Thomas Witzig, M.D.
NPI 1508846791 · Hematology (Internal Medicine) Physician · Rochester, MN
Enrolled with Medicare as Practitioner - Hematology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Witzig, M.D. is a Hematology (Internal Medicine) Physician provider in Rochester, MN (NPI 1508846791).
Provider details
- NPI number
- 1508846791
- Entity type
- Individual
- Primary specialty
- Hematology (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 27220 (MN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
356 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 109 | $182 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 94 | $130 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, 1 Hour Or Less96365 | 57 | $65 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, Each Additional Hour96366 | 28 | $21 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 25 | $15 |
| 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'S |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Acyclovir | 66 | 17 |
| Prednisone | 42 | 19 |
| Ondansetron Hcl | 16 | — |
| Zanubrutinibbrand: Brukinsa | 15 | — |
| Pantoprazole Sodium | 13 | — |
| Prochlorperazine Maleate | 13 | 12 |
| Gabapentin | 12 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$17,382 across 15 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-23
- Last updated
- 2020-08-21
- Certified
- 2020-08-21
Frequently asked questions
- What is Thomas Witzig's NPI number?
- Thomas Witzig's National Provider Identifier (NPI) is 1508846791, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Witzig's specialty?
- Thomas Witzig is listed in the NPPES registry with a primary specialty of Hematology (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Witzig located?
- Thomas Witzig's practice location on file with NPPES is 200 1st St Sw, Rochester, MN 55905-0001.
- What is Thomas Witzig's phone number?
- The practice phone number listed in the NPPES registry for Thomas Witzig is (507) 284-2511.
- Does Thomas Witzig accept Medicare?
- Thomas Witzig is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Witzig's NPI active?
- Yes — Thomas Witzig's NPI (1508846791) is active in the NPPES registry as of the last update on 2020-08-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.