David P. Chang, M.D.
Internal Medicine Physician · Easley, SC
David P. Chang, M.D. is an internal medicine physician with a practice address in Easley, South Carolina, and NPI 1487638581, issued on Dec 1, 2005. Check the license (South Carolina 20227, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- David P. Chang
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 20227 SC
Self-reported in NPPES; status is on the state search - Practice location
- 704 N A St, Easley, SC 29640
- Phone
- (864) 859-4480
- Enumerated
- Dec 1, 2005
- Record last updated
- Dec 5, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (864) 859-3750
- Medicaid ID
- GP3686 SC
- Medicare enrollment
- Enrolled (PECOS I20040224000776); accepts Medicare assignment
- Medical or professional school
- Medical University Of South Carolina College Of Medicine, 1997
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,881 in South Carolina → Look up another NPI →
Also registered at 704 N A St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- William Anderson, M.D.Internal Medicine Physician1831148667
- Roger Boatwright, M.D.Internal Medicine Physician1386628071
- Jessica Himmelstein, M.D.Internal Medicine Physician1205367166
Verify David P. Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 20227Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6.2 times the Medicare Part D claims of the average internal medicine physician in 2024
19,783 Medicare Part D claims for 952 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 203 claims were for opioids.
Most prescribed
- Pantoprazole Sodium661 claims
- Duloxetine Hcl519 claims
- Levothyroxine Sodium504 claims
- Atorvastatin Calcium467 claims
- Amlodipine Besylate446 claims
- Lisinopril397 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: $1,921.28
110 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Prisma Health University Medical GroupEasley, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David P. Chang among 1,881 internal medicine physician records in South Carolina
David P. Chang, M.D. is one of 1,881 internal medicine physician records with a practice address in South Carolina. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 93% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1997 · median 2006 among the 1,119 with a school on file
- Record last updated2013 · 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 207R00000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
11 internal medicine physician records list a practice address in Easley
They are 11 of the 779 NPPES records with a practice address in Easley, and 1,881 internal medicine physician records in South Carolina.
All 1,881 in South Carolina → Every provider in Easley → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- William Anderson, M.D.Easley, SC 296401831148667
- Roger Boatwright, M.D.Easley, SC 296401386628071
- Steven Freeman, MDEasley, SC 296401538290374
- Steve Han, MDEasley, SC 296401184885121
- Lisa Harding, MDEasley, SC 296401467447631
- Jessica Himmelstein, M.D.Easley, SC 296401205367166
- Geanice Holton, MDEasley, SC 296401053306225
- Mudunuri Raju, M.D.Easley, SC 296401124095484
Common questions
What is David P. Chang, M.D.'s NPI number?
David P. Chang, M.D.'s National Provider Identifier (NPI) is 1487638581, issued on Dec 1, 2005. An NPI identifies a provider in billing; it is not a license.
Where is David P. Chang, M.D. located?
The NPPES record lists a practice address at 704 N A St, Easley, SC, 29640. Phone: (864) 859-4480. Providers update this record themselves, so call before visiting.
How can I verify David P. Chang, M.D.'s license?
NPPES lists South Carolina license number 20227, 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 David P. Chang, M.D. prescribe under Medicare Part D?
In 2024, David P. Chang, M.D. had 19,783 Medicare Part D claims for 952 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.