John Witman
NPI 1033111448 · Family Medicine Physician · Harrisonburg, VA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Witman is a Family Medicine Physician provider in Harrisonburg, VA (NPI 1033111448).
Provider details
- NPI number
- 1033111448
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 0101057200 (VA)
Specialties & taxonomies
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
3,604 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) |
|---|---|---|
| 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 | 1,110 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 875 | $126 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 510 | $89 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 196 | $6 |
| Administration of Influenza Virus VaccineG0008 | 164 | $25 |
| Blood Test, Clotting Time |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 137 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 690 | 189 |
| Amlodipine Besylate | 565 | 138 |
| Levothyroxine Sodium | 511 | 126 |
| Lisinopril | 456 | 131 |
| Losartan Potassium | 344 | 108 |
| Hydrochlorothiazide | 325 | 92 |
| Sertraline Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-15
- Last updated
- 2009-12-11
Frequently asked questions
- What is John Witman's NPI number?
- John Witman's National Provider Identifier (NPI) is 1033111448, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Witman's specialty?
- John Witman is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Witman located?
- John Witman's practice location on file with NPPES is 1751 Erickson Ave, Harrisonburg, VA 22801-8555.
- What is John Witman's phone number?
- The practice phone number listed in the NPPES registry for John Witman is (540) 433-3344.
- Does John Witman accept Medicare?
- John Witman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Witman's NPI active?
- Yes — John Witman's NPI (1033111448) is active in the NPPES registry as of the last update on 2009-12-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.