Dr. Gregory Gene McGowan, MD
- Medicare services, 2024
- 230
- Medicare patients, 2024
- 24
- Part D claims, 2024
- 58
- Industry payments
- $91
- Medical groups
- 2
- Practice address
- 1225 W 190th St, Gardena, CA 90248
- Practice phone
- Call (310) 515-8113
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Brain Health Usa
Gardena, California
Find Dr. McGowan's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Gregory Gene McGowan is a psychiatrist in Gardena, California
Dr. McGowan practices at Brain Health Usa in Gardena, California.
Dr. McGowan's NPI, 1073706636, was assigned on August 27, 2007. Dr. McGowan graduated from Marshall University Joan C. Edwards School of Medicine in 2002. Dr. McGowan holds California license A89593.
- NPI
- 1073706636NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9234278979
- NPI enumeration date
- August 27, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (310) 515-8113
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregory Gene McGowan practices at Brain Health Usa in Gardena, California
Dr. McGowan's primary practice is Brain Health Usa, at 1225 W 190th St, Gardena, CA 90248 in Los Angeles County. The practice phone is (310) 515-8113.
- Brain Health Usa1225 W 190th St, Gardena, CA 90248 · Los Angeles CountyPhone(310) 515-8113
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Gregory Gene McGowan is affiliated with 1 site of care and 2 medical groups
Dr. McGowan's primary practice is Brain Health Usa in Gardena, California. The medical group on file is Brain Health USA. Dmand AI also links Dr. McGowan to 1 more medical group, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Gregory Gene McGowan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. McGowan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Brain Health Usa | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregory Gene McGowan is one of 6,803 psychiatrists in California
Psychiatry is Dr. McGowan's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. McGowan is board certified in psychiatry by the American Board of Psychiatry and Neurology. Dr. McGowan is licensed in California.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
Clinical focus
Dmand AI lists ADHD, anxiety, bipolar disorder, depression and insomnia among the conditions Dr. McGowan treats.
Psychiatrists near Dr. McGowan
Counts of psychiatrists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Gregory Gene McGowan billed Medicare for 230 services in 2024
CMS data shows 230 Medicare services from Dr. McGowan across 3 procedure codes in 2024, for 24 Medicare patients. Medicare paid $18,373 for them. Every service was in an office.
Dr. McGowan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1052024: 11913%
- Tests and treatments
- 2023: 1092024: 1112%
Dr. McGowan compared with the California median for psychiatrists, 2024
- Dr. McGowan
- California median
- Medicare services
- 230vs 11993% above
- Medicare patients
- 24vs 4141% below
- Part D claims
- 13vs 14491% below
Medians across 6,809 psychiatrists in California with Dmand AI profiles that report each measure.
Dr. McGowan's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. McGowan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. McGowan and other psychiatrists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory Gene McGowan treated 24 Medicare patients in 2024, average age 54
CMS counts 24 Medicare patients who saw Dr. McGowan in 2024. 75% of them have anxiety, and 75% have mood disorders. Their average risk score is 0.85, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. McGowan's median patient age at 36, with 60% women.
Chronic conditions among Dr. McGowan's Medicare patients, 2024
- Anxiety75%
- Mood disorders75%
- Depression63%
- High cholesterol58%
- High blood pressure54%
- Arthritis50%
Share of Medicare patients with each condition. A patient can have several.
Dr. McGowan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 36
Patient panel by sex, all payers
- Women60%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gregory Gene McGowan wrote 58 Medicare Part D claims in 2024
In 2024, Dr. McGowan wrote 58 Medicare Part D claims. 95% of them were for generic drugs. CMS names the drug for 13 of them, across 1 drug with 11 or more claims each, at $19 in total drug cost. In 2023, CMS named 24 claims across 2 drugs.
Dr. McGowan's Part D claims by kind of drug, 2024
- Generic55 claims95%
- Brand-name and other3 claims5%
Dr. McGowan's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 242024: 1346%
Drugs named by CMS: 1 in 2024, 2 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Gregory Gene McGowan offers telehealth to Medicare patients
Dr. McGowan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. McGowan as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Gregory Gene McGowan received $91 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. McGowan from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Otsuka America Pharmaceutical, Inc. paid the most, $91.
Companies that paid Dr. McGowan the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gregory Gene McGowan graduated from Marshall University Joan C. Edwards School of Medicine
Dr. McGowan graduated from Marshall University Joan C. Edwards School of Medicine in 2002.
- Medical school
- Board certified in psychiatry
Source: Dmand AI Professional Profile Data
Dr. Gregory Gene McGowan accepts plans from 10 insurance carriers
Dr. McGowan is in network with 10 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- Cigna
- HCSC
- Molina
- Regence Health Plans
- CMS Medicare
- +2 more carriersWith a free account
Plan types Dr. McGowan accepts, by number of carriers
- Medicare9
- PPO6
- HMO4
- POS2
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Gregory Gene McGowan's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Gregory Gene McGowan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Gregory Gene McGowan's NPI number?
Dr. Gregory Gene McGowan's NPI number is 1073706636. It was assigned on August 27, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory Gene McGowan?
Dr. Gregory Gene McGowan is a psychiatrist in Gardena, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Gregory Gene McGowan practice?
Dr. McGowan practices at 1225 W 190th St, Gardena, CA 90248. Dr. McGowan's primary practice is Brain Health Usa in Gardena, California. Dmand AI also links Dr. McGowan to 1 medical group.
What is Dr. Gregory Gene McGowan's office phone number?
The practice phone on file for Dr. McGowan is (310) 515-8113.
What is Dr. Gregory Gene McGowan's medical license number?
Dr. McGowan holds California license A89593.
What medical group is Dr. Gregory Gene McGowan part of?
Dr. McGowan is linked to Brain Health USA. Dmand AI links Dr. McGowan to 1 more medical group.
Does Dr. Gregory Gene McGowan accept Medicare?
Yes. CMS data shows Dr. McGowan billed Medicare for 230 services in 2024, and Dr. McGowan accepts Medicare assignment.
Does Dr. Gregory Gene McGowan offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. McGowan as offering telehealth services.
How many Medicare patients does Dr. Gregory Gene McGowan see?
CMS counts 24 Medicare patients who saw Dr. McGowan in 2024, with an average age of 54.
Is Dr. Gregory Gene McGowan board certified?
Yes. Dr. McGowan is board certified in psychiatry by the American Board of Psychiatry and Neurology.
Show 6 more questionsShow fewer questions
What services does Dr. Gregory Gene McGowan bill to Medicare?
In 2024, Dr. McGowan's most billed Medicare services were office visit, established patient (99214), psychiatric service (90833) and psychiatric service (90836).
Where did Dr. Gregory Gene McGowan go to medical school?
Dr. McGowan graduated from Marshall University Joan C. Edwards School of Medicine in 2002.
What drugs does Dr. Gregory Gene McGowan prescribe most?
In 2024 Medicare Part D data, Dr. McGowan's most prescribed drugs by claims were Diazepam.
Has Dr. Gregory Gene McGowan received payments from drug or device companies?
CMS Open Payments shows $91 in general payments to Dr. McGowan from 1 company from 2016 to 2016. The largest total came from Otsuka America Pharmaceutical, Inc.
How long has Dr. Gregory Gene McGowan been practicing?
Dr. McGowan graduated from medical school in 2002, 24 years ago.
What insurance does Dr. Gregory Gene McGowan accept?
Dr. McGowan is in network with 10 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
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