Dr. Garrett Shields, DO
- Part D claims, 2024
- 518
- Hospital affiliations
- 1
- Industry payments
- $77
- State license
- 1
- Year NPI issued
- 2023
- Practice address
- 615 New Ballas Road, Saint Louis, MO 63141
- Practice phone
- Call (314) 251-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Shields' professional email, personal email and mobile number
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Dr. Garrett Shields is an internist in Saint Louis, Missouri
Dr. Shields practices at Mercy Hospital St. Louis in Saint Louis, Missouri, part of Mercy.
Dr. Shields' NPI, 1770279036, was assigned on April 11, 2023. Dr. Shields holds Missouri license 2023020702.
- NPI
- 1770279036NPI Registry (opens in a new tab)
- NPI enumeration date
- April 11, 2023
- NPI status
- Active
- Practice phone
- (314) 251-6000
- 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 Affiliation Data
Dr. Garrett Shields practices at Mercy Hospital St. Louis in Saint Louis, Missouri
Dr. Shields' primary practice is Mercy Hospital St. Louis, at 615 New Ballas Road, Saint Louis, MO 63141 in St. Louis County. The practice phone is (314) 251-6000.
- Mercy Hospital St. Louis615 New Ballas Road, Saint Louis, MO 63141 · St. Louis CountyPhone(314) 251-6000
Source: Dmand AI Affiliation Data
Dr. Garrett Shields is affiliated with 1 site of care
Dr. Shields' primary practice is Mercy Hospital St. Louis in Saint Louis, Missouri, part of Mercy.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Garrett Shields' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Shields practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy Hospital St. Louis | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Garrett Shields is one of 2,114 internists in Missouri
Internal medicine is Dr. Shields' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Shields is licensed in Missouri.
Specialties and state licenses
- Internal medicine, MissouriPrimary
Internists near Dr. Shields
Counts of internists 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. Garrett Shields' patients have a median age of 70
Across all payers, Dmand AI patient panel data puts Dr. Shields' median patient age at 70, with 43% women.
Dr. Shields' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women43%
- Men57%
Source: Dmand AI Patient Panel Data
Dr. Garrett Shields wrote 518 Medicare Part D claims in 2024
In 2024, Dr. Shields wrote 518 Medicare Part D claims for 55 patients. 76% of them were for generic drugs. CMS names the drug for 244 of them, across 16 drugs with 11 or more claims each, at $4,049 in total drug cost. In 2023, CMS named 11 claims across 1 drug.
Dr. Shields' Part D claims by kind of drug, 2024
- Generic394 claims76%
- Brand-name and other124 claims24%
Dr. Shields' 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.
Drug classes CMS tracks in Dr. Shields' Part D claims, 2024
- Opioids9%48 of 518 claims
- Antibiotics3%16 of 518 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 112024: 2442118%
Drugs named by CMS: 16 in 2024, 1 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
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Dr. Garrett Shields received $77 in industry payments from 2024 to 2025
CMS Open Payments shows 4 general payments to Dr. Shields from 4 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) paid the most, $24.
General payments to Dr. Shields by program year, 2024 to 2025
Companies that paid Dr. Shields the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Garrett Shields'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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) |
| 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. Garrett Shields
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. Garrett Shields' NPI number?
Dr. Garrett Shields' NPI number is 1770279036. It was assigned on April 11, 2023, and it is active in the NPI Registry.
What kind of doctor is Dr. Garrett Shields?
Dr. Garrett Shields is an internist in Saint Louis, Missouri. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Garrett Shields practice?
Dr. Shields practices at 615 New Ballas Road, Saint Louis, MO 63141. Dr. Shields' primary practice is Mercy Hospital St. Louis in Saint Louis, Missouri, part of Mercy.
What is Dr. Garrett Shields' office phone number?
The practice phone on file for Dr. Shields is (314) 251-6000.
What is Dr. Garrett Shields' medical license number?
Dr. Shields holds Missouri license 2023020702.
Which hospitals is Dr. Garrett Shields affiliated with?
Dr. Shields practices at Mercy Hospital St. Louis in Saint Louis, Missouri.
What drugs does Dr. Garrett Shields prescribe most?
In 2024 Medicare Part D data, Dr. Shields' most prescribed drugs by claims were Atorvastatin Calcium, Hydrocodone-Acetaminophen and Albuterol Sulfate Hfa.
Has Dr. Garrett Shields received payments from drug or device companies?
CMS Open Payments shows $77 in general payments to Dr. Shields from 4 companies from 2024 to 2025. The largest total came from ZOLL Services LLC (A/K/A ZOLL LifeCor Corp).
How long has Dr. Garrett Shields been practicing?
Dr. Shields' NPI was assigned in 2023.
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