Ryan Mattison, MD
NPI 1538184825 · Hematology & Oncology Physician · Madison, WI
Enrolled with Medicare as Practitioner - Hematopoietic Cell Transplantation and Cellular Therapy · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ryan Mattison, MD is a Hematology & Oncology Physician provider in Madison, WI (NPI 1538184825).
Provider details
- NPI number
- 1538184825
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 52901 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
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
711 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 | 243 | $15 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 157 | $89 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 111 | $61 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 103 | $110 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 81 | $9 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Acyclovir | 159 | 31 |
| Imatinib Mesylate | 75 | — |
| Ruxolitinib Phosphatebrand: Jakafi | 75 | — |
| Hydroxyurea | 54 | 13 |
| Montelukast Sodium | 28 | — |
| Mirtazapine | 26 | — |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 22 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-13
- Last updated
- 2021-02-01
- Certified
- 2021-02-01
Frequently asked questions
- What is Ryan Mattison's NPI number?
- Ryan Mattison's National Provider Identifier (NPI) is 1538184825, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ryan Mattison's specialty?
- Ryan Mattison is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Ryan Mattison located?
- Ryan Mattison's practice location on file with NPPES is 600 Highland Ave, Madison, WI 53792.
- What is Ryan Mattison's phone number?
- The practice phone number listed in the NPPES registry for Ryan Mattison is (608) 265-1700.
- Does Ryan Mattison accept Medicare?
- Ryan Mattison is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ryan Mattison's NPI active?
- Yes — Ryan Mattison's NPI (1538184825) is active in the NPPES registry as of the last update on 2021-02-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.