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ISABEL C GUERRIDO MARTINEZ MD
NPI 1902359631
Internal Medicine in San Juan, PR

Active since July 29, 2016PECOS EnrolledAccepts Medicare Assignment
W5-12 CALLE PIO BAROJA, SAN JUAN, PR 00926(787) 617-9491 Get Directions Write a Review

NPPES record last updated: June 4, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Isabel C Guerrido Martinez Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ISABEL C GUERRIDO MARTINEZ MD (NPI 1902359631) is an individual internal medicine provider in San Juan, Puerto Rico, licensed in Indiana (01093397A) and active in the NPI registry since July 2016. She is enrolled in Medicare PECOS, is affiliated with Indiana University Health, and maintains a secondary practice location in Avon.

NPPES Registry Identity

NPI1902359631
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameISABEL C GUERRIDO MARTINEZCredential: MD
Location AddressW5-12 CALLE PIO BAROJASan Juan, PR 00926-6802
Mailing AddressW5-12 Calle Pio BarojaSan Juan, PR 00926-6802 · (787) 617-9491
Phone(787) 617-9491
Sole ProprietorNo
Medical School CMSUniversity Of Puerto Rico School Of MedicineGraduated 2017
Enumeration DateJuly 29, 2016
Last NPPES UpdateJune 4, 2024
NPPES CertifiedJune 4, 2024
✔ NPI 1902359631 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in IN · 01093397A
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedInternal Medicine · GastroenterologyTaxonomy 207RG0100X · License 01093397A (IN)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

Secondary Practice Location 1

Location 11111 Ronald Reagan PkwyAvon, IN 46123-7085 · Phone (317) 962-6300 · Fax (317) 962-2346

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Isabel C Guerrido Martinez Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4486990710
PECOS Enrollment IDI20240614001859
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Isabel Guerrido Martinez reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Indiana University Health Care Associates, Inc.
Dietitian, Registered
1800 N CAPITOL AVE, B445
Indianapolis, IN 46202
  • Reassigned Medicare billing, Indiana enrollment
  • 1,781 clinicians in this Medicare group
NPI 1679949002 (317) 944-3500
Iu Health Medical Group, LLC
General Practice
1701 N SENATE BLVD
Indianapolis, IN 46202
  • Reassigned Medicare billing, Indiana enrollment
  • 5,212 clinicians in this Medicare group
NPI 1326893777 (317) 962-2000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

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 monito G0500
Moderate sedation is a method where a physician uses medication to help you relax during a gastrointestinal endoscopy. An independent trained observer will be present to monitor your vital signs and ensure your safety throughout the procedure. It's a common and safe practice.
27 services27 patients
Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385
This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.
20 services20 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
17 services17 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
13 services13 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
12 services12 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Indiana University Health

Acute Care Hospitals · Indianapolis, IN
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number150056
Location1701 N Senate BlvdIndianapolis, IN 46202 · Marion County
Emergency services Birthing friendly

Iu Health West Hospital

Acute Care Hospitals · Avon, IN
4/5 CMS rating
OwnershipProprietary
CMS Certification Number150158
Location1111 N Ronald Reagan PkwyAvon, IN 46123 · Hendricks County
Emergency services Birthing friendly

Indiana University Health Tipton Hospital Inc

Critical Access Hospitals · Tipton, IN
OwnershipVoluntary non-profit - Other
CMS Certification Number151311
Location1000 S Main StTipton, IN 46072 · Tipton County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 00926 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$130.65 typical visit price
range $56.86 – $172.44
Typical copayment $32.66 (range $14.21 – $43.11)
Most-billed visit code 99204
Established Patient
$100.24 typical visit price
range $18.24 – $140.44
Typical copayment $25.06 (range $4.56 – $35.11)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Isabel Guerrido Martinez's NPI number?

The NPI number for Isabel Guerrido Martinez is 1902359631. It was assigned to this individual provider in the NPPES registry on July 29, 2016.

Where is Isabel Guerrido Martinez located?

Isabel Guerrido Martinez practices at W5-12 Calle Pio Baroja, San Juan, PR 00926. The listed phone number is (787) 617-9491.

What is Isabel Guerrido Martinez's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Isabel Guerrido Martinez enrolled in Medicare?

Yes. Isabel Guerrido Martinez is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Isabel Guerrido Martinez's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Isabel Guerrido Martinez reassigns Medicare benefits to 2 organizations: Indiana University Health Care Associates, Inc. (Indianapolis, IN) and Iu Health Medical Group, LLC (Indianapolis, IN). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Isabel Guerrido Martinez's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Isabel Guerrido Martinez accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and CareSource and 2 other insurers list Isabel Guerrido Martinez as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Isabel Guerrido Martinez affiliated with any hospitals?

According to CMS data, Isabel Guerrido Martinez is affiliated with Indiana University Health, Iu Health West Hospital and Indiana University Health Tipton Hospital Inc.

When was this NPI record last updated?

The NPPES record for Isabel Guerrido Martinez was last updated on June 4, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.