Dr. Melissa A. Martinez Mateo, MD

  • Palos Heights, IL
  • Gastroenterologist
NPI1003124280PAC ID1254570799
Medicare services, 2024
523
Medicare patients, 2024
293
Part D claims, 2024
190
Publications
1
Hospital affiliations
2
Practice address
12251 South 80th Avenue, Palos Heights, IL 60463
Practice phone
Call (708) 923-4000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Northwestern Medicine Palos Hospital

Hospital · Palos Heights, Illinois

See all 7 affiliations

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Dr. Melissa A. Martinez Mateo is a gastroenterologist in Palos Heights, Illinois

Dr. Martinez Mateo practices at Northwestern Medicine Palos Hospital in Palos Heights, Illinois, part of Northwestern Memorial HealthCare.

Dr. Martinez Mateo's NPI, 1003124280, was assigned on September 21, 2010. Dr. Martinez Mateo holds Indiana license 01072250A.

NPI and contact details
Medicare PAC ID
1254570799
NPI enumeration date
September 21, 2010
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(708) 923-4000
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Female
Estimated age
46
Medical school graduation
2006

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Melissa A. Martinez Mateo practices at Northwestern Medicine Palos Hospital in Palos Heights, Illinois

Dr. Martinez Mateo's primary practice is Northwestern Medicine Palos Hospital, at 12251 South 80th Avenue, Palos Heights, IL 60463 in Cook County. The practice phone is (708) 923-4000.

Source: Dmand AI Affiliation Data

Dr. Melissa A. Martinez Mateo is affiliated with 3 sites of care and 4 medical groups

Dr. Martinez Mateo's primary practice is Northwestern Medicine Palos Hospital in Palos Heights, Illinois, part of Northwestern Memorial HealthCare. Dr. Martinez Mateo is also affiliated with Carle Foundation Hospital. The medical group on file is Northwestern Medical Faculty Foundation. Dmand AI also links Dr. Martinez Mateo to 3 more medical groups and 1 rural health clinic, each named with a free account.

See all 7 affiliations for Dr. Martinez Mateo

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Melissa A. Martinez Mateo's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Martinez Mateo practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Northwestern Medicine Palos HospitalAvailable with a free account
+2 more sites and 3 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Melissa A. Martinez Mateo is one of 771 gastroenterologists in Illinois

Gastroenterology is Dr. Martinez Mateo's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Martinez Mateo is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Martinez Mateo's licenses on file in 2 states: Indiana and Illinois.

Specialties and state licenses

  • Gastroenterology, IndianaPrimaryLicense 11015804A · taxonomy 207RG0100X
  • Internal medicine, IllinoisLicense 125056433 · taxonomy 207R00000X

Gastroenterologists near Dr. Martinez Mateo

Counts of gastroenterologists 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. Melissa A. Martinez Mateo billed Medicare for 523 services in 2024

CMS data shows 523 Medicare services from Dr. Martinez Mateo across 11 procedure codes in 2024, for 293 Medicare patients. Medicare paid $46,425 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024523
Medicare patients293
Paid by Medicare$46,425
Procedure codes11

Dr. Martinez Mateo's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 3742024: 24734%
Surgery
2023: 3152024: 24323%
Other services
2023: 252024: 3332%

Dr. Martinez Mateo compared with the Illinois median for gastroenterologists, 2024

  • Dr. Martinez Mateo
  • Illinois median
Medicare services
523vs 4985% above
Medicare patients
293vs 307Close to median
Part D claims
144vs 37061% below

Medians across 757 gastroenterologists in Illinois with Dmand AI profiles that report each measure.

Dr. Martinez Mateo's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Martinez Mateo

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Melissa A. Martinez Mateo treated 293 Medicare patients in 2024, average age 72

CMS counts 293 Medicare patients who saw Dr. Martinez Mateo in 2024. The largest group is 65 to 74, with 108 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 36% are also on Medicaid. Their average risk score is 2.25, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Martinez Mateo's median patient age at 72, with 65% women.

Medicare patients, 2024293
Average age72
Average risk score2.25
Also on Medicaid36%

Dr. Martinez Mateo's Medicare patients by age, 2024

Dr. Martinez Mateo's Medicare patients by sex, 2024

  • Women16857%
  • Men12543%

Chronic conditions among Dr. Martinez Mateo's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis59%
  4. Ischemic heart disease53%
  5. Anxiety47%
  6. Heart failure47%
  7. Chronic kidney disease42%
  8. Diabetes39%

Share of Medicare patients with each condition. A patient can have several.

Dr. Martinez Mateo's patients across all payers

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

Patient panel by age, all payers

Median age 72

Patient panel by sex, all payers

  • Women65%
  • Men35%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Melissa A. Martinez Mateo wrote 190 Medicare Part D claims in 2024

In 2024, Dr. Martinez Mateo wrote 190 Medicare Part D claims for 84 patients. 87% of them were for generic drugs. CMS names the drug for 144 of them, across 4 drugs with 11 or more claims each, at $4,309 in total drug cost. In 2023, CMS named 108 claims across 4 drugs.

Part D claims, 2024190
Drugs named by CMS4
Total drug cost$4,309
Part D patients84

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

  • Generic165 claims87%
  • Brand-name25 claims13%

Dr. Martinez Mateo's most prescribed drugs by claims, 2024

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, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 1082024: 14433%

Drugs named by CMS: 4 in 2024, 4 in 2023.

See all prescribing by Dr. Martinez Mateo

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Melissa A. Martinez Mateo ranks in the 84th percentile for colonoscopy in Medicare

Dr. Martinez Mateo accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 121 procedures of colonoscopy by Dr. Martinez Mateo, more than 84% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Where Dr. Martinez Mateo ranks in Medicare procedure volume

Upper gastrointestinal (GI) endoscopy for acid reflux
83rd percentile136 procedures
Colonoscopy
84th percentile121 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. Melissa A. Martinez Mateo has 1 publication on record

Dmand AI links 1 paper to Dr. Martinez Mateo in 2018. Dr. Martinez Mateo's most frequent co-authors are Patrick R. Barrett, MD and Nabil F. Fayad, MD.

Papers1

Dr. Martinez Mateo's most frequent co-authors

Recent publications by Dr. Martinez Mateo

See all 1 publications and co-authors

See who Dr. Martinez Mateo researches with

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

How network discovery works

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

Dr. Melissa A. Martinez Mateo received $5,927 in industry payments from 2016 to 2025

CMS Open Payments shows 126 general payments to Dr. Martinez Mateo from 20 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 62% of the total. Boston Scientific Corporation paid the most, $3,115.

General payments to Dr. Martinez Mateo by program year, 2016 to 2025

General payments to Dr. Martinez Mateo by kind, 2016 to 2025

$5.9Kin total
  • Food and beverage$3,65662%
  • Travel and lodging$2,24838%
  • Speaker and faculty fees$230%

Companies that paid Dr. Martinez Mateo the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Martinez Mateo

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Melissa A. Martinez Mateo is board certified in gastroenterology

  1. Board certified in gastroenterologyAmerican Board of Internal Medicine
  2. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Melissa A. Martinez Mateo'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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile 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. Melissa A. Martinez Mateo

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. Melissa A. Martinez Mateo's NPI number?

Dr. Melissa A. Martinez Mateo's NPI number is 1003124280. It was assigned on September 21, 2010, and it is active in the NPI Registry.

What kind of doctor is Dr. Melissa A. Martinez Mateo?

Dr. Melissa A. Martinez Mateo is a gastroenterologist in Palos Heights, Illinois. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Melissa A. Martinez Mateo practice?

Dr. Martinez Mateo practices at 12251 South 80th Avenue, Palos Heights, IL 60463. Dr. Martinez Mateo's primary practice is Northwestern Medicine Palos Hospital in Palos Heights, Illinois, part of Northwestern Memorial HealthCare. Dmand AI also links Dr. Martinez Mateo to 3 medical groups and 1 rural health clinic.

What is Dr. Melissa A. Martinez Mateo's office phone number?

The practice phone on file for Dr. Martinez Mateo is (708) 923-4000.

What is Dr. Melissa A. Martinez Mateo's medical license number?

Dr. Martinez Mateo holds Indiana license 01072250A, one of the licenses on file in 2 states.

Which states has Dr. Melissa A. Martinez Mateo been licensed in?

Dmand AI has state licenses on file for Dr. Martinez Mateo in Indiana and Illinois.

Which hospitals is Dr. Melissa A. Martinez Mateo affiliated with?

Dr. Martinez Mateo practices at Northwestern Medicine Palos Hospital in Palos Heights, Illinois. Dr. Martinez Mateo is also affiliated with Carle Foundation Hospital.

What medical group is Dr. Melissa A. Martinez Mateo part of?

Dr. Martinez Mateo is linked to Northwestern Medical Faculty Foundation. Dmand AI links Dr. Martinez Mateo to 3 more medical groups.

Does Dr. Melissa A. Martinez Mateo accept Medicare?

Yes. CMS data shows Dr. Martinez Mateo billed Medicare for 523 services in 2024, and Dr. Martinez Mateo accepts Medicare assignment.

How many Medicare patients does Dr. Melissa A. Martinez Mateo see?

CMS counts 293 Medicare patients who saw Dr. Martinez Mateo in 2024, with an average age of 72.

Show 7 more questionsShow fewer questions

Is Dr. Melissa A. Martinez Mateo board certified?

Yes. Dr. Martinez Mateo is board certified in gastroenterology by the American Board of Internal Medicine.

What services does Dr. Melissa A. Martinez Mateo bill to Medicare?

In 2024, Dr. Martinez Mateo's most billed Medicare services were hospital inpatient care (99222), surgery: digestive system (43239) and surgery: digestive system (45380).

What drugs does Dr. Melissa A. Martinez Mateo prescribe most?

In 2024 Medicare Part D data, Dr. Martinez Mateo's most prescribed drugs by claims were Pantoprazole Sodium, Sucralfate and Omeprazole.

Has Dr. Melissa A. Martinez Mateo received payments from drug or device companies?

CMS Open Payments shows $5,927 in general payments to Dr. Martinez Mateo from 20 companies from 2016 to 2025. The largest total came from Boston Scientific Corporation.

How long has Dr. Melissa A. Martinez Mateo been practicing?

Dr. Martinez Mateo graduated from medical school in 2006, 20 years ago.

Does Dr. Melissa A. Martinez Mateo do research?

Dmand AI links 1 publication to Dr. Martinez Mateo.

Who does Dr. Melissa A. Martinez Mateo publish with?

Dr. Martinez Mateo's most frequent co-authors are Patrick R. Barrett, MD (1 shared paper) and Nabil F. Fayad, MD (1 shared paper).

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