Physician Profile
Isabel C. Guerrido Martinez, MD
Unclaimed ProfileAbout Dr. Guerrido Martinez
Isabel C. Guerrido Martinez, MD practices gastroenterology in San Juan, PR. Isabel is a 2017 graduate of University of Puerto Rico School of Medicine. Isabel is also listed as specializing in student in an organized health care education program and internal medicine. Medicare claims data shows Isabel provided 89 services to 89 patients. The services billed most often include 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 monit, removal of polyps or growths of large bowel using an endoscope with mechanical snare, and initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes. The provider's National Provider Identifier (NPI) is 1902359631.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (787) 617-9491
- Email not available
Practice Locations
W5-12 CALLE PIO BAROJA
San Juan, PR 00926
1111 Ronald Reagan Pkwy
Avon, IN 46123
Conditions Commonly Evaluated or Treated
Within Gastroenterology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Acid reflux
- Celiac disease
- Crohn's disease
- Hemorrhoids
- IBS
- Swallowing difficulties
- Ulcerative colitis
Biliary and pancreas
Colon and anorectal
Esophagus and swallowing
Functional bowel and motility
Liver
- Ascites
- Autoimmune hepatitis
- Cirrhosis
- Fatty liver disease
- Hemochromatosis
- Hepatitis B
- Hepatitis C
- Portal hypertension
Stomach and duodenum
Bowel & Colon
Digestive Symptoms
Gallbladder & Bile Ducts
Procedures & services
Most searched procedures
Lower endoscopy
Upper endoscopy
Capsule and physiology testing
Diagnostic Testing
Liver procedures
Treatments
Procedures Most Often Billed to Medicare
89 services · 89 patients · 5 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
20 | Less often than most peers in Gastroenterology |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
13 | Less often than most peers in Gastroenterology |
| 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 monit | Billing code | G0500 |
27 | As often as other peers in Gastroenterology |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
17 | Less often than most peers in Gastroenterology |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
12 | Less often than most peers in Gastroenterology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other gastroenterologists in San Juan 8
Same specialty, same city.
Trained at University of Puerto Rico School of Medicine 7
Other providers in the same specialty who trained at the same institution.
Class of 2017 at University of Puerto Rico School of Medicine 8
Providers who graduated from the same medical school in the same year.
More connections — 8 related providers in 1 group
Also performs Removal of polyps or growths of large bowel using an endoscope with mechanical snare 8
Providers in PR who bill this service to Medicare most often.
Common questions
What is Dr. Guerrido Martinez's specialty?
Dr. Guerrido Martinez is a gastroenterologist in San Juan, PR. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
Where can I find Dr. Guerrido Martinez?
Dr. Guerrido Martinez is listed at W5-12 Calle Pio Baroja, San Juan, PR 00926. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Guerrido Martinez?
The number on file is (787) 617-9491. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Guerrido Martinez?
Dr. Guerrido Martinez's National Provider Identifier is 1902359631. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Guerrido Martinez's medical education?
Dr. Guerrido Martinez attended University of Puerto Rico School of Medicine, graduating in 2017. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Guerrido Martinez have?
Dr. Guerrido Martinez has 9 years experience. Calculated from a graduation year of 2017, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Guerrido Martinez known for?
According to Medicare billing data, Dr. Guerrido Martinez performs procedures including removal of polyps or growths of large bowel using an endoscope with mechanical snare and biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Guerrido Martinez's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Guerrido Martinez. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.