Dr. Harold E. Paredes, MD

  • Rialto, CA
  • Gastroenterologist
NPI1447592969PAC ID5890027312
Medicare services, 2024
745
Medicare patients, 2024
398
Part D claims, 2024
359
Hospital affiliations
4
Industry payments
$54,375
Practice address
2006 North Riverside Avenue Suite A, Rialto, CA 92377
Practice phone
Call (909) 644-4033
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

ACE Endoscopy and Surgery Center - Rialto

Surgery Center - Medicare-Certified · Rialto, California

See all 7 affiliations

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Dr. Harold E. Paredes is a gastroenterologist in Rialto, California

Dr. Paredes practices at ACE Endoscopy and Surgery Center - Rialto in Rialto, California.

Dr. Paredes' NPI, 1447592969, was assigned on March 22, 2013. Dr. Paredes graduated from Icahn School of Medicine at Mount Sinai in 2013. Dr. Paredes holds California license A162122.

NPI and contact details
Medicare PAC ID
5890027312
NPI enumeration date
March 22, 2013
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(909) 644-4033
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
39
Medical school graduation
2013

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

Dr. Harold E. Paredes practices at ACE Endoscopy and Surgery Center - Rialto in Rialto, California

Dr. Paredes' primary practice is ACE Endoscopy and Surgery Center - Rialto, at 2006 North Riverside Avenue Suite A, Rialto, CA 92377. The practice phone is (909) 644-4033.

  • ACE Endoscopy and Surgery Center - Rialto
    2006 North Riverside Avenue Suite A, Rialto, CA 92377Phone(909) 644-4033

Source: Dmand AI Affiliation Data

Dr. Harold E. Paredes is affiliated with 6 sites of care and 1 medical group

Dr. Paredes' primary practice is ACE Endoscopy and Surgery Center - Rialto in Rialto, California. Dr. Paredes is also affiliated with Arrowhead Regional Medical Center. The medical group on file is San Bernardino Gastroenterology Associates. Dmand AI also links Dr. Paredes to 3 more hospitals and 1 group practice or clinic, each named with a free account.

See all 7 affiliations for Dr. Paredes

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

Dmand AI tracks the EHR system at Dr. Harold E. Paredes' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Paredes practices, 6 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
ACE Endoscopy and Surgery Center - RialtoAvailable with a free account
+5 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Harold E. Paredes is one of 1,977 gastroenterologists in California

Gastroenterology is Dr. Paredes' primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Paredes is licensed in California.

Specialties and state licenses

  • Gastroenterology, CaliforniaPrimaryLicense A162122 · taxonomy 207RG0100X

Gastroenterologists near Dr. Paredes

Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.

1,977gastroenterologists in California
4gastroenterologists in Rialto

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Harold E. Paredes billed Medicare for 745 services in 2024

CMS data shows 745 Medicare services from Dr. Paredes across 11 procedure codes in 2024, for 398 Medicare patients. Medicare paid $73,129 for them.

Medicare services, 2024745
Medicare patients398
Paid by Medicare$73,129
Procedure codes11

Dr. Paredes' Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 4222024: 55231%
Surgery
2023: 952024: 10612%
Tests and treatments
2023: 832024: 875%
Lab and pathology
2023: 702024: 0100%

Where Dr. Paredes' Medicare services took place, 2024

  • In an office10614%
  • In a facility63986%

Dr. Paredes compared with the California median for gastroenterologists, 2024

  • Dr. Paredes
  • California median
Medicare services
745vs 58627% above
Medicare patients
398vs 30232% above
Part D claims
301vs 38021% below

Medians across 1,875 gastroenterologists in California with Dmand AI profiles that report each measure.

Dr. Paredes' 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. Paredes

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

Dr. Harold E. Paredes treated 398 Medicare patients in 2024, average age 70

CMS counts 398 Medicare patients who saw Dr. Paredes in 2024. The largest group is 65 to 74, with 198 patients. 75% of them have high blood pressure, and 68% have high cholesterol. 79% are also on Medicaid. Their average risk score is 2.68, 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. Paredes' median patient age at 59, with 53% women.

Medicare patients, 2024398
Average age70
Average risk score2.68
Also on Medicaid79%

Dr. Paredes' Medicare patients by age, 2024

Dr. Paredes' Medicare patients by sex, 2024

  • Women20050%
  • Men19850%

Chronic conditions among Dr. Paredes' Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol68%
  3. Diabetes55%
  4. Chronic kidney disease45%
  5. Arthritis41%
  6. Heart failure39%
  7. Alcohol and drug use disorders32%
  8. Ischemic heart disease32%

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

Dr. Paredes' patients across all payers

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

Patient panel by age, all payers

Median age 59

Patient panel by sex, all payers

  • Women53%
  • Men47%

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

Dr. Harold E. Paredes wrote 359 Medicare Part D claims in 2024

In 2024, Dr. Paredes wrote 359 Medicare Part D claims for 168 patients. 86% of them were for generic drugs. CMS names the drug for 301 of them, across 9 drugs with 11 or more claims each, at $8,361 in total drug cost. In 2023, CMS named 228 claims across 5 drugs.

Part D claims, 2024359
Drugs named by CMS9
Total drug cost$8,361
Part D patients168

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

  • Generic307 claims86%
  • Brand-name52 claims14%

Dr. Paredes' 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. Paredes' Part D claims, 2024

  • Antibiotics3%11 of 359 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: 2282024: 30132%

Drugs named by CMS: 9 in 2024, 5 in 2023.

See all prescribing by Dr. Paredes

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. Harold E. Paredes ranks in the 82nd percentile for upper gastrointestinal (gi) endoscopy for acid reflux in Medicare

Dr. Paredes accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 132 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Paredes, more than 82% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Where Dr. Paredes ranks in Medicare procedure volume

Upper gastrointestinal (GI) endoscopy for acid reflux
82nd percentile132 procedures
Colonoscopy
74th percentile78 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. Harold E. Paredes received $54,375 in industry payments from 2016 to 2025

CMS Open Payments shows 116 general payments to Dr. Paredes from 17 drug and device companies from 2016 to 2025. Grants make up the largest share, 92% of the total. Boston Scientific Corporation paid the most, $50,741.

General payments to Dr. Paredes by program year, 2016 to 2025

General payments to Dr. Paredes by kind, 2016 to 2025

$54.4Kin total
  • Grants$50,00092%
  • Food and beverage$4,2808%
  • Education$950%

Companies that paid Dr. Paredes the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Paredes

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

Dr. Harold E. Paredes graduated from Icahn School of Medicine at Mount Sinai

Dr. Paredes graduated from Icahn School of Medicine at Mount Sinai in 2013.

  1. Medical schoolIcahn School of Medicine at Mount Sinai

Source: Dmand AI Professional Profile Data

Sources for Dr. Harold E. Paredes'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)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile 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. Harold E. Paredes

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. Harold E. Paredes' NPI number?

Dr. Harold E. Paredes' NPI number is 1447592969. It was assigned on March 22, 2013, and it is active in the NPI Registry.

What kind of doctor is Dr. Harold E. Paredes?

Dr. Harold E. Paredes is a gastroenterologist in Rialto, California. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Harold E. Paredes practice?

Dr. Paredes practices at 2006 North Riverside Avenue Suite A, Rialto, CA 92377. Dr. Paredes' primary practice is ACE Endoscopy and Surgery Center - Rialto in Rialto, California. Dmand AI also links Dr. Paredes to 3 hospitals and 1 group practice or clinic.

What is Dr. Harold E. Paredes' office phone number?

The practice phone on file for Dr. Paredes is (909) 644-4033.

What is Dr. Harold E. Paredes' medical license number?

Dr. Paredes holds California license A162122.

Which hospitals is Dr. Harold E. Paredes affiliated with?

Dr. Paredes is affiliated with Arrowhead Regional Medical Center. Dmand AI links Dr. Paredes to 3 more hospitals.

What medical group is Dr. Harold E. Paredes part of?

Dr. Paredes is linked to San Bernardino Gastroenterology Associates.

Does Dr. Harold E. Paredes accept Medicare?

Yes. CMS data shows Dr. Paredes billed Medicare for 745 services in 2024, and Dr. Paredes accepts Medicare assignment.

How many Medicare patients does Dr. Harold E. Paredes see?

CMS counts 398 Medicare patients who saw Dr. Paredes in 2024, with an average age of 70.

What services does Dr. Harold E. Paredes bill to Medicare?

In 2024, Dr. Paredes' most billed Medicare services were hospital inpatient care (99233), special service (99152) and hospital inpatient care (99223).

Show 4 more questionsShow fewer questions

Where did Dr. Harold E. Paredes go to medical school?

Dr. Paredes graduated from Icahn School of Medicine at Mount Sinai in 2013.

What drugs does Dr. Harold E. Paredes prescribe most?

In 2024 Medicare Part D data, Dr. Paredes' most prescribed drugs by claims were Omeprazole, Pantoprazole Sodium and Peg-3350 And Electrolytes.

Has Dr. Harold E. Paredes received payments from drug or device companies?

CMS Open Payments shows $54,375 in general payments to Dr. Paredes from 17 companies from 2016 to 2025. The largest total came from Boston Scientific Corporation.

How long has Dr. Harold E. Paredes been practicing?

Dr. Paredes graduated from medical school in 2013, 13 years ago.

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