) 279-3711

Advanced Behavioral And Mental Healthcare Services, Inc.

176 mi

Community/Behavioral Health

8120 DOLCE FLORE AVE
Las Vegas, NV 89178

Reassigned Medicare billing, Nevada enrollment
6 clinicians in this Medicare group

NPI 1104313477 (702) 285-1185

Deepa Hasija MD

187 mi

Child & Adolescent Psychiatry

4055 SPENCER ST STE 106
Las Vegas, NV 89119

Reassigned Medicare billing, California and Nevada enrollments
8 clinicians in this Medicare group

NPI 1841721917 (702) 582-8705

Great Mind Counseling And Wellness Center LLC

188 mi

Psychiatry

1600 E DESERT INN RD STE 104
Las Vegas, NV 89169

Reassigned Medicare billing, Nevada enrollment
5 clinicians in this Medicare group

NPI 1295211126 (702) 208-2194

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 12

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.

Treatment of behavior impacting health, initial 30 minutes 96158

This service involves a healthcare professional working with you for 30 minutes to address behaviors that are negatively affecting your health. They will help you understand and modify these behaviors, improving your overall well-being.

1,930 services55 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.

858 services35 patients

Biofeedback training 90901

Biofeedback training is a technique that helps you learn to control certain body functions, like heart rate or blood pressure. Through this, you can improve your health by gaining more control over these functions. It's often used to manage stress, anxiety, or chronic pain.

666 services34 patients

Therapy procedure for a range of mental processes, initial 15 minutes 97129

This therapy session, lasting 15 minutes, focuses on improving your mental processes. It's an initial step towards understanding your mental health needs. The therapist will engage in conversation, listen to your concerns, and help identify areas for improvement.

390 services44 patients

Treatment of behavior impacting health in group setting, initial 30 minutes 96164

This is a group therapy session focusing on behaviors that affect health. In the initial 30 minutes, individuals share experiences and learn strategies to manage these behaviors. It's a supportive, confidential environment for personal growth and change.

229 services40 patients

Psychotherapy, 1 hour 90837

Psychotherapy is a therapeutic interaction or treatment between a trained professional and a patient. In a 1-hour session, you'll talk about your feelings, thoughts, and behaviors to help identify and manage mental health issues. This process aids in personal growth, healing, and improved well-being.

200 services15 patients

Care management services for behavioral health conditions, 20 minutes or more clinical staff time directed by health care professional 99484

Care management for behavioral health involves a healthcare professional directing clinical staff to provide you with support for 20 minutes or more. This service can include planning your care, coordinating services, and managing your health conditions to improve your overall well-being.

61 services38 patients

Electronic analysis of implanted brain, spinal cord, or peripheral neurostimulator generator with brain stimulator programming, first 15 minutes with qualified health professional 95983

This procedure involves a medical professional using electronic equipment to analyze and adjust your implanted neurostimulator, which helps manage nerve activity in your brain, spinal cord, or peripheral nerves. The process typically takes 15 minutes.

48 services22 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.

30 services27 patients

Measurement of brain wave activity (eeg) with drug or activity stimulation 95954

An EEG, or electroencephalogram, records brain activity using small sensors attached to your scalp. Sometimes, a medication or specific activity may be introduced to observe how it influences your brain waves. This can help diagnose or monitor certain neurological conditions.

26 services21 patients

Online digital evaluation and management service for an established patient for up to 7 days, total time 5-10 minutes 99421

This service involves a week-long digital assessment of your health status. It's conducted online by your healthcare provider, focusing on managing your existing health condition. The process takes 5-10 minutes of your time daily, ensuring optimal health management.

26 services23 patients

Advance care planning, first 30 minutes 99497

Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.

23 services21 patients

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

GREAT MIND COUNSELING AND SKILL BUILDING CENTER LLC

Clinic/Center (Multi-Specialty)

441 MACKAY DR
SAN BERNARDINO, CA 92408

San Bernardino County (702) 589-0701

GREAT MIND FAMILY COUNSELING AND SKILL BUILDING CENTER, INC.

Clinic/Center (Primary Care)

441 MACKAY DR
SAN BERNARDINO, CA 92408

San Bernardino County (909) 279-3711

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 David Gennis's NPI number?

The NPI number for David Gennis is 1558439935. It was assigned to this individual provider in the NPPES registry on December 1, 2006.

Where is David Gennis located?

David Gennis practices at 441 Mackay Dr, San Bernardino, CA 92408. The listed phone number is (909) 279-3711.

What is David Gennis's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

Is David Gennis enrolled in Medicare?

Yes. David Gennis is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for David Gennis's services?

According to the CMS Revalidation Reassignment List (October 2026 release), David Gennis reassigns Medicare benefits to 4 organizations: Great Mind Family Counseling And Skill Building Center, Inc. (San Bernardino, CA), Advanced Behavioral And Mental Healthcare Services, Inc. (Las Vegas, NV), Deepa Hasija MD (Las Vegas, NV) and Great Mind Counseling And Wellness Center LLC (Las Vegas, NV). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for David Gennis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does David Gennis accept?

Health plans from Molina Healthcare list David Gennis 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 David Gennis was last updated on July 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.