Dr. Kenneth R. Ratzan, MD
- Medicare services, 2019
- 28
- Part D claims, 2021
- 17
- Publications
- 26
- Industry payments
- $8,537
- Insurance carriers
- 1
- Practice address
- 4300 Alton Rd, Miami Beach, FL 33140-2800
- Practice phone
- Call (305) 673-5490
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Ratzan'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. Kenneth R. Ratzan is an infectious disease specialist in Miami Beach, Florida
Dr. Ratzan practices in Miami Beach, Florida.
Dr. Ratzan's NPI, 1366415572, was assigned on February 8, 2006. Dr. Ratzan graduated from Harvard Medical School in 1965. Dr. Ratzan holds Florida license ME0024125.
- NPI
- 1366415572NPI Registry (opens in a new tab)
- NPI enumeration date
- February 8, 2006
- NPI status
- Active
- Practice phone
- (305) 673-5490
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1965
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Kenneth R. Ratzan's practice address is in Miami Beach, Florida
Dr. Ratzan's practice address in the NPI Registry is 4300 Alton Rd, Miami Beach, FL 33140-2800. The practice phone is (305) 673-5490.
- NPI Registry address4300 Alton Rd, Miami Beach, FL 33140-2800Phone(305) 673-5490
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Kenneth R. Ratzan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ratzan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Ratzan's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Kenneth R. Ratzan is one of 692 infectious disease specialists in Florida
Infectious disease is Dr. Ratzan's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Ratzan is board certified in infectious disease by the American Board of Internal Medicine. Dmand AI has Dr. Ratzan's licenses on file in 2 states: Florida and Maine.
Specialties and state licenses
- Infectious disease, FloridaPrimary
- Maine license
Infectious disease specialists near Dr. Ratzan
Counts of infectious disease specialists 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. Kenneth R. Ratzan billed Medicare for 28 services in 2019
CMS data shows 28 Medicare services from Dr. Ratzan across 2 procedure codes in 2019, all of them office visits. Medicare paid $4,023 for them. Every service was in an office.
Dr. Ratzan's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Office and hospital visits
- 2018: 572019: 2851%
Dr. Ratzan compared with the Florida median for infectious disease specialists, 2019
- Dr. Ratzan
- Florida median
- Medicare services
- 28vs 90597% below
- Part D claims
- 17vs 24493% below
Medians across 664 infectious disease specialists in Florida with Dmand AI profiles that report each measure.
Dr. Ratzan's most billed Medicare procedure codes, 2019
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. Ratzan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ratzan and other infectious disease specialists in Florida.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Kenneth R. Ratzan's patients have a median age of 50
Across all payers, Dmand AI patient panel data puts Dr. Ratzan's median patient age at 50, with 0% women.
Dr. Ratzan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 50
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
Dr. Kenneth R. Ratzan wrote 17 Medicare Part D claims in 2021
In 2021, Dr. Ratzan wrote 17 Medicare Part D claims. They cover 1 drug, with $61,178 in total drug cost. In 2020, CMS named 274 claims across 10 drugs.
Dr. Ratzan'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: 2742021: 1794%
Drugs named by CMS: 1 in 2021, 10 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Kenneth R. Ratzan has 26 publications on record
Dmand AI links 26 papers to Dr. Ratzan, published from 2011 to 2018. 2011 was the busiest year, with 2. The most frequent topics are Cephalothin, Sepsis and Acquired Immunodeficiency Syndrome. Dr. Ratzan has published most often in South Med J. Dr. Ratzan's most frequent co-authors are Rafael E. Campo, MD, Joseph C. Chan, MD and Alicia C. Hirzel, MD, MPH.
Dr. Ratzan's papers by year, 2011 to 2018
Topics Dr. Ratzan writes about most
- Cephalothin
- Sepsis
- Acquired Immunodeficiency Syndrome
- Anti-Bacterial Agents
- Brain
- Carbon Dioxide
- Cephalosporins
- Diagnosis, Differential
Dr. Ratzan's most frequent co-authors
- Rafael E. Campo, MD1 shared paper
- Joseph C. Chan, MD1 shared paper
- Alicia C. Hirzel, MD, MPH1 shared paper
Recent publications by Dr. Ratzan
J Infect Dis
See who Dr. Ratzan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Ratzan works with, so you can find a warm path to the right infectious disease specialists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Kenneth R. Ratzan received $8,537 in industry payments from 2016 to 2024
CMS Open Payments shows 449 general payments to Dr. Ratzan from 21 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 99% of the total. Gilead Sciences, Inc. paid the most, $1,600.
General payments to Dr. Ratzan by program year, 2016 to 2024
General payments to Dr. Ratzan by kind, 2016 to 2024
- Food and beverage$8,48399%
- Education$541%
Companies that paid Dr. Ratzan the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Kenneth R. Ratzan has 7 awards and honors on record
Dmand AI lists 7 awards for Dr. Ratzan, most recently America's Top Doctors in 2014.
Awards and honors for Dr. Ratzan
- 2014
- America's Top Doctors
- 2012
- Top Doctors:South Florida
- 2003
- SouthFloridaCEO: Top Doctors
- 2001
- Miami Metro City Guide: Top Doctors
- 2000
- Top Doctors: Florida
- Undated
- Checkbook Top Doc
Source: Dmand AI Professional Profile Data
Dr. Kenneth R. Ratzan graduated from Harvard Medical School
Dr. Ratzan graduated from Harvard Medical School in 1965.
- Medical school
- Board certified in infectious disease
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Kenneth R. Ratzan accepts plans from 1 insurance carrier
Dr. Ratzan is in network with 1 carrier, including Humana. HMO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Humana
Plan types Dr. Ratzan accepts, by number of carriers
- HMO1
- Medicare1
- PPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Kenneth R. Ratzan'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. Kenneth R. Ratzan
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. Kenneth R. Ratzan's NPI number?
Dr. Kenneth R. Ratzan's NPI number is 1366415572. It was assigned on February 8, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Kenneth R. Ratzan?
Dr. Kenneth R. Ratzan is an infectious disease specialist in Miami Beach, Florida. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).
Where does Dr. Kenneth R. Ratzan practice?
Dr. Ratzan practices at 4300 Alton Rd, Miami Beach, FL 33140-2800.
What is Dr. Kenneth R. Ratzan's office phone number?
The practice phone on file for Dr. Ratzan is (305) 673-5490.
What is Dr. Kenneth R. Ratzan's medical license number?
Dr. Ratzan holds Florida license ME0024125, one of the licenses on file in 2 states.
Which states has Dr. Kenneth R. Ratzan been licensed in?
Dmand AI has state licenses on file for Dr. Ratzan in Florida (1973 to 2027) and Maine (since 1989).
Does Dr. Kenneth R. Ratzan accept Medicare?
Yes. CMS data shows Dr. Ratzan billed Medicare for 28 services in 2019.
Is Dr. Kenneth R. Ratzan board certified?
Yes. Dr. Ratzan is board certified in infectious disease by the American Board of Internal Medicine.
What services does Dr. Kenneth R. Ratzan bill to Medicare?
In 2019, Dr. Ratzan's most billed Medicare services were office visit, established patient (99215) and office visit, new patient (99205).
Where did Dr. Kenneth R. Ratzan go to medical school?
Dr. Ratzan graduated from Harvard Medical School in 1965.
Show 6 more questionsShow fewer questions
What drugs does Dr. Kenneth R. Ratzan prescribe most?
In 2021 Medicare Part D data, Dr. Ratzan's most prescribed drugs by claims were Genvoya.
Has Dr. Kenneth R. Ratzan received payments from drug or device companies?
CMS Open Payments shows $8,537 in general payments to Dr. Ratzan from 21 companies from 2016 to 2024. The largest total came from Gilead Sciences, Inc.
How long has Dr. Kenneth R. Ratzan been practicing?
Dr. Ratzan graduated from medical school in 1965, 61 years ago.
Does Dr. Kenneth R. Ratzan do research?
Dmand AI links 26 publications to Dr. Ratzan, published from 2011 to 2018.
Who does Dr. Kenneth R. Ratzan publish with?
Dr. Ratzan's most frequent co-authors are Rafael E. Campo, MD (1 shared paper), Joseph C. Chan, MD (1 shared paper) and Alicia C. Hirzel, MD, MPH (1 shared paper).
What insurance does Dr. Kenneth R. Ratzan accept?
Dr. Ratzan is in network with 1 carrier, including Humana. HMO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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