Dr. Thomas J. Grayden, MD
- Medicare services, 2022
- 1,071
- Part D claims, 2024
- 43
- Industry payments
- $1,675
- Affiliated sites
- 2
- Medical groups
- 3
- Practice address
- 3151 Airway Ave, Costa Mesa, CA 92626
- Practice phone
- Call (714) 545-5550
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Pacific Neuropsychiatric Specialists Inc.
Costa Mesa, California
Find Dr. Grayden'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. Thomas J. Grayden is a psychiatrist in Costa Mesa, California
Dr. Grayden practices at Pacific Neuropsychiatric Specialists Inc. in Costa Mesa, California.
Dr. Grayden's NPI, 1700942117, was assigned on December 29, 2006. Dr. Grayden graduated from University Of Minnesota Medical School in 1982. Dr. Grayden holds Arizona license 67316.
- NPI
- 1700942117NPI Registry (opens in a new tab)
- NPI enumeration date
- December 29, 2006
- NPI status
- Active
- Practice phone
- (714) 545-5550
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Thomas J. Grayden practices at Pacific Neuropsychiatric Specialists Inc. in Costa Mesa, California
Dr. Grayden's primary practice is Pacific Neuropsychiatric Specialists Inc., at 3151 Airway Ave, Costa Mesa, CA 92626 in Orange County. The practice phone is (714) 545-5550.
- Pacific Neuropsychiatric Specialists Inc.3151 Airway Ave, Costa Mesa, CA 92626 · Orange CountyPhone(714) 545-5550
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Thomas J. Grayden is affiliated with 3 sites of care and 3 medical groups
Dr. Grayden's primary practice is Pacific Neuropsychiatric Specialists Inc. in Costa Mesa, California. The medical group on file is Pacific Neuropsychiatric Specialists. Dmand AI also links Dr. Grayden to 2 more group practices and clinics and 2 medical groups, each 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. Thomas J. Grayden's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Grayden practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Pacific Neuropsychiatric Specialists Inc. | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Thomas J. Grayden is one of 6,803 psychiatrists in California
Psychiatry is Dr. Grayden's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Grayden is board certified in psychiatry by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Grayden's licenses on file in 2 states: Arizona and California.
Specialties and state licenses
- Psychiatry, ArizonaPrimary
- California license
Clinical focus
Dmand AI lists psychoses among the conditions Dr. Grayden treats.
Psychiatrists near Dr. Grayden
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. Thomas J. Grayden billed Medicare for 1,071 services in 2022
CMS data shows 1,071 Medicare services from Dr. Grayden across 4 procedure codes in 2022. Medicare paid $81,778 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Grayden's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 3,6992022: 1,07171%
Dr. Grayden compared with the California median for psychiatrists, 2022
- Dr. Grayden
- California median
- Medicare services
- 1,071vs 1199.0 times
- Part D claims
- 54vs 14463% below
Medians across 6,809 psychiatrists in California with Dmand AI profiles that report each measure.
Dr. Grayden's most billed Medicare procedure codes, 2022
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Grayden and other psychiatrists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Thomas J. Grayden's patients have a median age of 34
Across all payers, Dmand AI patient panel data puts Dr. Grayden's median patient age at 34, with 44% women.
Dr. Grayden's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 34
Patient panel by sex, all payers
- Women44%
- Men56%
Source: Dmand AI Patient Panel Data
Dr. Thomas J. Grayden wrote 43 Medicare Part D claims in 2024
In 2024, Dr. Grayden wrote 43 Medicare Part D claims for 14 patients. 100% of them were for generic drugs. They cover 3 drugs, with $42,068 in total drug cost. In 2022, CMS named 574 claims across 22 drugs.
Dr. Grayden's most prescribed drugs by claims, 2023
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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 5742023: 5491%
Drugs named by CMS: 3 in 2023, 22 in 2022.
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
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Dr. Thomas J. Grayden received $1,675 in industry payments from 2016 to 2025
CMS Open Payments shows 24 general payments to Dr. Grayden from 11 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Neurocrine BioSciences, Inc. paid the most, $420.
General payments to Dr. Grayden by program year, 2016 to 2025
Companies that paid Dr. Grayden the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Thomas J. Grayden graduated from University Of Minnesota Medical School
Dr. Grayden graduated from University Of Minnesota Medical School in 1982.
- Medical school
- Board certified in psychiatry
Source: Dmand AI Professional Profile Data
Dr. Thomas J. Grayden accepts plans from 11 insurance carriers
Dr. Grayden is in network with 11 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- Blue Cross Blue Shield of Arizona
- +3 more carriersWith a free account
Plan types Dr. Grayden accepts, by number of carriers
- Medicare9
- PPO8
- HMO4
- POS4
- EPO2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Thomas J. Grayden'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 Data |
| 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) |
| 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. Thomas J. Grayden
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. Thomas J. Grayden's NPI number?
Dr. Thomas J. Grayden's NPI number is 1700942117. It was assigned on December 29, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas J. Grayden?
Dr. Thomas J. Grayden is a psychiatrist in Costa Mesa, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Thomas J. Grayden practice?
Dr. Grayden practices at 3151 Airway Ave, Costa Mesa, CA 92626. Dr. Grayden's primary practice is Pacific Neuropsychiatric Specialists Inc. in Costa Mesa, California. Dmand AI also links Dr. Grayden to 2 group practices and clinics and 2 medical groups.
What is Dr. Thomas J. Grayden's office phone number?
The practice phone on file for Dr. Grayden is (714) 545-5550.
What is Dr. Thomas J. Grayden's medical license number?
Dr. Grayden holds Arizona license 67316, one of the licenses on file in 2 states.
Which states has Dr. Thomas J. Grayden been licensed in?
Dmand AI has state licenses on file for Dr. Grayden in Arizona (2022 to 2027) and California (1983 to 2026).
What medical group is Dr. Thomas J. Grayden part of?
Dr. Grayden is linked to Pacific Neuropsychiatric Specialists. Dmand AI links Dr. Grayden to 2 more medical groups.
Does Dr. Thomas J. Grayden accept Medicare?
Yes. CMS data shows Dr. Grayden billed Medicare for 1,071 services in 2022.
Is Dr. Thomas J. Grayden board certified?
Yes. Dr. Grayden is board certified in psychiatry by the American Board of Psychiatry and Neurology.
What services does Dr. Thomas J. Grayden bill to Medicare?
In 2022, Dr. Grayden's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99223).
Show 5 more questionsShow fewer questions
Where did Dr. Thomas J. Grayden go to medical school?
Dr. Grayden graduated from University Of Minnesota Medical School in 1982.
What drugs does Dr. Thomas J. Grayden prescribe most?
In 2023 Medicare Part D data, Dr. Grayden's most prescribed drugs by claims were Olanzapine, Invega Sustenna and Bupropion HCl.
Has Dr. Thomas J. Grayden received payments from drug or device companies?
CMS Open Payments shows $1,675 in general payments to Dr. Grayden from 11 companies from 2016 to 2025. The largest total came from Neurocrine BioSciences, Inc.
How long has Dr. Thomas J. Grayden been practicing?
Dr. Grayden graduated from medical school in 1982, 44 years ago.
What insurance does Dr. Thomas J. Grayden accept?
Dr. Grayden is in network with 11 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
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