NPPES file of Aug 9, 2026

Casey Lee Prenger, MD

Internal Medicine Physician · Sylva, NC

Casey Lee Prenger, MD is an internal medicine physician with a practice address in Sylva, North Carolina, and NPI 1578764684, issued on May 29, 2007. Check the license (North Carolina 200901153, as entered in NPPES) on the North Carolina Medical Board; 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
1578764684
Name
Casey Lee Prenger
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
200901153 NC
57010017 OH
Self-reported in NPPES; status is on the state search
Practice location
68 Hospital RD, Sylva, NC 28779
Phone
(828) 586-7428
Enumerated
May 29, 2007
Record last updated
Nov 17, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(828) 586-7427
Medicare enrollment
Enrolled (PECOS I20100921001398); accepts Medicare assignment
Medical or professional school
University Of Cincinnati College Of Medicine, 2005
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 68 Hospital RD

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

  1. Martha Anderson, MDDiagnostic Radiology Physician1649223850
  2. Tyler Anderson, CRNACertified Registered Nurse Anesthetist1629651385
  3. Angela Arndt, MSED, LAT, ATCAthletic Trainer1114299229
  4. Katelyn Axman, DPTPhysical Therapist1659004471
  5. Lillian BairdAcute Care Nurse Practitioner1457981342
  6. Mary Baxley, SLPSpeech-Language Pathologist1194824607

Verify Casey Lee Prenger in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNorth Carolina Medical Board
    Search for license 200901153
    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 North 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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94% fewer Medicare Part D claims than the average internal medicine physician in 2024

205 Medicare Part D claims for 98 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 11 claims were for opioids.

  1. Casey Prenger205
  2. Specialty average3,176

Most prescribed

  1. Cefdinir32 claims
  2. Prednisone22 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): 96.1 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 score93.4
  2. Costout of 100 · 30%77.8
  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).

Bills Medicare through one group practice

  1. Hospital Physician Services - Southeast Professional CorporationSylva, NC

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

Casey Lee Prenger among 4,056 internal medicine physician records in North Carolina

Casey Lee Prenger, MD is one of 4,056 internal medicine physician records with a practice address in North Carolina. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 48% of them.

  • NPI issued2007 · 48% of these records are older, 43% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated2005 · median 2004 among the 2,706 with a school on file
  • Record last updated2016 · 48% 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 North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

13 internal medicine physician records list a practice address in Sylva

They are 13 of the 554 NPPES records with a practice address in Sylva, and 4,056 internal medicine physician records in North Carolina.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Ofelia Balta, M.D.Sylva, NC 287791912980178
  2. David Dennison, MDSylva, NC 287791457345902
  3. Elizabeth Dixon, MDSylva, NC 287791558328062
  4. Frederick Dressler, MDSylva, NC 287791669451233
  5. Michael Lawrence, MDSylva, NC 287791215687587
  6. Daniel Mackey, MDSylva, NC 287791013996362
  7. Clifford Mault, D.O.Sylva, NC 287791902870736
  8. R Nixon, MDSylva, NC 287791902863459

Common questions

What is Casey Lee Prenger, MD's NPI number?

Casey Lee Prenger, MD's National Provider Identifier (NPI) is 1578764684, issued on May 29, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Casey Lee Prenger, MD located?

The NPPES record lists a practice address at 68 Hospital RD, Sylva, NC, 28779. Phone: (828) 586-7428. Providers update this record themselves, so call before visiting.

How can I verify Casey Lee Prenger, MD's license?

NPPES lists North Carolina license number 200901153, as entered by the provider. Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Casey Lee Prenger, MD prescribe under Medicare Part D?

In 2024, Casey Lee Prenger, MD had 205 Medicare Part D claims for 98 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Casey Lee Prenger, MD's MIPS final score?

The 2023 MIPS final score is 96.1 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.