James Preston Mercer, MD
Student in an Organized Health Care Education/Training Program · Charleston, SC
James Preston Mercer, MD is a student in an organized health care education/training program with a practice address in Charleston, South Carolina, and NPI 1770167488, issued on May 9, 2021. Check the license with the South Carolina board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- James Preston Mercer
- Credential
- MD
- Primary taxonomy
- Student in an Organized Health Care Education/Training Program 390200000X
- Practice location
- 169 Ashley Avenue, Charleston, SC 29425
- Phone
- (843) 792-3222
- Enumerated
- May 9, 2021
- Record last updated
- Jun 14, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest student in an organized health care education/training program records → All 2,021 in South Carolina → Look up another NPI →
Also registered at 169 Ashley Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify James Preston Mercer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich South Carolina board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average student in an organized health care education/training program in 2024
33 Medicare Part D claims for 14 beneficiaries, against an average of 185 among the 59,748 providers of this specialty who prescribed in Part D.
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.
James Preston Mercer among 2,021 student in an organized health care education/training program records in South Carolina
James Preston Mercer, MD is one of 2,021 student in an organized health care education/training program records with a practice address in South Carolina. 23% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 11% of them.
- NPI issued2021 · 11% of these records are older, 84% newer
- In a Medicare fileYes · 23% of these records are
- In the CMS Doctors and Clinicians fileNo · 2% of these records are
- Record last updated2021 · 12% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 390200000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
344 student in an organized health care education/training program records list a practice address in Charleston
They are 344 of the 10,840 NPPES records with a practice address in Charleston, and 2,021 student in an organized health care education/training program records in South Carolina.
All 2,021 in South Carolina → Every provider in Charleston → Student in an Organized Health Care Education/Training Program nationwide →
The 8 student in an organized health care education/training program records with the nearest ZIP codes
- Hawazen Alsaedi, MDCharleston, SC 294251669607305
- Ananda Amstadter, PHDCharleston, SC 294251346576253
- Larissa Check, CARDIOLOGYCharleston, SC 294251215374673
- Annette Gisele Chua, M.D.Charleston, SC 294251609181346
- Ellen Daly, MDCharleston, SC 294251427587880
- Jared Dempsey, M.A.Charleston, SC 294251144348236
- Palanivelraju Gopalakrishnan, M.DCharleston, SC 294251700228715
- Stefanie Grewe, M.D.Charleston, SC 294251528592904
Common questions
What is James Preston Mercer, MD's NPI number?
James Preston Mercer, MD's National Provider Identifier (NPI) is 1770167488, issued on May 9, 2021. An NPI identifies a provider in billing; it is not a license.
Where is James Preston Mercer, MD located?
The NPPES record lists a practice address at 169 Ashley Avenue, Charleston, SC, 29425. Phone: (843) 792-3222. Providers update this record themselves, so call before visiting.
How can I verify James Preston Mercer, MD's license?
Search the South Carolina board that licenses this profession; the NPPES record confirms identity only.
How much does James Preston Mercer, MD prescribe under Medicare Part D?
In 2024, James Preston Mercer, MD had 33 Medicare Part D claims for 14 beneficiaries; the average among student in an organized health care education/training program prescribers was 185. 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.