Doctor profile · Federal record
Dr. Dean Delmastro, MD
Internal Medicine Physician (CMS: Hematology/Oncology) · Hematology & Oncology Physician · Eau Claire, WI
- NPI 1699875922
- Accepts Medicare
- MIPS 76.2 / 100 · 2023
- 38 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
900 W Clairemont Ave
Eau Claire, WI 54701
(715) 839-3956 - Mailing address
-
1000 N Oak Ave
Marshfield, WI 544495777
Credentials & registration
- NPI registered
- September 2006 — 20 yrs on file
- Profile last updated
- September 11, 2025
- Year of graduation
- 1988 — 38 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Wisconsin #37184
- Medicaid
- WI #32169800
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1699875922. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
680
Distinct HCPCS
6
Medicare allowed
$58,196
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 377 | 128 | $93 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 161 | 16 | $76 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 73 | 59 | $63 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 36 | 14 | $47 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 20 | 13 | $131 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 13 | 11 | $166 |
In context: peer comparison
Among 16 peers in Eau Claire Internal Medicine Physician, average services per provider: 80. This provider delivers 8.5× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
408
Patients
53
Total drug cost
$1,229,538
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Anastrozole | Generic | 62 | 19 | $1,232 |
| Dexamethasone | Generic | 62 | 20 | $528 |
| Revlimid (Lenalidomide) | Brand | 40 | 0 | $691,391 |
| Prednisone | Generic | 35 | 0 | $251 |
| Imatinib Mesylate | Generic | 34 | 0 | $38,844 |
| Hydroxyurea | Generic | 25 | 0 | $829 |
| Potassium Chloride | Generic | 25 | 0 | $552 |
| Abiraterone Acetate | Generic | 21 | 0 | $35,172 |
| Eliquis (Apixaban) | Brand | 16 | 0 | $9,507 |
| Prochlorperazine Maleate | Generic | 16 | 14 | $327 |
Hospital affiliations
Frequently asked questions
What is Dr. Dean Delmastro's medical specialty?
Dr. Dean Delmastro practices Internal Medicine Physician in Eau Claire, WI.
Where does Dr. Dean Delmastro practice?
Dr. Dean Delmastro practices at 900 W Clairemont Ave, Eau Claire, WI 54701. Office phone: 7158393956.
What is Dr. Dean Delmastro's NPI?
Dr. Dean Delmastro's National Provider Identifier (NPI) is 1699875922, issued by NPPES.
Does Dr. Dean Delmastro accept Medicare assignment?
Yes. Dr. Dean Delmastro accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Dean Delmastro commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.