Mark Niehaus, MD
NPI 1972541548 · Internal Medicine Physician · Charlottesville, VA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Niehaus, MD is a Internal Medicine Physician provider in Charlottesville, VA (NPI 1972541548).
Provider details
- NPI number
- 1972541548
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 0101234414 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,688 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 388 | $129 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 352 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 231 | $133 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 174 | $91 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 121 | $17 |
| Administration of Pneumococcal Vaccine |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 100 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 467 | 143 |
| Levothyroxine Sodium | 226 | 64 |
| Lisinopril | 220 | 63 |
| Amlodipine Besylate | 200 | 59 |
| Rosuvastatin Calcium | 168 | 54 |
| Gabapentin | 152 | 42 |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-03
- Last updated
- 2025-04-07
- Certified
- 2025-04-07
Frequently asked questions
- What is Mark Niehaus's NPI number?
- Mark Niehaus's National Provider Identifier (NPI) is 1972541548, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Niehaus's specialty?
- Mark Niehaus is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Niehaus located?
- Mark Niehaus's practice location on file with NPPES is 416 Albemarle Sq, Charlottesville, VA 22901-7400.
- What is Mark Niehaus's phone number?
- The practice phone number listed in the NPPES registry for Mark Niehaus is (434) 422-1919.
- Does Mark Niehaus accept Medicare?
- Mark Niehaus is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Niehaus's NPI active?
- Yes — Mark Niehaus's NPI (1972541548) is active in the NPPES registry as of the last update on 2025-04-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.