Keith Robert Superdock, MD
Nephrology Physician · Greenville, SC
Keith Robert Superdock, MD is a nephrology physician with a practice address in Greenville, South Carolina, and NPI 1700874021, issued on Oct 11, 2005. Check the license (South Carolina 85922, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Keith Robert Superdock
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License numbers
- 85922 SC
MD049781L PA
Self-reported in NPPES; status is on the state search - Practice location
- 701 Grove RD, Greenville, SC 29605
- Phone
- (864) 455-5648
- Enumerated
- Oct 11, 2005
- Record last updated
- Jul 21, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (864) 455-7862
- Medicaid IDs
- 0014136400001 PA
PENDING SC - Entity
- Type 1 · individual
8 nearest nephrology physician records → All 202 in South Carolina → Look up another NPI →
Also registered at 701 Grove RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kira Adkins, PHARMDPharmacist1629704457
- Brandford Adobaw, MDEmergency Medicine Physician1871116178
- John AhlertSurgery Physician1841995446
- Virginia Alexander, M.D.Hospice and Palliative Medicine (Internal Medicine) Physician1801123971
- Brian Allen, D.O.Hospitalist Physician1184851495
- Dawn Allen, NNPCritical Care Neonatal Nurse Practitioner1164836227
Verify Keith Robert Superdock in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 85922Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average nephrology physician in 2024
297 Medicare Part D claims for 52 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.
Most prescribed
- Sulfamethoxazole-Trimethoprim46 claims
- Omeprazole31 claims
- Famotidine26 claims
- Cinacalcet Hcl24 claims
- Tacrolimus22 claims
- Pantoprazole Sodium14 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.
Keith Robert Superdock among 202 nephrology physician records in South Carolina
Keith Robert Superdock, MD is one of 202 nephrology 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, 81% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 71% of these records are
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in South Carolina
There are 202 nephrology physician records in South Carolina.
All 202 in South Carolina → Every provider in Greenville → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- George Acres, MDGreenville, SC 296051922081298
- Chokri AliouaGreenville, SC 296051538142807
- Istvan Bognar, MDGreenville, SC 296051659354926
- Kaye Christopher, MDGreenville, SC 296051881689966
- Charles Fowler, MDGreenville, SC 296051558344820
- Joachim Hertel, MDGreenville, SC 296051538146303
- William Kendrick, M.D.Greenville, SC 296051720199920
- Victor Klimas, MDGreenville, SC 296051801879184
Common questions
What is Keith Robert Superdock, MD's NPI number?
Keith Robert Superdock, MD's National Provider Identifier (NPI) is 1700874021, issued on Oct 11, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Keith Robert Superdock, MD located?
The NPPES record lists a practice address at 701 Grove RD, Greenville, SC, 29605. Phone: (864) 455-5648. Providers update this record themselves, so call before visiting.
How can I verify Keith Robert Superdock, MD's license?
NPPES lists South Carolina license number 85922, 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 Keith Robert Superdock, MD prescribe under Medicare Part D?
In 2024, Keith Robert Superdock, MD had 297 Medicare Part D claims for 52 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.