Matthew Blum
NPI 1558892372 · Nephrology Physician · Madison, WI
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Blum is a Nephrology Physician provider in Madison, WI (NPI 1558892372).
Provider details
- NPI number
- 1558892372
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 82059 (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
9 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
843 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 | 181 | $15 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 170 | $72 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 125 | $98 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 84 | $9 |
| Hemodialysis Procedure With Physician Evaluation90935 | 68 | $66 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Calcitriol | 79 | 25 |
| Lisinopril | 65 | 19 |
| Losartan Potassium | 59 | 19 |
| Amlodipine Besylate | 58 | 23 |
| Furosemide | 35 | 13 |
| Empagliflozinbrand: Jardiance | 33 | — |
| Atorvastatin Calcium | 32 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-03-23
- Last updated
- 2026-01-30
- Certified
- 2026-01-30
Frequently asked questions
- What is Matthew Blum's NPI number?
- Matthew Blum's National Provider Identifier (NPI) is 1558892372, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Blum's specialty?
- Matthew Blum is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Blum located?
- Matthew Blum's practice location on file with NPPES is 600 Highland Ave, Madison, WI 53792-0020.
- What is Matthew Blum's phone number?
- The practice phone number listed in the NPPES registry for Matthew Blum is (608) 262-5420.
- Does Matthew Blum accept Medicare?
- Matthew Blum is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Blum's NPI active?
- Yes — Matthew Blum's NPI (1558892372) is active in the NPPES registry as of the last update on 2026-01-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.