NPPES file of Aug 9, 2026

Douglas Kelley Nicholson, DO

Nephrology Physician · Rock Hill, SC

Douglas Kelley Nicholson, DO is a nephrology physician with a practice address in Rock Hill, South Carolina, and NPI 1649273582, issued on May 24, 2005. Check the license (South Carolina 0717, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1649273582
Name
Douglas Kelley Nicholson
Credential
DO
Primary taxonomy
Nephrology Physician 207RN0300X
License number
0717 SC
Self-reported in NPPES; status is on the state search
Practice location
1436 Riverchase Blvd, Rock Hill, SC 29732
Phone
(803) 329-2636
Enumerated
May 24, 2005
Record last updated
Feb 5, 2026
Fax
(803) 329-2184
Medicaid ID
T00380 SC
Medicare enrollment
Enrolled (PECOS I20120604000012); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1436 Riverchase Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Robert Adrah, MDNephrology Physician1629499785
  2. Ramesh Bhoothapuri, MDNephrology Physician1124021076
  3. Satya Sai Bhupathi, M.D.Nephrology Physician1235335456
  4. William Bixenman, MDNephrology Physician1891798740
  5. Brian Erb, M.D.Nephrology Physician1659469559
  6. John Fassler, MDNephrology Physician1891798757

Verify Douglas Kelley Nicholson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
    Search for license 0717
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the South Carolina license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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31% fewer Medicare Part D claims than the average nephrology physician in 2024

1,007 Medicare Part D claims for 230 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. 16 claims were for opioids.

  1. Douglas Nicholson1,007
  2. Specialty average1,465

Most prescribed

  1. Torsemide53 claims
  2. Allopurinol48 claims
  3. Amlodipine Besylate46 claims
  4. Spironolactone46 claims
  5. Carvedilol41 claims
  6. Prednisone37 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 76.9 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score50.7
  2. Costout of 100 · 30%72.2
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $70.60

3 payments; by number, the most common kind was food and beverage; the largest payer was Calliditas Therapeutics US Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Douglas Nicholson$70.60
  2. Specialty average$3,091.37

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

  1. Nephrology Associates PACharlotte, NC

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Douglas Kelley Nicholson among 202 nephrology physician records in South Carolina

Douglas Kelley Nicholson, DO 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 fileYes · 71% of these records are
  • Graduated1998 · median 1999 among the 144 with a school on file
  • Record last updated2026 · 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.

The 8 nephrology physician records with the nearest ZIP codes

  1. Robert Adrah, MDRock Hill, SC 297321629499785
  2. Ramesh Bhoothapuri, MDRock Hill, SC 297321124021076
  3. Satya Sai Bhupathi, M.D.Rock Hill, SC 297321235335456
  4. William Bixenman, MDRock Hill, SC 297321891798740
  5. Brian Erb, M.D.Rock Hill, SC 297321659469559
  6. John Fassler, MDRock Hill, SC 297321891798757
  7. Craig Herrforth, MDRock Hill, SC 297321104404060
  8. Ravi Kodali, M.D.Rock Hill, SC 297321508275587

Common questions

What is Douglas Kelley Nicholson, DO's NPI number?

Douglas Kelley Nicholson, DO's National Provider Identifier (NPI) is 1649273582, issued on May 24, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Douglas Kelley Nicholson, DO located?

The NPPES record lists a practice address at 1436 Riverchase Blvd, Rock Hill, SC, 29732. Phone: (803) 329-2636. Providers update this record themselves, so call before visiting.

How can I verify Douglas Kelley Nicholson, DO's license?

NPPES lists South Carolina license number 0717, 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 Douglas Kelley Nicholson, DO prescribe under Medicare Part D?

In 2024, Douglas Kelley Nicholson, DO had 1,007 Medicare Part D claims for 230 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.

What is Douglas Kelley Nicholson, DO's MIPS final score?

The 2023 MIPS final score is 76.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.