DR. GREGORY GENE MCGOWAN M.D.
NPI 1073706636
Psychiatry & Neurology - Psychiatry in Patton, CA

Active since August 27, 2007PECOS EnrolledAccepts Medicare Assignment
3102 E HIGHLAND AVE, MEDICAL STAFF OFFICE, PATTON, CA 92369(909) 425-7679(909) 425-6635 Get Directions Write a Review

NPPES record last updated: May 9, 2014. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Gregory Gene Mcgowan M.d. NPPES

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

DR. GREGORY GENE MCGOWAN M.D. (NPI 1073706636) is an individual psychiatry provider in Patton, California, licensed in California (A89593) and active in the NPI registry since August 2007. He is enrolled in Medicare PECOS and is a graduate of Jc Edwards School Of Medicine, Marshall University (2002).

NPPES Registry Identity

NPI1073706636
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. GREGORY GENE MCGOWANCredential: M.D.
Location Address3102 E HIGHLAND AVE, MEDICAL STAFF OFFICEPatton, CA 92369
Mailing Address3102 E. Highland Avenue, Medical Staff OfficePatton, CA 92369 · (909) 425-7679 · Fax (909) 425-6635
Fax(909) 425-6635
Sole ProprietorYes
Medical School CMSJc Edwards School Of Medicine, Marshall UniversityGraduated 2002
Enumeration DateAugust 27, 2007
Last NPPES UpdateMay 9, 2014
✔ NPI 1073706636 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in CA · A89593
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
3102 E HIGHLAND AVE, Patton, CA 92369

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Gregory Gene Mcgowan M.d. 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 ID9234278979
PECOS Enrollment IDI20091209000362
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

2

Medicare enrollment records show Gregory Mcgowan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Psychiatry
400 N PEPPER AVE
Colton, CA 92324
  • Reassigned Medicare billing, California enrollment
  • 208 clinicians in this Medicare group
Child & Adolescent Psychiatry
1225 W 190TH ST STE 280
Gardena, CA 90248
  • Reassigned Medicare billing, California enrollment
  • 375 clinicians in this Medicare group

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 3

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
119 services19 patients
Psychotherapy with evaluation and management visit, 30 minutes 90833
Psychotherapy with evaluation and management is a 30-minute session where a mental health professional talks with you about your concerns and feelings. They assess your mental health, provide support, and manage your treatment plan to help improve your well-being.
76 services16 patients
Psychotherapy with evaluation and management visit, 45 minutes 90836
Psychotherapy with evaluation and management is a 45-minute session where a healthcare provider discusses your mental and emotional health. They assess your current state, manage any issues, and help you develop coping strategies. This service aims to improve your overall well-being.
35 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92369 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$179.42 typical visit price
range $59.60 – $179.42
Typical copayment $44.85 (range $14.90 – $44.85)
Most-billed visit code 99205
Established Patient
$74.08 typical visit price
range $19.37 – $146.42
Typical copayment $18.52 (range $4.84 – $36.60)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

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

Social Worker (Clinical)
3102 E HIGHLAND AVE
PATTON, CA 92369
Psychiatry & Neurology (Psychiatry)
3102 E HIGHLAND AVE
PATTON, CA 92369
Psychologist (Clinical)
3102 E HIGHLAND AVE
PATTON, CA 92369
Clinical Neuropsychologist
3102 E HIGHLAND AVE
PATTON, CA 92369
Psychiatric Hospital
3102 E HIGHLAND AVE
PATTON, CA 92369
Psychiatry & Neurology (Psychiatry)
3102 E HIGHLAND AVE
PATTON, CA 92369
Psychologist
3102 E HIGHLAND AVE
PATTON, CA 92369
Psychologist (Clinical)
3102 E HIGHLAND AVE
PATTON, CA 92369

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 Gregory Mcgowan's NPI number?

The NPI number for Gregory Mcgowan is 1073706636. It was assigned to this individual provider in the NPPES registry on August 27, 2007.

Where is Gregory Mcgowan located?

Gregory Mcgowan practices at 3102 E Highland Ave Medical Staff Office, Patton, CA 92369. The listed phone number is (909) 425-7679.

What is Gregory Mcgowan's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Gregory Mcgowan enrolled in Medicare?

Yes. Gregory Mcgowan 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.

Which organizations bill Medicare for Gregory Mcgowan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Mcgowan reassigns Medicare benefits to 2 organizations: Cep America - Psychiatry PC (Colton, CA) and Ehab Yacoub MD Inc. (Gardena, CA). 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 Gregory Mcgowan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Gregory Mcgowan was last updated on May 9, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years 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.