Dean Delmastro, MD
NPI 1699875922 · Internal Medicine Physician · Eau Claire, WI
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dean Delmastro, MD is a Internal Medicine Physician provider in Eau Claire, WI (NPI 1699875922).
Provider details
- NPI number
- 1699875922
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 37184 (WI)
Specialties & taxonomies
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
527 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 | 376 | $90 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 85 | $61 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 31 | $73 |
| 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 | 21 | $15 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 14 | $134 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 28 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 95 | 26 |
| Prednisone | 66 | 19 |
| Dexamethasone | 59 | 23 |
| Gabapentin | 39 | — |
| Lenalidomidebrand: Revlimid | 36 | — |
| Imatinib Mesylate | 35 | — |
| Apixabanbrand: Eliquis | 26 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-25
- Last updated
- 2025-09-11
Frequently asked questions
- What is Dean Delmastro's NPI number?
- Dean Delmastro's National Provider Identifier (NPI) is 1699875922, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dean Delmastro's specialty?
- Dean Delmastro is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Dean Delmastro located?
- Dean Delmastro's practice location on file with NPPES is 900 W Clairemont Ave, Eau Claire, WI 54701.
- What is Dean Delmastro's phone number?
- The practice phone number listed in the NPPES registry for Dean Delmastro is (715) 839-3956.
- Does Dean Delmastro accept Medicare?
- Dean Delmastro is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dean Delmastro's NPI active?
- Yes — Dean Delmastro's NPI (1699875922) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.