Dr. Karen Marrero, MD

  • Orlando, FL
  • Internist
NPI1427383330
Part D claims, 2024
55
Publications
7
Affiliated sites
2
Medical groups
2
Insurance carriers
4
Practice address
601 E Rollins St, Orlando, FL 32803
Practice phone
Call (407) 303-5600
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

AdventHealth East Orlando

Orlando, Florida

See all 5 affiliations

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Dr. Karen Marrero is an internist in Orlando, Florida

Dr. Marrero practices at AdventHealth East Orlando in Orlando, Florida.

Dr. Marrero's NPI, 1427383330, was assigned on October 9, 2009. Dr. Marrero graduated from Ponce Health Sciences University School of Medicine in 2005. Dr. Marrero's New York license number on file is 254995.

NPI and contact details
NPI enumeration date
October 9, 2009
NPI status
Active
Practice phone
(407) 303-5600
Professional email
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Personal email
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Mobile number
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Sex
Female
Medical school graduation
2005

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data

Dr. Karen Marrero practices at AdventHealth East Orlando in Orlando, Florida

Dr. Marrero's primary practice is AdventHealth East Orlando, at 601 E Rollins St, Orlando, FL 32803 in Orange County. The practice phone is (407) 303-5600.

  • AdventHealth East Orlando
    601 E Rollins St, Orlando, FL 32803 · Orange CountyPhone(407) 303-5600

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Karen Marrero is affiliated with 3 sites of care and 2 medical groups

Dr. Marrero's primary practice is AdventHealth East Orlando in Orlando, Florida. The medical group on file is Gutierrez Medical Center. Dmand AI also links Dr. Marrero to 2 more group practices and clinics and 1 medical group, each named with a free account.

See all 5 affiliations for Dr. Marrero

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Karen Marrero's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marrero practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
AdventHealth East OrlandoAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Karen Marrero is one of 9,009 internists in Florida

Internal medicine is Dr. Marrero's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Marrero's licenses on file in 2 states: New York and Florida.

Specialties and state licenses

  • Internal medicine, New YorkPrimaryLicense 254995 · 2009 to 2011 · taxonomy 207R00000X
  • Florida license2011 to 2026

Internists near Dr. Marrero

Counts of internists 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. Karen Marrero's patients have a median age of 45

Across all payers, Dmand AI patient panel data puts Dr. Marrero's median patient age at 45, with 59% women.

Dr. Marrero's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 45

Patient panel by sex, all payers

  • Women59%
  • Men41%

Source: Dmand AI Patient Panel Data

Dr. Karen Marrero wrote 55 Medicare Part D claims in 2024

In 2024, Dr. Marrero wrote 55 Medicare Part D claims. 91% of them were for generic drugs.

Part D claims, 202455

Dr. Marrero's Part D claims by kind of drug, 2024

  • Generic50 claims91%
  • Brand-name and other5 claims9%

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

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Dr. Karen Marrero has 7 publications on record

Dmand AI links 7 papers to Dr. Marrero in 2008. The most frequent topics are Vibrio cholerae, Cholera Vaccines and Amino Acid Sequence. Dr. Marrero has published most often in Infect Immun. Dr. Marrero's most frequent co-author is Rana A. Javed, MD.

Papers7

Topics Dr. Marrero writes about most

  • Vibrio cholerae
  • Cholera Vaccines
  • Amino Acid Sequence
  • Antibodies, Bacterial
  • Cellulase
  • Cholera
  • Mice, Inbred BALB C
  • Molecular Sequence Data

Dr. Marrero's most frequent co-authors

Recent publications by Dr. Marrero

See all 7 publications and co-authors

See who Dr. Marrero researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Marrero works with, so you can find a warm path to the right internists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Karen Marrero graduated from Ponce Health Sciences University School of Medicine

Dr. Marrero graduated from Ponce Health Sciences University School of Medicine in 2005.

  1. Medical schoolPonce Health Sciences University School of Medicine

Source: Dmand AI Professional Profile Data

Dr. Karen Marrero accepts plans from 4 insurance carriers

Dr. Marrero is in network with 4 carriers, including Blue Cross Blue Shield of Massachusetts, HCSC and United Healthcare. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.

  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • United Healthcare
  • Alliant Health Plans

Plan types Dr. Marrero accepts, by number of carriers

  1. HMO2
  2. Medicare2
  3. PPO2
  4. POS1

Source: Dmand AI Insurance Network Data

Sources for Dr. Karen Marrero's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Karen Marrero

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. Karen Marrero's NPI number?

Dr. Karen Marrero's NPI number is 1427383330. It was assigned on October 9, 2009, and it is active in the NPI Registry.

What kind of doctor is Dr. Karen Marrero?

Dr. Karen Marrero is an internist in Orlando, Florida. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Karen Marrero practice?

Dr. Marrero practices at 601 E Rollins St, Orlando, FL 32803. Dr. Marrero's primary practice is AdventHealth East Orlando in Orlando, Florida. Dmand AI also links Dr. Marrero to 2 group practices and clinics and 1 medical group.

What is Dr. Karen Marrero's office phone number?

The practice phone on file for Dr. Marrero is (407) 303-5600.

What is Dr. Karen Marrero's medical license number?

Dr. Marrero's New York license number on file is 254995, one of the licenses on file in 2 states.

Which states has Dr. Karen Marrero been licensed in?

Dmand AI has state licenses on file for Dr. Marrero in New York (2009 to 2011) and Florida (2011 to 2026).

What medical group is Dr. Karen Marrero part of?

Dr. Marrero is linked to Gutierrez Medical Center. Dmand AI links Dr. Marrero to 1 more medical group.

Where did Dr. Karen Marrero go to medical school?

Dr. Marrero graduated from Ponce Health Sciences University School of Medicine in 2005.

How long has Dr. Karen Marrero been practicing?

Dr. Marrero graduated from medical school in 2005, 21 years ago.

Does Dr. Karen Marrero do research?

Dmand AI links 7 publications to Dr. Marrero.

Who does Dr. Karen Marrero publish with?

Dr. Marrero's most frequent co-authors are Rana A. Javed, MD (1 shared paper).

What insurance does Dr. Karen Marrero accept?

Dr. Marrero is in network with 4 carriers, including Blue Cross Blue Shield of Massachusetts, HCSC and United Healthcare. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.

Selling to internal medicine practices?

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