AdenocarcinomaAntineoplastic Agents, PhytogenicAntineoplastic Combined Chemotherapy Protocols
Dr. John C. Winkelmann, MD
NPI1144214446
- Medicare services, 2021
- 112
- Part D claims, 2021
- 229
- Publications
- 23
- Industry payments
- $305
- Insurance carriers
- 2
- Practice address
- 1968 Peachtree NW Rd, Atlanta, GA 30309
- Practice phone
- Call (859) 301-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Winkelmann'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. John C. Winkelmann is a hematologist and oncologist in Atlanta, Georgia
Dr. Winkelmann practices in Atlanta, Georgia.
Dr. Winkelmann's NPI, 1144214446, was assigned on September 1, 2005. Dr. Winkelmann graduated from University Of Minnesota Medical School in 1981. Dr. Winkelmann's Kentucky license number on file is 33840.
NPI and contact details
- NPI
- 1144214446NPI Registry (opens in a new tab)
- NPI enumeration date
- September 1, 2005
- NPI status
- Active
- Practice phone
- (859) 301-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. John C. Winkelmann's practice address is in Atlanta, Georgia
Dr. Winkelmann's practice address in the NPI Registry is 1968 Peachtree NW Rd, Atlanta, GA 30309, in Fulton County. The practice phone is (859) 301-4000.
- NPI Registry address1968 Peachtree NW Rd, Atlanta, GA 30309 · Fulton CountyPhone(859) 301-4000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. John C. Winkelmann's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Winkelmann practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Winkelmann's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John C. Winkelmann is one of 379 hematologists and oncologists in Georgia
Hematology and oncology is Dr. Winkelmann's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dmand AI has Dr. Winkelmann's licenses on file in 4 states: Kentucky, Ohio, Minnesota and Texas.
Specialties and state licenses
- Hematology and oncology, KentuckyPrimary
- Ohio license
- Minnesota license
- Texas license
Hematologists and oncologists near Dr. Winkelmann
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. John C. Winkelmann billed Medicare for 112 services in 2021
CMS data shows 112 Medicare services from Dr. Winkelmann across 2 procedure codes in 2021, all of them office visits. Medicare paid $4,181 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2021112
Paid by Medicare$4,181
Procedure codes2
Dr. Winkelmann's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 1,0272021: 11289%
Dr. Winkelmann compared with the Georgia median for hematologists and oncologists, 2021
- Dr. Winkelmann
- Georgia median
- Medicare services
- 112vs 69184% below
- Part D claims
- 229vs 67566% below
Medians across 350 hematologists and oncologists in Georgia with Dmand AI profiles that report each measure.
Dr. Winkelmann's most billed Medicare procedure codes, 2021
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Winkelmann?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Winkelmann and other hematologists and oncologists in Georgia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John C. Winkelmann's patients have a median age of 76
Across all payers, Dmand AI patient panel data puts Dr. Winkelmann's median patient age at 76, with 67% women.
Dr. Winkelmann's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women67%
- Men33%
Source: Dmand AI Patient Panel Data
Dr. John C. Winkelmann wrote 229 Medicare Part D claims in 2021
In 2021, Dr. Winkelmann wrote 229 Medicare Part D claims. They cover 15 drugs, with $496,322 in total drug cost. In 2020, CMS named 1,339 claims across 38 drugs.
Part D claims, 2021229
Drugs named by CMS15
Total drug cost$496,322
Dr. Winkelmann's most prescribed drugs by claims, 2021
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, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 1,3392021: 22983%
Drugs named by CMS: 15 in 2021, 38 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. John C. Winkelmann has 23 publications on record
Dmand AI links 23 papers to Dr. Winkelmann, published from 2006 to 2014. The most frequent topics are Base Sequence, Molecular Sequence Data and RNA, Messenger. Dr. Winkelmann has published most often in Blood. Dr. Winkelmann's most frequent co-authors are David J. Dicaudo, MD, Yolanda Daniela Farhey, MD and W Leroy Griffing, MD.
Papers23
Years published2006 to 2014
Topics Dr. Winkelmann writes about most
- Base Sequence
- Molecular Sequence Data
- RNA, Messenger
- Spectrin
- DNA
- Receptors, Erythropoietin
- Amino Acid Sequence
- Erythrocytes
Dr. Winkelmann's most frequent co-authors
- David J. Dicaudo, MD1 shared paper
- Yolanda Daniela Farhey, MD1 shared paper
- W Leroy Griffing, MD1 shared paper
Recent publications by Dr. Winkelmann
Amino Acid MotifsBase SequenceBlood Proteins
J Natl Compr Canc Netw
Delivery of Health CareMedical OncologyPatient Protection and Affordable Care Act
See who Dr. Winkelmann researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Winkelmann works with, so you can find a warm path to the right hematologists and oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John C. Winkelmann received $305 in industry payments from 2020 to 2025
CMS Open Payments shows 11 general payments to Dr. Winkelmann from 4 drug and device companies from 2020 to 2025. Food and beverage make up the largest share, 95% of the total. Sanofi Pasteur Inc. paid the most, $204.
General payments to Dr. Winkelmann by program year, 2020 to 2025
General payments to Dr. Winkelmann by kind, 2020 to 2025
$305in total
- Food and beverage$28995%
- Education$165%
Companies that paid Dr. Winkelmann the most, 2020 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John C. Winkelmann has 1 award and honors on record
Dmand AI lists 1 award for Dr. Winkelmann, most recently CMS Stage 1 2012 in 2012.
Awards and honors for Dr. Winkelmann
- 2012
- CMS Stage 1 2012
Source: Dmand AI Professional Profile Data
Dr. John C. Winkelmann graduated from University Of Minnesota Medical School
Dr. Winkelmann graduated from University Of Minnesota Medical School in 1981. Dr. Winkelmann is a member of ASCO.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. John C. Winkelmann accepts plans from 2 insurance carriers
Dr. Winkelmann is in network with 2 carriers, including KY State Medicaid and Molina. Medicaid plans come from the most carriers, 2. Check the plan with the practice before a visit.
- KY State Medicaid
- Molina
Source: Dmand AI Insurance Network Data
Sources for Dr. John C. Winkelmann'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. John C. Winkelmann
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. John C. Winkelmann's NPI number?
Dr. John C. Winkelmann's NPI number is 1144214446. It was assigned on September 1, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. John C. Winkelmann?
Dr. John C. Winkelmann is a hematologist and oncologist in Atlanta, Georgia. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. John C. Winkelmann practice?
Dr. Winkelmann practices at 1968 Peachtree NW Rd, Atlanta, GA 30309.
What is Dr. John C. Winkelmann's office phone number?
The practice phone on file for Dr. Winkelmann is (859) 301-4000.
What is Dr. John C. Winkelmann's medical license number?
Dr. Winkelmann's Kentucky license number on file is 33840, one of the licenses on file in 4 states.
Which states has Dr. John C. Winkelmann been licensed in?
Dmand AI has state licenses on file for Dr. Winkelmann in Kentucky (1998 to 2022), Ohio (1993 to 2021), Minnesota (1982 to 1994) and Texas (1982 to 1986).
Does Dr. John C. Winkelmann accept Medicare?
Yes. CMS data shows Dr. Winkelmann billed Medicare for 112 services in 2021.
What services does Dr. John C. Winkelmann bill to Medicare?
In 2021, Dr. Winkelmann's most billed Medicare services were office visit, established patient (99214) and office visit, established patient (99213).
Where did Dr. John C. Winkelmann go to medical school?
Dr. Winkelmann graduated from University Of Minnesota Medical School in 1981.
What drugs does Dr. John C. Winkelmann prescribe most?
In 2021 Medicare Part D data, Dr. Winkelmann's most prescribed drugs by claims were Hydroxyurea, Eliquis and Imbruvica.
Show 5 more questionsShow fewer questions
Has Dr. John C. Winkelmann received payments from drug or device companies?
CMS Open Payments shows $305 in general payments to Dr. Winkelmann from 4 companies from 2020 to 2025. The largest total came from Sanofi Pasteur Inc.
How long has Dr. John C. Winkelmann been practicing?
Dr. Winkelmann graduated from medical school in 1981, 45 years ago.
Does Dr. John C. Winkelmann do research?
Dmand AI links 23 publications to Dr. Winkelmann, published from 2006 to 2014.
Who does Dr. John C. Winkelmann publish with?
Dr. Winkelmann's most frequent co-authors are David J. Dicaudo, MD (1 shared paper), Yolanda Daniela Farhey, MD (1 shared paper) and W Leroy Griffing, MD (1 shared paper).
What insurance does Dr. John C. Winkelmann accept?
Dr. Winkelmann is in network with 2 carriers, including KY State Medicaid and Molina. Medicaid plans come from the most carriers, 2. Check the plan with the practice before a visit.
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