Dr. Gerald K. Bayer, MD
- Publications
- 1
- Clinical trials
- 1
- Industry payments
- $171
- State licenses
- 2
- Year NPI issued
- 2006
- Practice address
- 114 Woodland St, Hartford, CT 06105
- Practice phone
- Call (920) 432-6049
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Bayer'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. Gerald K. Bayer is a medical oncologist in Hartford, Connecticut
Dr. Bayer practices in Hartford, Connecticut.
Dr. Bayer's NPI, 1285726729, was assigned on September 29, 2006. Dr. Bayer holds Wisconsin license 22282.
- NPI
- 1285726729NPI Registry (opens in a new tab)
- NPI enumeration date
- September 29, 2006
- NPI status
- Active
- Practice phone
- (920) 432-6049
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Gerald K. Bayer's practice address is in Hartford, Connecticut
Dr. Bayer's practice address in the NPI Registry is 114 Woodland St, Hartford, CT 06105, in Capitol County. The practice phone is (920) 432-6049.
- NPI Registry address114 Woodland St, Hartford, CT 06105 · Capitol CountyPhone(920) 432-6049
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Gerald K. Bayer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bayer practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Bayer's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gerald K. Bayer is one of 80 medical oncologists in Connecticut
Medical oncology is Dr. Bayer's primary specialty in the NPI Registry, under taxonomy code 207RX0202X. Dmand AI has Dr. Bayer's licenses on file in 2 states: Wisconsin and Michigan.
Specialties and state licenses
- Medical oncology, WisconsinPrimary
- Michigan license
Medical oncologists near Dr. Bayer
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. Gerald K. Bayer has 1 publication on record
Dmand AI links 1 paper to Dr. Bayer. Dr. Bayer's most frequent co-authors are Joshua K. Mondschein, MD, Mary F. Mulcahy, MD and David I. Rosenthal, MD.
Dr. Bayer's most frequent co-authors
- Joshua K. Mondschein, MD1 shared paper
- Mary F. Mulcahy, MD1 shared paper
- David I. Rosenthal, MD1 shared paper
Recent publications by Dr. Bayer
See who Dr. Bayer researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Bayer works with, so you can find a warm path to the right medical oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Gerald K. Bayer has worked on 1 clinical trial
Dmand AI links Dr. Bayer to 1 clinical trial. Conditions studied include Leukemia, Megakaryoblastic, Acute and Leukemia, Erythroblastic, Acute.
Conditions in Dr. Bayer's trials
- Leukemia, Megakaryoblastic, Acute
- Leukemia, Erythroblastic, Acute
Investigators on the most trials with Dr. Bayer
- Jessica Kaplan Altman, MD1 shared trial
- Faiz Anwer, MD1 shared trial
- Ehab L. Atallah, MD1 shared trial
Recent clinical trials with Dr. Bayer
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Gerald K. Bayer received $171 in industry payments from 2018 to 2019
CMS Open Payments shows 2 general payments to Dr. Bayer from 1 drug or device company from 2018 to 2019. Food and beverage make up the largest share, 100% of the total. Bristol-Myers Squibb Company paid the most, $171.
General payments to Dr. Bayer by program year, 2018 to 2019
Companies that paid Dr. Bayer the most, 2018 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Gerald K. Bayer'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 |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (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. Gerald K. Bayer
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. Gerald K. Bayer's NPI number?
Dr. Gerald K. Bayer's NPI number is 1285726729. It was assigned on September 29, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gerald K. Bayer?
Dr. Gerald K. Bayer is a medical oncologist in Hartford, Connecticut. The primary specialty in the NPI Registry is Medical Oncology Physician (taxonomy code 207RX0202X).
Where does Dr. Gerald K. Bayer practice?
Dr. Bayer practices at 114 Woodland St, Hartford, CT 06105.
What is Dr. Gerald K. Bayer's office phone number?
The practice phone on file for Dr. Bayer is (920) 432-6049.
What is Dr. Gerald K. Bayer's medical license number?
Dr. Bayer holds Wisconsin license 22282, one of the licenses on file in 2 states.
Which states has Dr. Gerald K. Bayer been licensed in?
Dmand AI has state licenses on file for Dr. Bayer in Wisconsin and Michigan.
Has Dr. Gerald K. Bayer received payments from drug or device companies?
CMS Open Payments shows $171 in general payments to Dr. Bayer from 1 company from 2018 to 2019. The largest total came from Bristol-Myers Squibb Company.
How long has Dr. Gerald K. Bayer been practicing?
Dr. Bayer's NPI was assigned in 2006.
Does Dr. Gerald K. Bayer do research?
Dmand AI links 1 publication to Dr. Bayer. Dr. Bayer has worked on 1 clinical trial.
Who does Dr. Gerald K. Bayer publish with?
Dr. Bayer's most frequent co-authors are Joshua K. Mondschein, MD (1 shared paper), Mary F. Mulcahy, MD (1 shared paper) and David I. Rosenthal, MD (1 shared paper).
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