NPPES file of Aug 9, 2026

Mark D. Niehaus, MD

Internal Medicine Physician · Charlottesville, VA

Mark D. Niehaus, MD is an internal medicine physician with a practice address in Charlottesville, Virginia, and NPI 1972541548, issued on Jun 3, 2006. Check the license (Virginia 0101234414, as entered in NPPES) on the Virginia Department of Health Professions; 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
1972541548
Name
Mark D. Niehaus
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
0101234414 VA
Self-reported in NPPES; status is on the state search
Practice location
416 Albemarle SQ, Charlottesville, VA 22901
Phone
(434) 422-1919
Enumerated
Jun 3, 2006
Record last updated
Apr 7, 2025
Fax
(434) 402-4510
Medicare enrollment
Enrolled (PECOS I20080229000465); accepts Medicare assignment
Medical or professional school
Warren Alpert Medical School Of Brown University, 2003
Telehealth
Offers telehealth (CMS)
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 416 Albemarle SQ

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

  1. Melanie Brooks, OTOccupational Therapist1730964487
  2. Julia Bruneau, PTPhysical Therapist1568423382
  3. Lauren ChampOccupational Therapist1710808258
  4. Amy Pfeil, M.S. CCC-SLPSpeech-Language Pathologist1114518792
  5. Jane Shaw, MDFamily Medicine Physician1093789232
  6. Caleb Wilson, M.A., CCC-SLPSpeech-Language Pathologist1366089989

Verify Mark D. Niehaus in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersVirginia Department of Health Professions
    Search for license 0101234414
    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 Virginia 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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79% more Medicare Part D claims than the average internal medicine physician in 2024

5,683 Medicare Part D claims for 451 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 190 claims were for opioids.

  1. Mark Niehaus5,683
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium467 claims
  2. Levothyroxine Sodium226 claims
  3. Lisinopril220 claims
  4. Amlodipine Besylate200 claims
  5. Rosuvastatin Calcium168 claims
  6. Gabapentin152 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 MIPS final score for 2023 (Medicare payment program): 95.1 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score86.3
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Bills Medicare through 2 group practices

  1. Martha Jefferson Medical Group LLCCrozet, VA
  2. Privia Medical Group, LLCManassas, VA

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

Mark D. Niehaus among 3,599 internal medicine physician records in Virginia

Mark D. Niehaus, MD is one of 3,599 internal medicine physician records with a practice address in Virginia. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 55% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2003 · median 2003 among the 2,234 with a school on file
  • Record last updated2025 · 53% 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 Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

148 internal medicine physician records list a practice address in Charlottesville

They are 148 of the 7,000 NPPES records with a practice address in Charlottesville, and 3,599 internal medicine physician records in Virginia.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Kiyoko Asao-Ragosta, M.D.Charlottesville, VA 229011710999347
  2. David Chesler, M.D.Charlottesville, VA 229011720090335
  3. Marian Chung, M.D.Charlottesville, VA 229011720489495
  4. Renee Fischer, MDCharlottesville, VA 229011982667226
  5. William Flowers, M.D.Charlottesville, VA 229011134120710
  6. Boris Gerber, MDCharlottesville, VA 229011588602296
  7. Robert Hodge, MDCharlottesville, VA 229011164471421
  8. Archibald Lord, M.D.Charlottesville, VA 229011427048446

Common questions

What is Mark D. Niehaus, MD's NPI number?

Mark D. Niehaus, MD's National Provider Identifier (NPI) is 1972541548, issued on Jun 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark D. Niehaus, MD located?

The NPPES record lists a practice address at 416 Albemarle SQ, Charlottesville, VA, 22901. Phone: (434) 422-1919. Providers update this record themselves, so call before visiting.

How can I verify Mark D. Niehaus, MD's license?

NPPES lists Virginia license number 0101234414, as entered by the provider. Search the Virginia Department of Health Professions at https://dhp.virginiainteractive.org/lookup/index. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mark D. Niehaus, MD prescribe under Medicare Part D?

In 2024, Mark D. Niehaus, MD had 5,683 Medicare Part D claims for 451 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Mark D. Niehaus, MD's MIPS final score?

The 2023 MIPS final score is 95.1 of 100. 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.