Dr. John Mark Bugarin Gubatan, MD

  • Jacksonville, FL
  • Gastroenterologist
NPI1215340674PAC ID1658689617
Medicare services, 2024
217
Medicare patients, 2024
149
Part D claims, 2024
267
Publications
5
Clinical trials
1
Practice address
4500 San Pablo Rd, Jacksonville, FL 32224
Practice phone
Call (904) 953-2000
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Mayo Clinic Hospital

Hospital · Jacksonville, Florida

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Dr. John Mark Bugarin Gubatan is a gastroenterologist in Jacksonville, Florida

Dr. Gubatan practices at Mayo Clinic Hospital in Jacksonville, Florida, part of Mayo Clinic.

Dr. Gubatan's NPI, 1215340674, was assigned on June 3, 2014. Dr. Gubatan graduated from Harvard Medical School in 2014. Dr. Gubatan holds California license A154629.

NPI and contact details
Medicare PAC ID
1658689617
NPI enumeration date
June 3, 2014
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(904) 953-2000
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
38
Medical school graduation
2014

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

Dr. John Mark Bugarin Gubatan practices at Mayo Clinic Hospital in Jacksonville, Florida

Dr. Gubatan's primary practice is Mayo Clinic Hospital, at 4500 San Pablo Rd, Jacksonville, FL 32224 in Duval County. The practice phone is (904) 953-2000.

  • Mayo Clinic Hospital
    4500 San Pablo Rd, Jacksonville, FL 32224 · Duval CountyPhone(904) 953-2000

Source: Dmand AI Affiliation Data

Dr. John Mark Bugarin Gubatan is affiliated with 2 sites of care and 1 medical group

Dr. Gubatan's primary practice is Mayo Clinic Hospital in Jacksonville, Florida, part of Mayo Clinic. Dr. Gubatan is also affiliated with Stanford Hospital at 300 Pasteur Drive. The medical group on file is Mayo Clinic Jacksonville.

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

Dmand AI tracks the EHR system at Dr. John Mark Bugarin Gubatan's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gubatan practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Mayo Clinic HospitalAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. John Mark Bugarin Gubatan is one of 1,364 gastroenterologists in Florida

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

Specialties and state licenses

  • Gastroenterology, CaliforniaPrimaryLicense A154629 · 2018 to 2027 · taxonomy 207RG0100X
  • Massachusetts licenseLicense 260473 · 2017 to 2024

Clinical focus

Dmand AI lists chronic inflammatory bowel disease (IBD), colonoscopy, gastroenteritis, gastrointestinal bleeding, intestinal diverticulosis and upper GI endoscopy among the conditions Dr. Gubatan treats.

Gastroenterologists near Dr. Gubatan

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. John Mark Bugarin Gubatan billed Medicare for 217 services in 2024

CMS data shows 217 Medicare services from Dr. Gubatan across 8 procedure codes in 2024, for 149 Medicare patients. Medicare paid $26,270 for them.

Medicare services, 2024217
Medicare patients149
Paid by Medicare$26,270
Procedure codes8

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

  • 2023
  • 2024
Office and hospital visits
2023: 1282024: 1355%
Surgery
2023: 802024: 6618%
Other services
2023: 172024: 166%

Where Dr. Gubatan's Medicare services took place, 2024

  • In an office9343%
  • In a facility12457%

Dr. Gubatan compared with the Florida median for gastroenterologists, 2024

  • Dr. Gubatan
  • Florida median
Medicare services
217vs 58263% below
Medicare patients
149vs 32254% below
Part D claims
120vs 50276% below

Medians across 1,320 gastroenterologists in Florida with Dmand AI profiles that report each measure.

Dr. Gubatan'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. Gubatan

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

Dr. John Mark Bugarin Gubatan treated 149 Medicare patients in 2024, average age 72

CMS counts 149 Medicare patients who saw Dr. Gubatan in 2024. The largest group is 65 to 74, with 65 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 34% are also on Medicaid. Their average risk score is 2.34, 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. Gubatan's median patient age at 51, with 50% women.

Medicare patients, 2024149
Average age72
Average risk score2.34
Also on Medicaid34%

Dr. Gubatan's Medicare patients by age, 2024

Dr. Gubatan's Medicare patients by sex, 2024

  • Women8356%
  • Men6644%

Chronic conditions among Dr. Gubatan's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis42%
  4. Ischemic heart disease40%
  5. Chronic kidney disease38%
  6. Diabetes37%
  7. Mood disorders35%
  8. Depression32%

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

Dr. Gubatan's patients across all payers

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

Patient panel by age, all payers

Median age 51

Patient panel by sex, all payers

  • Women50%
  • Men50%

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

Dr. John Mark Bugarin Gubatan wrote 267 Medicare Part D claims in 2024

In 2024, Dr. Gubatan wrote 267 Medicare Part D claims for 67 patients. 72% of them were for generic drugs. CMS names the drug for 120 of them, across 6 drugs with 11 or more claims each, at $14,840 in total drug cost. In 2023, CMS named 160 claims across 9 drugs.

Part D claims, 2024267
Drugs named by CMS6
Total drug cost$14,840
Part D patients67

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

  • Generic191 claims72%
  • Brand-name76 claims28%

Dr. Gubatan'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.

Drug classes CMS tracks in Dr. Gubatan's Part D claims, 2024

  • Antibiotics8%22 of 267 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 1602024: 12025%

Drugs named by CMS: 6 in 2024, 9 in 2023.

See all prescribing by Dr. Gubatan

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. John Mark Bugarin Gubatan ranks in the 76th percentile for colonoscopy in Medicare

Dr. Gubatan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Gubatan as offering telehealth. CMS counts 84 procedures of colonoscopy by Dr. Gubatan, more than 76% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Where Dr. Gubatan ranks in Medicare procedure volume

Colonoscopy
76th percentile84 procedures
Upper gastrointestinal (GI) endoscopy for acid reflux
73rd percentile84 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. John Mark Bugarin Gubatan has 5 publications on record

Dmand AI links 5 papers to Dr. Gubatan, published from 2010 to 2024. 2024 was the busiest year, with 2. The most frequent topics are Inflammatory Bowel Diseases, Pregnancy Outcome and Premature Birth. Dr. Gubatan's most frequent co-authors are Sarah Elizabeth Streett, MD, David Brian Corry, MD and Farrah Kheradmand, MD.

Papers5
Years published2010 to 2024

Dr. Gubatan's papers by year, 2010 to 2024

Topics Dr. Gubatan writes about most

  • Inflammatory Bowel Diseases
  • Pregnancy Outcome
  • Premature Birth

Dr. Gubatan's most frequent co-authors

Recent publications by Dr. Gubatan

See all 5 publications and co-authors

See who Dr. Gubatan researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Gubatan 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. John Mark Bugarin Gubatan has worked on 1 clinical trial

Dmand AI links Dr. Gubatan to 1 clinical trial. Conditions studied include Dysbiosis and Colitis, Ulcerative.

Conditions in Dr. Gubatan's trials

  • Dysbiosis
  • Colitis, Ulcerative

Recent clinical trials with Dr. Gubatan

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. John Mark Bugarin Gubatan received $287 in industry payments from 2018 to 2023

CMS Open Payments shows 4 general payments to Dr. Gubatan from 3 drug and device companies from 2018 to 2023. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $212.

General payments to Dr. Gubatan by program year, 2018 to 2023

Companies that paid Dr. Gubatan the most, 2018 to 2023

Share is of all general payments to this clinician.

See all payments to Dr. Gubatan

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

Dr. John Mark Bugarin Gubatan has 26 awards and honors on record

Dmand AI lists 26 awards for Dr. Gubatan, most recently Doris Duke Physician Scientist Fellowship Award in 2023.

Awards and honors for Dr. Gubatan

  1. 2023
    • Doris Duke Physician Scientist Fellowship Award
  2. 2022
    • Chan Zuckerberg Biohub Physician Scientist Scholar Award
    • Clinical Research Loan Repayment Program Award
  3. 2021
    • AGA Gastroenterology Journal Editorial Fellow
    • NCSCG Symposium 1st Place Abstract Award
    • Stanford Gastroenterology Chief Fellow
See all 26 awards

Source: Dmand AI Professional Profile Data

Dr. John Mark Bugarin Gubatan graduated from Harvard Medical School

Dr. Gubatan graduated from Harvard Medical School in 2014. Dr. Gubatan is a member of ACG, AGA, American Society for Gastrointestinal Endoscopy and European Crohns and Colitis Organisation.

  1. Medical schoolHarvard Medical School
  2. Board certified in gastroenterologyAmerican Board of Internal Medicine
  3. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. John Mark Bugarin Gubatan accepts plans from 9 insurance carriers

Dr. Gubatan is in network with 9 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.

  • Aetna
  • Elevance
  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • United Healthcare
  • Blue Cross and Blue Shield of Kansas City
  • CMS Medicare
  • +1 more carriersWith a free account

Plan types Dr. Gubatan accepts, by number of carriers

  1. Medicare5
  2. PPO5
  3. HMO4
  4. POS4
  5. EPO3
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. John Mark Bugarin Gubatan'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
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network 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. John Mark Bugarin Gubatan

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. John Mark Bugarin Gubatan's NPI number?

Dr. John Mark Bugarin Gubatan's NPI number is 1215340674. It was assigned on June 3, 2014, and it is active in the NPI Registry.

What kind of doctor is Dr. John Mark Bugarin Gubatan?

Dr. John Mark Bugarin Gubatan is a gastroenterologist in Jacksonville, Florida. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. John Mark Bugarin Gubatan practice?

Dr. Gubatan practices at 4500 San Pablo Rd, Jacksonville, FL 32224. Dr. Gubatan's primary practice is Mayo Clinic Hospital in Jacksonville, Florida, part of Mayo Clinic.

What is Dr. John Mark Bugarin Gubatan's office phone number?

The practice phone on file for Dr. Gubatan is (904) 953-2000.

What is Dr. John Mark Bugarin Gubatan's medical license number?

Dr. Gubatan holds California license A154629, one of the licenses on file in 2 states.

Which states has Dr. John Mark Bugarin Gubatan been licensed in?

Dmand AI has state licenses on file for Dr. Gubatan in California (2018 to 2027) and Massachusetts (2017 to 2024).

Which hospitals is Dr. John Mark Bugarin Gubatan affiliated with?

Dr. Gubatan practices at Mayo Clinic Hospital in Jacksonville, Florida. Dr. Gubatan is also affiliated with Stanford Hospital at 300 Pasteur Drive.

What medical group is Dr. John Mark Bugarin Gubatan part of?

Dr. Gubatan is linked to Mayo Clinic Jacksonville.

Does Dr. John Mark Bugarin Gubatan accept Medicare?

Yes. CMS data shows Dr. Gubatan billed Medicare for 217 services in 2024, and Dr. Gubatan accepts Medicare assignment.

Does Dr. John Mark Bugarin Gubatan offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Gubatan as offering telehealth services.

Show 10 more questionsShow fewer questions

How many Medicare patients does Dr. John Mark Bugarin Gubatan see?

CMS counts 149 Medicare patients who saw Dr. Gubatan in 2024, with an average age of 72.

Is Dr. John Mark Bugarin Gubatan board certified?

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

What services does Dr. John Mark Bugarin Gubatan bill to Medicare?

In 2024, Dr. Gubatan's most billed Medicare services were office visit, established patient (99215), hospital inpatient care (99223) and surgery: digestive system (45380).

Where did Dr. John Mark Bugarin Gubatan go to medical school?

Dr. Gubatan graduated from Harvard Medical School in 2014.

What drugs does Dr. John Mark Bugarin Gubatan prescribe most?

In 2024 Medicare Part D data, Dr. Gubatan's most prescribed drugs by claims were Colestipol HCl, Omeprazole and Peg 3350-Electrolyte.

Has Dr. John Mark Bugarin Gubatan received payments from drug or device companies?

CMS Open Payments shows $287 in general payments to Dr. Gubatan from 3 companies from 2018 to 2023. The largest total came from Abbvie Inc.

How long has Dr. John Mark Bugarin Gubatan been practicing?

Dr. Gubatan graduated from medical school in 2014, 12 years ago.

Does Dr. John Mark Bugarin Gubatan do research?

Dmand AI links 5 publications to Dr. Gubatan, published from 2010 to 2024. Dr. Gubatan has worked on 1 clinical trial.

Who does Dr. John Mark Bugarin Gubatan publish with?

Dr. Gubatan's most frequent co-authors are Sarah Elizabeth Streett, MD (2 shared papers), David Brian Corry, MD (1 shared paper) and Farrah Kheradmand, MD (1 shared paper).

What insurance does Dr. John Mark Bugarin Gubatan accept?

Dr. Gubatan is in network with 9 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.

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