What is Melissa Martinez Mateo's NPI number?

Melissa Martinez Mateo's National Provider Identifier (NPI) is 1003124280, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Melissa Martinez Mateo's specialty?

Melissa Martinez Mateo is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).

Where is Melissa Martinez Mateo located?

Melissa Martinez Mateo's practice location on file with NPPES is 2601 W Main St, Carbondale, IL 62901-1031.

What is Melissa Martinez Mateo's phone number?

The practice phone number listed in the NPPES registry for Melissa Martinez Mateo is (618) 549-5361.

Does Melissa Martinez Mateo accept Medicare?

Melissa Martinez Mateo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Melissa Martinez Mateo's NPI active?

Yes — Melissa Martinez Mateo's NPI (1003124280) is active in the NPPES registry as of the last update on 2025-12-04.

IndividualActiveAccepts Medicare

Melissa Martinez Mateo, M.D.

NPI 1003124280 · Gastroenterology Physician · Carbondale, IL

Melissa Martinez Mateo, M.D. is a Gastroenterology Physician provider in Carbondale, IL (NPI 1003124280).

Provider details

NPI number: 1003124280
Entity type: Individual
Primary specialty: Gastroenterology PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Female
Sole proprietor: No
License: 01072250A (IN)

Practice location

2601 W Main St

Carbondale, IL 62901-1031

Phone: (618) 549-5361

Fax: (618) 351-4878

Approximate (ZIP-level) locationGet directions

More IL providers

Mailing address

Po Box 3988

Carbondale, IL 62902-3988

Specialties & taxonomies

Gastroenterology PhysicianPrimary207RG0100XLicense 01072250A (IN)
Allopathic & Osteopathic Physicians
Internal Medicine Physician207R00000XLicense 125056433 (IL)
Allopathic & Osteopathic Physicians
Gastroenterology Physician207RG0100XLicense 036139158 (IL)
Allopathic & Osteopathic Physicians
Internal Medicine Physician207R00000XLicense 11015804A (IN)
Allopathic & Osteopathic Physicians

Additional practice locations (2)

2601 W Main St
Carbondale, IL 62901-1031
Phone: (618) 351-7300
Fax: (618) 457-7890
15300 West Ave Ste 210
Orland Park, IL 60462-4686
Phone: (708) 226-2870
Fax: (708) 226-2390

Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Detailed profile(80/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure25% of score
16 yrs in NPPES registry
Profile completeness25% of score
100% of core fields populated
Practice footprint15% of score
3 documented practice locations
Medicare service volume (vs. specialty peers)25% of score
523 Medicare services, 2024 (ranked within specialty)
Open Payments transparency10% of score
Has Open Payments disclosures (2024)

Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222	192	$126
Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239	84	$73
Biopsy of Large Bowel Using a Flexible Endoscope45380	36	$106
Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232	34	$76
Moderate Sedation Services Provided By the Same Physician Or Other Qualified Health Care Professional Performing a Gastrointestinal Endoscopic Service That Sedation Supports, Requiring the Presence of an Independent Trained Observer to Assist in the MonitoG0500	33	$6

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Pantoprazole Sodium	84	39
Sucralfate	31	25
Omeprazole	17	—
Famotidine	12	—

Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do not include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$608 across 5 records (Open Payments 2024)

Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.

Enumerated: 2010-09-21
Last updated: 2025-12-04
Certified: 2025-12-04

Frequently asked questions

What is Melissa Martinez Mateo's NPI number?: Melissa Martinez Mateo's National Provider Identifier (NPI) is 1003124280, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Melissa Martinez Mateo's specialty?: Melissa Martinez Mateo is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
Where is Melissa Martinez Mateo located?: Melissa Martinez Mateo's practice location on file with NPPES is 2601 W Main St, Carbondale, IL 62901-1031.
What is Melissa Martinez Mateo's phone number?: The practice phone number listed in the NPPES registry for Melissa Martinez Mateo is (618) 549-5361.
Does Melissa Martinez Mateo accept Medicare?: Melissa Martinez Mateo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Melissa Martinez Mateo's NPI active?: Yes — Melissa Martinez Mateo's NPI (1003124280) is active in the NPPES registry as of the last update on 2025-12-04.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222	192	$126
Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239	84	$73
Biopsy of Large Bowel Using a Flexible Endoscope45380	36	$106
Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232	34	$76
Moderate Sedation Services Provided By the Same Physician Or Other Qualified Health Care Professional Performing a Gastrointestinal Endoscopic Service That Sedation Supports, Requiring the Presence of an Independent Trained Observer to Assist in the MonitoG0500	33	$6

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Pantoprazole Sodium	84	39
Sucralfate	31	25
Omeprazole	17	—
Famotidine	12	—

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$608 across 5 records (Open Payments 2024)

Provider details

Practice location

Mailing address

Specialties & taxonomies

Additional practice locations (2)

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments

Registry dates

Frequently asked questions

Specialties & taxonomies

Additional practice locations (2)

Frequently asked questions

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments