Gregory Thomas Squires, MD
Critical Care Medicine (Anesthesiology) Physician · Charleston, SC
Gregory Thomas Squires, MD is a critical care medicine (anesthesiology) physician with a practice address in Charleston, South Carolina, and NPI 1083679831, issued on Apr 17, 2006. Check the license (South Carolina 21090, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Gregory Thomas Squires
- Credential
- MD
- Primary taxonomy
- Critical Care Medicine (Anesthesiology) Physician 207LC0200X
- License numbers
- 21090 SC
021090 SC
Self-reported in NPPES; status is on the state search - Practice location
- 171 Ashley Ave, Charleston, SC 29425
- Phone
- (843) 792-1414
- Enumerated
- Apr 17, 2006
- Record last updated
- Oct 8, 2024
- Medicaid ID
- GP4370 SC
- Medicare enrollment
- Enrolled (PECOS I20060323000160); accepts Medicare assignment
- Medical or professional school
- Medical University Of South Carolina College Of Medicine, 1993
- Entity
- Type 1 · individual
8 nearest critical care medicine (anesthesiology) physician records → All 13 in South Carolina → Look up another NPI →
Also registered at 171 Ashley Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gregory Thomas Squires in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 21090Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $85.59
2 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 394 providers of this specialty with any payment received $2,001.81 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- University Medical Associates OF The Medical University OF South CarolCharleston, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Thomas Squires among 13 critical care medicine (anesthesiology) physician records in South Carolina
Gregory Thomas Squires, MD is one of 13 critical care medicine (anesthesiology) physician records with a practice address in South Carolina. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 46% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1993 · median 1998 among the 10 with a school on file
- Record last updated2024 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207LC0200X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Anesthesiology) Physician providers in South Carolina
There are 13 critical care medicine (anesthesiology) physician records in South Carolina.
All 13 in South Carolina → Every provider in Charleston → Critical Care Medicine (Anesthesiology) Physician nationwide →
The 8 critical care medicine (anesthesiology) physician records with the nearest ZIP codes
- Robert Bowen, MDCharleston, SC 294251750701447
- Maranda Jordan, DOCharleston, SC 294251275228504
- Rishi Patel, M.D.Charleston, SC 294251316301534
- Jack Sudduth, MD, MSCharleston, SC 294251215632898
- Pritee Tarwade, M.D.Charleston, SC 294251134675473
- Henrique Alencastro Puls, MDGreenville, SC 296051568969723
- Wilson Beamer, M.D.Greenville, SC 296091821093170
- Rhett Dodge, MDGreenville, SC 296151902840499
Common questions
What is Gregory Thomas Squires, MD's NPI number?
Gregory Thomas Squires, MD's National Provider Identifier (NPI) is 1083679831, issued on Apr 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Thomas Squires, MD located?
The NPPES record lists a practice address at 171 Ashley Ave, Charleston, SC, 29425. Phone: (843) 792-1414. Providers update this record themselves, so call before visiting.
How can I verify Gregory Thomas Squires, MD's license?
NPPES lists South Carolina license number 21090, as entered by the provider. Search the South Carolina Board of Medical Examiners at https://verify.llronline.com/LicLookup/Med/Med.aspx?div=22. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.