Doctor profile · Federal record
Dr. Joan Dahmer, M.D.
Hematology & Oncology Physician (CMS: Hematology) · Peoria, AZ
- NPI 1417954785
- Accepts Medicare
- 44 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
15000 N 83Rd Ave Unit 300
Peoria, AZ 853812004
(623) 238-7490
fax (480) 882-5019 - Additional location
-
14674 W Mountain View Blvd Ste 105
Surprise, AZ 853742707
(623) 238-7410
fax (623) 975-3902
Credentials & registration
- NPI registered
- July 2005 — 21 yrs on file
- Profile last updated
- February 25, 2026
- Year of graduation
- 1982 — 44 yrs since
- Specialty taxonomy
- 207RH0003X — NUCC code
- State license (1)
- Arizona #29673
- Medicaid
- AZ #631102
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1417954785. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,465
Distinct HCPCS
10
Medicare allowed
$148,102
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 637 | 310 | $95 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 228 | 63 | $138 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 165 | 137 | $65 | |
M0010 |
Enhancing oncology model (eom) monthly enhanced oncology services (meos) payment for eom enhanced services | 118 | 34 | $69 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 103 | 49 | $114 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 91 | 91 | $130 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 65 | 41 | $77 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 35 | 33 | $159 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 12 | 12 | $160 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 11 | 11 | $80 |
In context: peer comparison
Among 3 peers in this city , average services per provider: 145. This provider delivers 10× the peer median.Open Payments
Industry payments received
All-time total
$379
Transactions
5
Manufacturers
5
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Inari Medical, Inc. | 1 | $194.01 | |
| EMD Serono, Inc. | 1 | $124.56 | |
| Novartis Pharmaceuticals Corporation | 1 | $25.62 | |
| Eisai Inc. | 1 | $20.74 | |
| PROGENICS PHARMACEUTICALS, INC. | 1 | $14.06 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
695
Patients
140
Total drug cost
$2,136,919
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Letrozole | Generic | 188 | 63 | $4,947 |
| Anastrozole | Generic | 103 | 33 | $2,909 |
| Eliquis (Apixaban) | Brand | 65 | 17 | $74,077 |
| Oxycodone Hcl | Generic | 47 | 0 | $704 |
| Xarelto (Rivaroxaban) | Brand | 40 | 11 | $45,060 |
| Calquence (Acalabrutinib Maleate) | Brand | 30 | 0 | $475,668 |
| Levothyroxine Sodium | Generic | 30 | 0 | $516 |
| Revlimid (Lenalidomide) | Brand | 30 | 0 | $488,256 |
| Prochlorperazine Maleate | Generic | 27 | 16 | $364 |
| Venclexta (Venetoclax) | Brand | 26 | 0 | $339,257 |
Hospital affiliations
Frequently asked questions
What is Dr. Joan Dahmer's medical specialty?
Dr. Joan Dahmer practices Hematology & Oncology Physician in Peoria, AZ.
Where does Dr. Joan Dahmer practice?
Dr. Joan Dahmer practices at 15000 N 83Rd Ave Unit 300, Peoria, AZ 853812004. Office phone: 6232387490.
What is Dr. Joan Dahmer's NPI?
Dr. Joan Dahmer's National Provider Identifier (NPI) is 1417954785, issued by NPPES.
Does Dr. Joan Dahmer accept Medicare assignment?
Yes. Dr. Joan Dahmer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Joan Dahmer commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.