Dr. Gregory Sayer, MD
- Medicare services, 2020
- 12
- Industry payments
- $100
- Insurance carriers
- 1
- State licenses
- 2
- Year NPI issued
- 2012
- Practice address
- 23326 Hawthorne Blvd, Torrance, CA 90505
- Practice phone
- Call (310) 825-0018
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Sayer'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 Sayer is a psychiatrist in Torrance, California
Dr. Sayer practices in Torrance, California.
Dr. Sayer's NPI, 1043576457, was assigned on April 10, 2012. Dr. Sayer graduated from David Geffen School of Medicine at UCLA in 2012. Dr. Sayer holds California license A129550.
- NPI
- 1043576457NPI Registry (opens in a new tab)
- NPI enumeration date
- April 10, 2012
- NPI status
- Active
- Practice phone
- (310) 825-0018
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Gregory Sayer's practice address is in Torrance, California
Dr. Sayer's practice address in the NPI Registry is 23326 Hawthorne Blvd, Torrance, CA 90505, in Los Angeles County. The practice phone is (310) 825-0018.
- NPI Registry address23326 Hawthorne Blvd, Torrance, CA 90505 · Los Angeles CountyPhone(310) 825-0018
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Gregory Sayer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sayer practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Sayer's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregory Sayer is one of 6,803 psychiatrists in California
Psychiatry is Dr. Sayer's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Sayer is board certified in child & adolescent psychiatry by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Sayer's licenses on file in 2 states: California and New York.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
- New York license
Psychiatrists near Dr. Sayer
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 Sayer billed Medicare for 12 services in 2020
CMS data shows 12 Medicare services from Dr. Sayer across 1 procedure code in 2020. Medicare paid $1,377 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Sayer's Medicare services by type, 2019 to 2020
- 2019
- 2020
- Tests and treatments
- 2019: 352020: 1266%
Dr. Sayer compared with the California median for psychiatrists, 2020
- Dr. Sayer
- California median
- Medicare services
- 12vs 11990% below
Medians across 6,809 psychiatrists in California with Dmand AI profiles that report each measure.
Dr. Sayer's most billed Medicare procedure codes, 2020
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. Sayer and other psychiatrists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory Sayer's patients have a median age of 22
Across all payers, Dmand AI patient panel data puts Dr. Sayer's median patient age at 22, with 50% women.
Dr. Sayer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 22
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
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Dr. Gregory Sayer received $100 in industry payments in 2024
CMS Open Payments shows 1 general payment to Dr. Sayer from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $100.
Companies that paid Dr. Sayer the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gregory Sayer graduated from David Geffen School of Medicine at UCLA
Dr. Sayer graduated from David Geffen School of Medicine at UCLA in 2012.
- Medical school
- Board certified in child & adolescent psychiatry
- Board certified in psychiatry
Source: Dmand AI Professional Profile Data
Dr. Gregory Sayer accepts plans from 1 insurance carrier
Dr. Sayer is in network with 1 carrier, including NY State Medicaid. Medicaid plans come from the most carriers, 1. Check the plan with the practice before a visit.
- NY State Medicaid
Source: Dmand AI Insurance Network Data
Sources for Dr. Gregory Sayer'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 |
| 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 |
| 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 Sayer
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 Sayer's NPI number?
Dr. Gregory Sayer's NPI number is 1043576457. It was assigned on April 10, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory Sayer?
Dr. Gregory Sayer is a psychiatrist in Torrance, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Gregory Sayer practice?
Dr. Sayer practices at 23326 Hawthorne Blvd, Torrance, CA 90505.
What is Dr. Gregory Sayer's office phone number?
The practice phone on file for Dr. Sayer is (310) 825-0018.
What is Dr. Gregory Sayer's medical license number?
Dr. Sayer holds California license A129550, one of the licenses on file in 2 states.
Which states has Dr. Gregory Sayer been licensed in?
Dmand AI has state licenses on file for Dr. Sayer in California (2014 to 2026) and New York (2015 to 2026).
Does Dr. Gregory Sayer accept Medicare?
Yes. CMS data shows Dr. Sayer billed Medicare for 12 services in 2020.
Is Dr. Gregory Sayer board certified?
Yes. Dr. Sayer is board certified in child & adolescent psychiatry by the American Board of Psychiatry and Neurology.
What services does Dr. Gregory Sayer bill to Medicare?
In 2020, Dr. Sayer's most billed Medicare services were psychiatric service (90792).
Where did Dr. Gregory Sayer go to medical school?
Dr. Sayer graduated from David Geffen School of Medicine at UCLA in 2012.
Show 3 more questionsShow fewer questions
Has Dr. Gregory Sayer received payments from drug or device companies?
CMS Open Payments shows $100 in general payments to Dr. Sayer from 1 company from 2024 to 2024. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Gregory Sayer been practicing?
Dr. Sayer graduated from medical school in 2012, 14 years ago.
What insurance does Dr. Gregory Sayer accept?
Dr. Sayer is in network with 1 carrier, including NY State Medicaid. Medicaid plans come from the most carriers, 1. Check the plan with the practice before a visit.
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