James Volberding, M.D.
NPI 1629007125 · Internal Medicine Physician · Milwaukee, WI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Volberding, M.D. is a Internal Medicine Physician provider in Milwaukee, WI (NPI 1629007125).
Provider details
- NPI number
- 1629007125
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 25736 (WI)
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
19 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
1,409 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 | 651 | $116 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 229 | $114 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 107 | $82 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 96 | $66 |
| Administration of Influenza Virus VaccineG0008 | 84 | $30 |
| Initial Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 35 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 183 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 887 | 208 |
| Amlodipine Besylate | 655 | 160 |
| Losartan Potassium | 651 | 157 |
| Levothyroxine Sodium | 468 | 90 |
| Omeprazole | 391 | 82 |
| Apixabanbrand: Eliquis | 346 | 46 |
| Furosemide |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-30
- Last updated
- 2016-11-15
Frequently asked questions
- What is James Volberding's NPI number?
- James Volberding's National Provider Identifier (NPI) is 1629007125, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Volberding's specialty?
- James Volberding is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is James Volberding located?
- James Volberding's practice location on file with NPPES is 788 N Jefferson St, Milwaukee, WI 53202-3718.
- What is James Volberding's phone number?
- The practice phone number listed in the NPPES registry for James Volberding is (414) 272-8950.
- Does James Volberding accept Medicare?
- James Volberding is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Volberding's NPI active?
- Yes — James Volberding's NPI (1629007125) is active in the NPPES registry as of the last update on 2016-11-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.