Dr. Alberta Cataag Olegario, MD

  • Barstow, CA
  • Internist
NPI1053357012
Medicare services, 2022
167
Part D claims, 2024
29
Industry payments
$1,282
Affiliated sites
1
Medical group
1
Practice address
18564 Us-18, Apple Valley, CA 92307
Practice phone
Call (760) 278-9477
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

Bryan Rivera

Multi-specialty group site · Apple Valley, California

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Dr. Alberta Cataag Olegario is an internist in Barstow, California

Dr. Olegario practices at Bryan Rivera in Apple Valley, California.

Dr. Olegario's NPI, 1053357012, was assigned on June 20, 2006. Dr. Olegario graduated from University of the East College of Medicine in 1973. Dr. Olegario's California license number on file is A38258.

NPI and contact details
NPI enumeration date
June 20, 2006
NPI status
Active
Practice phone
(760) 278-9477
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Female
Estimated age
79
Medical school graduation
1973

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

Dr. Alberta Cataag Olegario practices in Apple Valley and Barstow

Dr. Olegario's primary practice is Bryan Rivera, at 18564 Us-18, Apple Valley, CA 92307. The practice phone is (760) 278-9477. The NPI Registry lists Dr. Olegario's practice address as 801 E Mountain View St, Barstow, CA 92311.

  • Bryan RiveraPrimary
    18564 Us-18, Apple Valley, CA 92307Phone(760) 278-9477
  • NPI Registry address
    801 E Mountain View St, Barstow, CA 92311 · San Bernardino CountyPhone(760) 256-3568

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

Dr. Alberta Cataag Olegario is affiliated with 1 site of care and 1 medical group

Dr. Olegario's primary practice is Bryan Rivera in Apple Valley, California. The medical group on file is Surgical Precision Surgery Associates.

Bryan RiveraMulti-specialty group site · Apple Valley, CaliforniaPrimary
Surgical Precision Surgery AssociatesGastroenterology group, Apple Valley, CA

Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dmand AI tracks the EHR system at Dr. Alberta Cataag Olegario's practice

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

EHR by site
SiteEHR vendor and product
Bryan RiveraAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Alberta Cataag Olegario is one of 16,751 internists in California

Internal medicine is Dr. Olegario's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Olegario's licenses on file in 2 states: California and New Jersey.

Specialties and state licenses

  • Internal medicine, CaliforniaPrimaryLicense A38258 · 1982 to 2025 · taxonomy 207R00000X
  • New Jersey licenseSince 1980

Clinical focus

Dmand AI lists itchy rashes among the conditions Dr. Olegario treats.

Internists near Dr. Olegario

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

16,751internists in California
7internists in Barstow

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

Dr. Alberta Cataag Olegario billed Medicare for 167 services in 2022

CMS data shows 167 Medicare services from Dr. Olegario across 2 procedure codes in 2022. Medicare paid $7,160 for them. Every service was in an office.

Medicare services, 2022167
Paid by Medicare$7,160
Procedure codes2

Dr. Olegario's Medicare services by type, 2021 to 2022

  • 2021
  • 2022
Office and hospital visits
2021: 2172022: 16723%
Tests and treatments
2021: 152022: 0100%
Other services
2021: 152022: 0100%

Dr. Olegario compared with the California median for internists, 2022

  • Dr. Olegario
  • California median
Medicare services
167vs 36154% below
Part D claims
111vs 42174% below

Medians across 15,815 internists in California with Dmand AI profiles that report each measure.

Dr. Olegario's most billed Medicare procedure codes, 2022

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

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

Dr. Alberta Cataag Olegario's patients have a median age of 68

Across all payers, Dmand AI patient panel data puts Dr. Olegario's median patient age at 68, with 64% women.

Dr. Olegario's patients across all payers

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

Patient panel by age, all payers

Median age 68

Patient panel by sex, all payers

  • Women64%
  • Men36%

Source: Dmand AI Patient Panel Data

Dr. Alberta Cataag Olegario wrote 29 Medicare Part D claims in 2024

In 2024, Dr. Olegario wrote 29 Medicare Part D claims. 90% of them were for generic drugs. They cover 6 drugs, with $1,552 in total drug cost. In 2022, CMS named 2,486 claims across 66 drugs.

Part D claims, 202429
Drugs named by CMS6
Total drug cost$1,552

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

  • Generic26 claims90%
  • Brand-name and other3 claims10%

Dr. Olegario's most prescribed drugs by claims, 2023

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2022 to 2023

  • 2022
  • 2023
Claims for drugs CMS names
2022: 2,4862023: 11196%

Drugs named by CMS: 6 in 2023, 66 in 2022.

See all prescribing by Dr. Olegario

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

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Dr. Alberta Cataag Olegario received $1,282 in industry payments from 2016 to 2021

CMS Open Payments shows 42 general payments to Dr. Olegario from 12 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 99% of the total. AstraZeneca Pharmaceuticals LP paid the most, $433.

General payments to Dr. Olegario by program year, 2016 to 2021

General payments to Dr. Olegario by kind, 2016 to 2021

$1.3Kin total
  • Food and beverage$1,26799%
  • Education$151%

Companies that paid Dr. Olegario the most, 2016 to 2021

Share is of all general payments to this clinician.

See all payments to Dr. Olegario

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

Dr. Alberta Cataag Olegario graduated from University of the East College of Medicine

Dr. Olegario graduated from University of the East College of Medicine in 1973. Dr. Olegario is a member of Pri-Med West.

  1. Medical schoolUniversity of the East College of Medicine

Source: Dmand AI Professional Profile Data

Dr. Alberta Cataag Olegario accepts plans from 1 insurance carrier

Dr. Olegario is in network with 1 carrier, including Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 1. Check the plan with the practice before a visit.

  • Blue Cross Blue Shield of Michigan

Plan types Dr. Olegario accepts, by number of carriers

  1. HMO1
  2. POS1
  3. PPO1

Source: Dmand AI Insurance Network Data

Sources for Dr. Alberta Cataag Olegario'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
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 Data
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)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
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. Alberta Cataag Olegario

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. Alberta Cataag Olegario's NPI number?

Dr. Alberta Cataag Olegario's NPI number is 1053357012. It was assigned on June 20, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Alberta Cataag Olegario?

Dr. Alberta Cataag Olegario is an internist in Barstow, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Alberta Cataag Olegario practice?

Dr. Olegario practices at 18564 Us-18, Apple Valley, CA 92307. Dr. Olegario also practices at 801 E Mountain View St, Barstow, CA 92311. Dr. Olegario's primary practice is Bryan Rivera in Apple Valley, California.

What is Dr. Alberta Cataag Olegario's office phone number?

The practice phone on file for Dr. Olegario is (760) 278-9477.

What is Dr. Alberta Cataag Olegario's medical license number?

Dr. Olegario's California license number on file is A38258, one of the licenses on file in 2 states.

Which states has Dr. Alberta Cataag Olegario been licensed in?

Dmand AI has state licenses on file for Dr. Olegario in California (1982 to 2025) and New Jersey (since 1980).

What medical group is Dr. Alberta Cataag Olegario part of?

Dr. Olegario is linked to Surgical Precision Surgery Associates.

Does Dr. Alberta Cataag Olegario accept Medicare?

Yes. CMS data shows Dr. Olegario billed Medicare for 167 services in 2022.

What services does Dr. Alberta Cataag Olegario bill to Medicare?

In 2022, Dr. Olegario's most billed Medicare services were office visit, established patient (99213) and care management and other visits (99441).

Where did Dr. Alberta Cataag Olegario go to medical school?

Dr. Olegario graduated from University of the East College of Medicine in 1973.

Show 4 more questionsShow fewer questions

What drugs does Dr. Alberta Cataag Olegario prescribe most?

In 2023 Medicare Part D data, Dr. Olegario's most prescribed drugs by claims were Levothyroxine Sodium, Metformin HCl and Losartan Potassium.

Has Dr. Alberta Cataag Olegario received payments from drug or device companies?

CMS Open Payments shows $1,282 in general payments to Dr. Olegario from 12 companies from 2016 to 2021. The largest total came from AstraZeneca Pharmaceuticals LP.

How long has Dr. Alberta Cataag Olegario been practicing?

Dr. Olegario graduated from medical school in 1973, 53 years ago.

What insurance does Dr. Alberta Cataag Olegario accept?

Dr. Olegario is in network with 1 carrier, including Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 1. Check the plan with the practice before a visit.

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