Dr. Clayton Gerald Parks, MD
- Part D claims, 2024
- 94
- Publications
- 2
- Industry payments
- $53
- Medical group
- 1
- State licenses
- 2
- Practice address
- 55 E Jackson Blvd, Chicago, IL 60604
- Practice phone
- Call (312) 663-1130
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Gateway Foundation, Inc
Chicago, Illinois
Find Dr. Parks' 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. Clayton Gerald Parks is a psychiatrist in Chicago, Illinois
Dr. Parks practices at Gateway Foundation, Inc in Chicago, Illinois.
Dr. Parks' NPI, 1518346568, was assigned on May 22, 2015. Dr. Parks holds Illinois license 036150659.
- NPI
- 1518346568NPI Registry (opens in a new tab)
- NPI enumeration date
- May 22, 2015
- NPI status
- Active
- Practice phone
- (312) 663-1130
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Clayton Gerald Parks practices at Gateway Foundation, Inc in Chicago, Illinois
Dr. Parks' primary practice is Gateway Foundation, Inc, at 55 E Jackson Blvd, Chicago, IL 60604 in Cook County. The practice phone is (312) 663-1130.
- Gateway Foundation, Inc55 E Jackson Blvd, Chicago, IL 60604 · Cook CountyPhone(312) 663-1130
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Clayton Gerald Parks is affiliated with 1 site of care and 1 medical group
Dr. Parks' primary practice is Gateway Foundation, Inc in Chicago, Illinois. The medical group on file is Gateway Professional Services, PC.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Clayton Gerald Parks' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Parks practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Gateway Foundation, Inc | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Clayton Gerald Parks is one of 1,527 psychiatrists in Illinois
Psychiatry is Dr. Parks' primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dmand AI has Dr. Parks' licenses on file in 2 states: Illinois and California.
Specialties and state licenses
- Psychiatry, IllinoisPrimary
- California license
Psychiatrists near Dr. Parks
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. Clayton Gerald Parks' patients have a median age of 39
Across all payers, Dmand AI patient panel data puts Dr. Parks' median patient age at 39, with 35% women.
Dr. Parks' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 39
Patient panel by sex, all payers
- Women35%
- Men65%
Source: Dmand AI Patient Panel Data
Dr. Clayton Gerald Parks wrote 94 Medicare Part D claims in 2024
In 2024, Dr. Parks wrote 94 Medicare Part D claims for 17 patients. 94% of them were for generic drugs. CMS names the drug for 25 of them, across 2 drugs with 11 or more claims each, at $1,075 in total drug cost. In 2022, CMS named 50 claims across 3 drugs.
Dr. Parks' Part D claims by kind of drug, 2024
- Generic88 claims94%
- Brand-name and other6 claims6%
Dr. Parks' 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: 502023: 2550%
Drugs named by CMS: 2 in 2023, 3 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. Clayton Gerald Parks has 2 publications on record
Dmand AI links 2 papers to Dr. Parks, published from 2017 to 2018. Dr. Parks' most frequent co-authors are Obiora Edward Onwuameze, MD, MS, PhD, Jeffrey I. Bennett, MD and Johnathon Prentice Yost, MD.
Dr. Parks' most frequent co-authors
- Obiora Edward Onwuameze, MD, MS, PhD2 shared papers
- Jeffrey I. Bennett, MD1 shared paper
- Johnathon Prentice Yost, MD1 shared paper
Recent publications by Dr. Parks
See who Dr. Parks researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Parks works with, so you can find a warm path to the right psychiatrists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Clayton Gerald Parks received $53 in industry payments from 2020 to 2021
CMS Open Payments shows 3 general payments to Dr. Parks from 2 drug and device companies from 2020 to 2021. Food and beverage make up the largest share, 100% of the total. Alkermes, Inc. paid the most, $30.
General payments to Dr. Parks by program year, 2020 to 2021
Companies that paid Dr. Parks the most, 2020 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Clayton Gerald Parks'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 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Clayton Gerald Parks
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. Clayton Gerald Parks' NPI number?
Dr. Clayton Gerald Parks' NPI number is 1518346568. It was assigned on May 22, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Clayton Gerald Parks?
Dr. Clayton Gerald Parks is a psychiatrist in Chicago, Illinois. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Clayton Gerald Parks practice?
Dr. Parks practices at 55 E Jackson Blvd, Chicago, IL 60604. Dr. Parks' primary practice is Gateway Foundation, Inc in Chicago, Illinois.
What is Dr. Clayton Gerald Parks' office phone number?
The practice phone on file for Dr. Parks is (312) 663-1130.
What is Dr. Clayton Gerald Parks' medical license number?
Dr. Parks holds Illinois license 036150659, one of the licenses on file in 2 states.
Which states has Dr. Clayton Gerald Parks been licensed in?
Dmand AI has state licenses on file for Dr. Parks in Illinois and California.
What medical group is Dr. Clayton Gerald Parks part of?
Dr. Parks is linked to Gateway Professional Services, PC.
What drugs does Dr. Clayton Gerald Parks prescribe most?
In 2023 Medicare Part D data, Dr. Parks' most prescribed drugs by claims were Gabapentin and Buprenorphine-Naloxone.
Has Dr. Clayton Gerald Parks received payments from drug or device companies?
CMS Open Payments shows $53 in general payments to Dr. Parks from 2 companies from 2020 to 2021. The largest total came from Alkermes, Inc.
How long has Dr. Clayton Gerald Parks been practicing?
Dr. Parks' NPI was assigned in 2015.
Does Dr. Clayton Gerald Parks do research?
Dmand AI links 2 publications to Dr. Parks, published from 2017 to 2018.
Who does Dr. Clayton Gerald Parks publish with?
Dr. Parks' most frequent co-authors are Obiora Edward Onwuameze, MD, MS, PhD (2 shared papers), Jeffrey I. Bennett, MD (1 shared paper) and Johnathon Prentice Yost, MD (1 shared paper).
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