Maria Marrero, NP
Family Nurse Practitioner · Dyer, IN
Maria Marrero, NP is a family nurse practitioner with a practice address in Dyer, Indiana, and NPI 1396122784, issued on May 5, 2015. Check the license (Indiana 71005463A, as entered in NPPES) with the Indiana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Maria Marrero
- Credential
- NP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- 71005463A IN
28162112 IN
Self-reported in NPPES; status is on the state search - Practice location
- 1001 Calumet Ave, Dyer, IN 46311
- Phone
- (219) 924-8178
- Enumerated
- May 5, 2015
- Record last updated
- Mar 22, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20150625000432); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 1001 Calumet Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Erica Deenihan, FNPFamily Nurse Practitioner1861033060
- Mohamad Kassar, M.D.Hematology & Oncology Physician1063691830
- Zachary Krueger, PAPhysician Assistant1992410898
- Melissa KrzusFamily Nurse Practitioner1205243524
- Amanda Meyers, NP-CFamily Nurse Practitioner1235698408
Verify Maria Marrero in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Indiana board licenses this profession
Search for license 71005463ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
17% more Medicare Part D claims than the average family nurse practitioner in 2024
1,523 Medicare Part D claims for 286 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 145 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen73 claims
- Anastrozole66 claims
- Potassium Chloride59 claims
- Prednisone48 claims
- Alprazolam47 claims
- Warfarin Sodium43 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $4,869.51
119 payments; by number, the most common kind was food and beverage; the largest payer was Daiichi Sankyo Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Northwest Cancer Centers PCDyer, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
35 family nurse practitioner records list a practice address in Dyer
They are 35 of the 457 NPPES records with a practice address in Dyer, and 5,867 family nurse practitioner records in Indiana.
All 35 in Dyer → All 5,867 in Indiana → Every provider in Dyer →
Other family nurse practitioner records in Indiana
- Jennifer AaronIndianapolis, IN1093567554
- Juliana Abara, F.N.P.Terre Haute, IN1619134244
- Melinda Abbring, FNP-BCEast Chicago, IN1790208197
- Abigail Abbs, NPSouth Bend, IN1770262156
- Sheila Abebe, NPNoblesville, IN1306899224
- Audra AbelGeorgetown, IN1003350596
- Jenile Abell, FNP-CAnderson, IN1073755658
- Morgan Abney, MSN, APRN, FNP-CShelbyville, IN1306532783
- Maggie AbsalomShelbyville, IN1790133080
- Brookelyn Abubakr, NPCarmel, IN1871177873
Common questions
What is Maria Marrero, NP's NPI number?
Maria Marrero, NP's National Provider Identifier (NPI) is 1396122784, issued on May 5, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Maria Marrero, NP located?
The NPPES record lists a practice address at 1001 Calumet Ave, Dyer, IN, 46311. Phone: (219) 924-8178. Providers update this record themselves, so call before visiting.
How can I verify Maria Marrero, NP's license?
NPPES lists Indiana license number 71005463A, as entered by the provider. Search the Indiana board that licenses this profession; the NPPES record confirms identity only.
How much does Maria Marrero, NP prescribe under Medicare Part D?
In 2024, Maria Marrero, NP had 1,523 Medicare Part D claims for 286 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.