Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. John Mark Bugarin Gubatan, MD

Individual provider Internal Medicine Physician · NPI 1215340674

Dr. John Mark Bugarin Gubatan, MD practises Gastroenterology in Jacksonville, Florida. Graduated from Harvard Medical School in 2014, 12 years ago. Practices with Mayo Clinic Jacksonville, a 1,581-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in California and Florida.

Years since qualifying
12
Trained at
Harvard Medical School
Licensed in
CA, FL
In the registry since
2014
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

4500 San Pablo Rd S
Jacksonville, FL 32224-1865
Phone: (904) 953-2000
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 300 Pasteur Dr, Stanford, CA 94305-2200 — (650) 723-4000
  • 330 Brookline Ave, Boston, MA 02215-5400 — (617) 667-7000

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence ME174469 (FL)
Internal Medicine Physician Taxonomy 207R00000X · Licence A154629 (CA)
Gastroenterology Physician Taxonomy 207RG0100X · Licence A154629 (CA)

Record details

NPI number1215340674
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 3, 2014
Last updated in NPPESAugust 18, 2025
Certification dateAugust 18, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Medical schoolHARVARD MEDICAL SCHOOL
Graduated 2014 (12 years in practice)
Group practice Mayo Clinic Jacksonville — 1581 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Upper gastrointestinal (GI) endoscopy for acid reflux 92 times · 75th percentile
Colonoscopy 79 times · 74th percentile

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients149
Services billed 298 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Mayo Clinic Jacksonville

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1581 clinicians in the practice; 12 are shown here.

Other providers in Jacksonville