Joan Dahmer, M.D.
NPI 1417954785 · Hematology & Oncology Physician · Peoria, AZ
Enrolled with Medicare as Practitioner - Hematology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joan Dahmer, M.D. is a Hematology & Oncology Physician provider in Peoria, AZ (NPI 1417954785).
Provider details
- NPI number
- 1417954785
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 29673 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,897 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 612 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 491 | $98 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 314 | $69 |
| Enhancing Oncology Model (eom) Monthly Enhanced Oncology Services (meos) Payment for Eom Enhanced ServicesM0010 | 137 | $69 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 84 | $113 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Letrozole | 212 | 65 |
| Anastrozole | 83 | 25 |
| Acalabrutinib Maleatebrand: Calquence | 58 | — |
| Apixabanbrand: Eliquis | 49 | 17 |
| Oxycodone Hcl | 41 | — |
| Alendronate Sodium | 40 | — |
| Rivaroxabanbrand: Xarelto | 35 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$379 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 14674 W Mountain View Blvd Ste 105Surprise, AZ 85374-2707Phone: (623) 238-7410Fax: (623) 975-3902
Registry dates
- Enumerated
- 2005-07-01
- Last updated
- 2026-02-25
- Certified
- 2026-02-25
Frequently asked questions
- What is Joan Dahmer's NPI number?
- Joan Dahmer's National Provider Identifier (NPI) is 1417954785, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joan Dahmer's specialty?
- Joan Dahmer is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Joan Dahmer located?
- Joan Dahmer's practice location on file with NPPES is 15000 N 83rd Ave Unit 300, Peoria, AZ 85381-2004.
- What is Joan Dahmer's phone number?
- The practice phone number listed in the NPPES registry for Joan Dahmer is (623) 238-7490.
- Does Joan Dahmer accept Medicare?
- Joan Dahmer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joan Dahmer's NPI active?
- Yes — Joan Dahmer's NPI (1417954785) is active in the NPPES registry as of the last update on 2026-02-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.