Dr. Daniel Fleming Hayes, MD
- Medicare services, 2022
- 58
- Part D claims, 2023
- 60
- Industry payments
- $32,264
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 1500 E Medical Center Dr, Ann Arbor, MI 48109
- Practice phone
- Call (734) 936-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Hayes' 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. Daniel Fleming Hayes is a medical oncologist in Ann Arbor, Michigan
Dr. Hayes practices in Ann Arbor, Michigan.
Dr. Hayes' NPI, 1124184965, was assigned on December 28, 2006. Dr. Hayes graduated from Indiana University School of Medicine in 1979. Dr. Hayes holds Michigan license 4301078842.
- NPI
- 1124184965NPI Registry (opens in a new tab)
- NPI enumeration date
- December 28, 2006
- NPI status
- Active
- Practice phone
- (734) 936-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 73
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Daniel Fleming Hayes' practice address is in Ann Arbor, Michigan
Dr. Hayes' practice address in the NPI Registry is 1500 E Medical Center Dr, Ann Arbor, MI 48109, in Washtenaw County. The practice phone is (734) 936-4000.
- NPI Registry address1500 E Medical Center Dr, Ann Arbor, MI 48109 · Washtenaw CountyPhone(734) 936-4000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Daniel Fleming Hayes' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hayes practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Hayes' practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Daniel Fleming Hayes is one of 171 medical oncologists in Michigan
Medical oncology is Dr. Hayes' primary specialty in the NPI Registry, under taxonomy code 207RX0202X. Dr. Hayes is licensed in Michigan.
Specialties and state licenses
- Medical oncology, MichiganPrimary
Medical oncologists near Dr. Hayes
Counts of medical 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. Daniel Fleming Hayes billed Medicare for 58 services in 2022
CMS data shows 58 Medicare services from Dr. Hayes across 2 procedure codes in 2022, all of them office visits. Medicare paid $5,372 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Hayes' Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 652022: 5811%
Dr. Hayes compared with the Michigan median for medical oncologists, 2022
- Dr. Hayes
- Michigan median
- Medicare services
- 58vs 36484% below
- Part D claims
- 60vs 33482% below
Medians across 165 medical oncologists in Michigan with Dmand AI profiles that report each measure.
Dr. Hayes' most billed Medicare procedure codes, 2022
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. Hayes and other medical oncologists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Daniel Fleming Hayes' patients have a median age of 59
Across all payers, Dmand AI patient panel data puts Dr. Hayes' median patient age at 59, with 100% women.
Dr. Hayes' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Daniel Fleming Hayes wrote 60 Medicare Part D claims in 2023
In 2023, Dr. Hayes wrote 60 Medicare Part D claims. Every claim was for a generic drug. They cover 4 drugs, with $6,970 in total drug cost. In 2022, CMS named 141 claims across 4 drugs.
Dr. Hayes' most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 1412023: 6057%
Drugs named by CMS: 4 in 2023, 4 in 2022.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Daniel Fleming Hayes received $32,264 in industry payments from 2017 to 2024
CMS Open Payments shows 22 general payments to Dr. Hayes from 4 drug and device companies from 2017 to 2024. Consulting fees make up the largest share, 80% of the total. Cepheid paid the most, $29,414.
General payments to Dr. Hayes by program year, 2017 to 2024
General payments to Dr. Hayes by kind, 2017 to 2024
- Consulting fees$25,71080%
- Travel and lodging$5,92718%
- Food and beverage$6272%
Companies that paid Dr. Hayes the most, 2017 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Daniel Fleming Hayes graduated from Indiana University School of Medicine
Dr. Hayes graduated from Indiana University School of Medicine in 1979.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Daniel Fleming Hayes'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Daniel Fleming Hayes
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. Daniel Fleming Hayes' NPI number?
Dr. Daniel Fleming Hayes' NPI number is 1124184965. It was assigned on December 28, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Daniel Fleming Hayes?
Dr. Daniel Fleming Hayes is a medical oncologist in Ann Arbor, Michigan. The primary specialty in the NPI Registry is Medical Oncology Physician (taxonomy code 207RX0202X).
Where does Dr. Daniel Fleming Hayes practice?
Dr. Hayes practices at 1500 E Medical Center Dr, Ann Arbor, MI 48109.
What is Dr. Daniel Fleming Hayes' office phone number?
The practice phone on file for Dr. Hayes is (734) 936-4000.
What is Dr. Daniel Fleming Hayes' medical license number?
Dr. Hayes holds Michigan license 4301078842.
Does Dr. Daniel Fleming Hayes accept Medicare?
Yes. CMS data shows Dr. Hayes billed Medicare for 58 services in 2022.
What services does Dr. Daniel Fleming Hayes bill to Medicare?
In 2022, Dr. Hayes' most billed Medicare services were office visit, established patient (99215) and office visit, established patient (99214).
Where did Dr. Daniel Fleming Hayes go to medical school?
Dr. Hayes graduated from Indiana University School of Medicine in 1979.
What drugs does Dr. Daniel Fleming Hayes prescribe most?
In 2023 Medicare Part D data, Dr. Hayes' most prescribed drugs by claims were Anastrozole, Exemestane and Letrozole.
Has Dr. Daniel Fleming Hayes received payments from drug or device companies?
CMS Open Payments shows $32,264 in general payments to Dr. Hayes from 4 companies from 2017 to 2024. The largest total came from Cepheid.
How long has Dr. Daniel Fleming Hayes been practicing?
Dr. Hayes graduated from medical school in 1979, 47 years ago.
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