Am J Dermatopathol
Dermatitis HerpetiformisDiagnosis, DifferentialFluorescent Antibody Technique, Direct
Dr. Catherine Shirer Barker, MD
NPI1922783919
- Part D claims, 2024
- 85
- Publications
- 14
- Industry payments
- $749
- State license
- 1
- Year NPI issued
- 2023
- Practice address
- 1208 2 Island Ct, Mount Pleasant, SC 29466
- Practice phone
- Call (803) 286-4666
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
MUSC Physicians
Mount Pleasant, South Carolina
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Dr. Catherine Shirer Barker is an internist in Mount Pleasant, South Carolina
Dr. Barker practices at MUSC Physicians in Mount Pleasant, South Carolina.
Dr. Barker's NPI, 1922783919, was assigned on June 19, 2023. Dr. Barker graduated from Medical University of South Carolina (MUSC) in 2023. Dr. Barker holds South Carolina license LL88182.
NPI and contact details
- NPI
- 1922783919NPI Registry (opens in a new tab)
- NPI enumeration date
- June 19, 2023
- NPI status
- Active
- Practice phone
- (803) 286-4666
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Medical school graduation
- 2023
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Catherine Shirer Barker practices at MUSC Physicians in Mount Pleasant, South Carolina
Dr. Barker's primary practice is MUSC Physicians, at 1208 2 Island Ct, Mount Pleasant, SC 29466 in Charleston County. The practice phone is (803) 286-4666.
- MUSC Physicians1208 2 Island Ct, Mount Pleasant, SC 29466 · Charleston CountyPhone(803) 286-4666
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Catherine Shirer Barker is affiliated with 1 site of care
Dr. Barker's primary practice is MUSC Physicians in Mount Pleasant, South Carolina.
MUSC PhysiciansPrimary
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Catherine Shirer Barker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Barker practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MUSC Physicians | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Catherine Shirer Barker is one of 1,707 internists in South Carolina
Internal medicine is Dr. Barker's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Barker is licensed in South Carolina.
Specialties and state licenses
- Internal medicine, South CarolinaPrimary
Internists near Dr. Barker
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. Catherine Shirer Barker's patients have a median age of 48
Across all payers, Dmand AI patient panel data puts Dr. Barker's median patient age at 48, with 73% women.
Dr. Barker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 48
Patient panel by sex, all payers
- Women73%
- Men27%
Source: Dmand AI Patient Panel Data
Dr. Catherine Shirer Barker wrote 85 Medicare Part D claims in 2024
In 2024, Dr. Barker wrote 85 Medicare Part D claims for 40 patients. 76% of them were for generic drugs.
Part D claims, 202485
Part D patients40
Dr. Barker's Part D claims by kind of drug, 2024
- Generic65 claims76%
- Brand-name and other20 claims24%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Catherine Shirer Barker has 14 publications on record
Dmand AI links 14 papers to Dr. Barker, published from 2022 to 2024. 2023 was the busiest year, with 4. The most frequent topics are Breast Neoplasms and Diagnosis, Differential. Dr. Barker has published most often in Cutis. Dr. Barker's most frequent co-authors are Dirk Michael Elston, MD, Andrea Marie Abbott, MD and Hesham Alshaikh.
Papers14
Years published2022 to 2024
Dr. Barker's papers by year, 2022 to 2024
Topics Dr. Barker writes about most
- Breast Neoplasms
- Diagnosis, Differential
Dr. Barker's most frequent co-authors
- Dirk Michael Elston, MD7 shared papers
- Andrea Marie Abbott, MD1 shared paper
- Hesham Alshaikh1 shared paper
Recent publications by Dr. Barker
Epidermolysis Bullosa AcquisitaLupus Erythematosus, CutaneousPemphigoid, Bullous
DermatologyMycobacterium Infections, NontuberculousNontuberculous Mycobacteria
Breast Cancer Res Treat
Breast NeoplasmsMedicarePatient Navigation
See who Dr. Barker researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Barker works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Catherine Shirer Barker received $749 in industry payments from 2024 to 2025
CMS Open Payments shows 9 general payments to Dr. Barker from 7 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 91% of the total. Janssen Pharmaceuticals, Inc paid the most, $247.
General payments to Dr. Barker by program year, 2024 to 2025
General payments to Dr. Barker by kind, 2024 to 2025
$749in total
- Food and beverage$68091%
- Education$699%
Companies that paid Dr. Barker the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Catherine Shirer Barker graduated from Medical University of South Carolina (MUSC)
Dr. Barker graduated from Medical University of South Carolina (MUSC) in 2023.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Catherine Shirer Barker'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 Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | 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) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Catherine Shirer Barker
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. Catherine Shirer Barker's NPI number?
Dr. Catherine Shirer Barker's NPI number is 1922783919. It was assigned on June 19, 2023, and it is active in the NPI Registry.
What kind of doctor is Dr. Catherine Shirer Barker?
Dr. Catherine Shirer Barker is an internist in Mount Pleasant, South Carolina. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Catherine Shirer Barker practice?
Dr. Barker practices at 1208 2 Island Ct, Mount Pleasant, SC 29466. Dr. Barker's primary practice is MUSC Physicians in Mount Pleasant, South Carolina.
What is Dr. Catherine Shirer Barker's office phone number?
The practice phone on file for Dr. Barker is (803) 286-4666.
What is Dr. Catherine Shirer Barker's medical license number?
Dr. Barker holds South Carolina license LL88182.
Where did Dr. Catherine Shirer Barker go to medical school?
Dr. Barker graduated from Medical University of South Carolina (MUSC) in 2023.
Has Dr. Catherine Shirer Barker received payments from drug or device companies?
CMS Open Payments shows $749 in general payments to Dr. Barker from 7 companies from 2024 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Catherine Shirer Barker been practicing?
Dr. Barker graduated from medical school in 2023, 3 years ago.
Does Dr. Catherine Shirer Barker do research?
Dmand AI links 14 publications to Dr. Barker, published from 2022 to 2024.
Who does Dr. Catherine Shirer Barker publish with?
Dr. Barker's most frequent co-authors are Dirk Michael Elston, MD (7 shared papers), Andrea Marie Abbott, MD (1 shared paper) and Hesham Alshaikh (1 shared paper).
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