Dr. Joan M. Dahmer, MD
- Medicare services, 2024
- 1,897
- Medicare patients, 2024
- 476
- Part D claims, 2024
- 1,041
- Hospital affiliations
- 5
- Industry payments
- $8,604
- Practice address
- 250 East Dunlap Avenue, Phoenix, AZ 85020
- Practice phone
- Call (602) 943-2381
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Dahmer's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Joan M. Dahmer is a hematologist and oncologist in Phoenix, Arizona
Dr. Dahmer practices at HonorHealth John C. Lincoln Medical Center in Phoenix, Arizona, part of HonorHealth.
Dr. Dahmer's NPI, 1417954785, was assigned on July 1, 2005. Dr. Dahmer holds Arizona license 29673.
- NPI
- 1417954785NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5890766992
- NPI enumeration date
- July 1, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (602) 943-2381
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Joan M. Dahmer practices at HonorHealth John C. Lincoln Medical Center in Phoenix, Arizona
Dr. Dahmer's primary practice is HonorHealth John C. Lincoln Medical Center, at 250 East Dunlap Avenue, Phoenix, AZ 85020 in Maricopa County. The practice phone is (602) 943-2381.
- HonorHealth John C. Lincoln Medical Center250 East Dunlap Avenue, Phoenix, AZ 85020 · Maricopa CountyPhone(602) 943-2381
Source: Dmand AI Affiliation Data
Dr. Joan M. Dahmer is affiliated with 6 sites of care and 1 medical group
Dr. Dahmer's primary practice is HonorHealth John C. Lincoln Medical Center in Phoenix, Arizona, part of HonorHealth. Dr. Dahmer is also affiliated with Banner Estrella Medical Center. The medical group on file is HonorHealth Medical Group. Dmand AI also links Dr. Dahmer to 3 more hospitals and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Joan M. Dahmer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Dahmer practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| HonorHealth John C. Lincoln Medical Center | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across HonorHealth and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Joan M. Dahmer is one of 259 hematologists and oncologists in Arizona
Hematology and oncology is Dr. Dahmer's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Dahmer is licensed in Arizona.
Specialties and state licenses
- Hematology and oncology, ArizonaPrimary
Hematologists and oncologists near Dr. Dahmer
Counts of hematologists and oncologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Joan M. Dahmer billed Medicare for 1,897 services in 2024
CMS data shows 1,897 Medicare services from Dr. Dahmer across 10 procedure codes in 2024, for 476 Medicare patients. Medicare paid $99,112 for them.
Dr. Dahmer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,3472024: 1,14815%
- Other services
- 2023: 1182024: 749535%
Where Dr. Dahmer's Medicare services took place, 2024
- In an office1,71991%
- In a facility1789%
Dr. Dahmer compared with the Arizona median for hematologists and oncologists, 2024
- Dr. Dahmer
- Arizona median
- Medicare services
- 1,897vs 2,70530% below
- Medicare patients
- 476vs 37029% above
- Part D claims
- 863vs 4042.1 times
Medians across 249 hematologists and oncologists in Arizona with Dmand AI profiles that report each measure.
Dr. Dahmer's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Dahmer and other hematologists and oncologists in Arizona.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Joan M. Dahmer treated 476 Medicare patients in 2024, average age 76
CMS counts 476 Medicare patients who saw Dr. Dahmer in 2024. The largest group is 75 to 84, with 215 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 5% are also on Medicaid. Their average risk score is 1.78, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Dahmer's median patient age at 75, with 65% women.
Dr. Dahmer's Medicare patients by age, 2024
Dr. Dahmer's Medicare patients by sex, 2024
- Women32268%
- Men15432%
Chronic conditions among Dr. Dahmer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis50%
- Cancer50%
- Chronic kidney disease41%
- Ischemic heart disease34%
- Diabetes28%
- Osteoporosis27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Dahmer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women65%
- Men33%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Joan M. Dahmer wrote 1,041 Medicare Part D claims in 2024
In 2024, Dr. Dahmer wrote 1,041 Medicare Part D claims for 232 patients. 73% of them were for generic drugs. CMS names the drug for 863 of them, across 27 drugs with 11 or more claims each, at $2,382,421 in total drug cost. In 2023, CMS named 910 claims across 30 drugs.
Dr. Dahmer's Part D claims by kind of drug, 2024
- Generic760 claims73%
- Brand-name281 claims27%
Dr. Dahmer's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Dahmer's Part D claims, 2024
- Opioids8%80 of 1,041 claims
- Antibiotics1%13 of 1,041 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 9102024: 8635%
Drugs named by CMS: 27 in 2024, 30 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Joan M. Dahmer offers telehealth to Medicare patients
Dr. Dahmer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Dahmer as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Joan M. Dahmer received $8,604 in industry payments from 2016 to 2025
CMS Open Payments shows 368 general payments to Dr. Dahmer from 45 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 79% of the total. Exelixis Inc. paid the most, $1,774.
General payments to Dr. Dahmer by program year, 2016 to 2025
General payments to Dr. Dahmer by kind, 2016 to 2025
- Food and beverage$6,81879%
- Consulting fees$1,40016%
- Education$2052%
- Travel and lodging$1812%
Companies that paid Dr. Dahmer the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Joan M. Dahmer's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Joan M. Dahmer
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Joan M. Dahmer's NPI number?
Dr. Joan M. Dahmer's NPI number is 1417954785. It was assigned on July 1, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Joan M. Dahmer?
Dr. Joan M. Dahmer is a hematologist and oncologist in Phoenix, Arizona. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Joan M. Dahmer practice?
Dr. Dahmer practices at 250 East Dunlap Avenue, Phoenix, AZ 85020. Dr. Dahmer's primary practice is HonorHealth John C. Lincoln Medical Center in Phoenix, Arizona, part of HonorHealth. Dmand AI also links Dr. Dahmer to 3 hospitals and 1 group practice or clinic.
What is Dr. Joan M. Dahmer's office phone number?
The practice phone on file for Dr. Dahmer is (602) 943-2381.
What is Dr. Joan M. Dahmer's medical license number?
Dr. Dahmer holds Arizona license 29673.
Which hospitals is Dr. Joan M. Dahmer affiliated with?
Dr. Dahmer practices at HonorHealth John C. Lincoln Medical Center in Phoenix, Arizona. Dr. Dahmer is also affiliated with Banner Estrella Medical Center. Dmand AI links Dr. Dahmer to 3 more hospitals.
What medical group is Dr. Joan M. Dahmer part of?
Dr. Dahmer is linked to HonorHealth Medical Group.
Does Dr. Joan M. Dahmer accept Medicare?
Yes. CMS data shows Dr. Dahmer billed Medicare for 1,897 services in 2024, and Dr. Dahmer accepts Medicare assignment.
Does Dr. Joan M. Dahmer offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Dahmer as offering telehealth services.
How many Medicare patients does Dr. Joan M. Dahmer see?
CMS counts 476 Medicare patients who saw Dr. Dahmer in 2024, with an average age of 76.
Show 4 more questionsShow fewer questions
What services does Dr. Joan M. Dahmer bill to Medicare?
In 2024, Dr. Dahmer's most billed Medicare services were medicare service (G2211), office visit, established patient (99214) and office visit, established patient (99213).
What drugs does Dr. Joan M. Dahmer prescribe most?
In 2024 Medicare Part D data, Dr. Dahmer's most prescribed drugs by claims were Letrozole, Anastrozole and Calquence.
Has Dr. Joan M. Dahmer received payments from drug or device companies?
CMS Open Payments shows $8,604 in general payments to Dr. Dahmer from 45 companies from 2016 to 2025. The largest total came from Exelixis Inc.
How long has Dr. Joan M. Dahmer been practicing?
Dr. Dahmer graduated from medical school in 1982, 44 years ago.
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