Cassidy Anne Muir, MD
Surgery Physician · Charleston, SC
Cassidy Anne Muir, MD is a surgery physician with a practice address in Charleston, South Carolina, and NPI 1831837418, issued on May 24, 2022. Check the license (South Carolina LL87855, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Cassidy Anne Muir
- Credential
- MD
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- LL87855 SC
Self-reported in NPPES; status is on the state search - Practice location
- 171 Ashley Ave, Charleston, SC 29425
- Phone
- (843) 792-1414
- Enumerated
- May 24, 2022
- Record last updated
- May 24, 2022
- Entity
- Type 1 · individual
Also registered at 171 Ashley Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Andrea Abbott, MDSurgical Oncology Physician1245473354
- Miguel Abboud, MDPediatric Hematology & Oncology Physician1619292851
- Ahmed Abdelkader, MD, PHDNephrology Physician1629743000
- Mohamed Abdelwahab, MDOtolaryngology Physician1528679768
- Anne Abel, MDChild Abuse Pediatrics Physician1043328990
- Christina Abrams, M.D.Pediatric Hematology & Oncology Physician1376920207
Verify Cassidy Anne Muir in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license LL87855Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
45% fewer Medicare Part D claims than the average surgery physician in 2024
81 Medicare Part D claims for 34 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 17 claims were for opioids.
Most prescribed
- Oxycodone Hcl16 claims
- Methocarbamol11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,685.35
16 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 17,103 providers of this specialty with any payment received $3,513.80 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.
167 surgery physician records list a practice address in Charleston
They are 167 of the 10,840 NPPES records with a practice address in Charleston, and 647 surgery physician records in South Carolina.
All 167 in Charleston → All 647 in South Carolina → Every provider in Charleston →
Other surgery physician records in South Carolina
- Hatem Abdallah, M.DFlorence, SC1205276052
- Sanaa Abdelmageed, MDCharleston, SC1003428756
- David Adams, MDCharleston, SC1467566968
- Jessica Adams, D.ODillon, SC1669784344
- John AhlertGreenville, SC1841995446
- Manzoor Ahmad, MDGaffney, SC1578541678
- Philip Albaneze, MDCharleston, SC1285691170
- Ashley Alexander, MDSumter, SC1265069983
- Daniel Allen, MDCharleston, SC1588244974
- Steven Allgood, M.D.Greenville, SC1265425045
Common questions
What is Cassidy Anne Muir, MD's NPI number?
Cassidy Anne Muir, MD's National Provider Identifier (NPI) is 1831837418, issued on May 24, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Cassidy Anne Muir, 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 Cassidy Anne Muir, MD's license?
NPPES lists South Carolina license number LL87855, 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.
How much does Cassidy Anne Muir, MD prescribe under Medicare Part D?
In 2024, Cassidy Anne Muir, MD had 81 Medicare Part D claims for 34 beneficiaries; the average among surgery physician prescribers was 147. Part D covers Medicare prescriptions only.
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.