Dr. Colleen Marie Rivers, MD

  • Orange, CA
  • Emergency medicine physician
NPI1164669925
Medicare services, 2024
164
Medicare patients, 2024
105
Part D claims, 2024
39
Hospital affiliations
1
Medical group
1
Practice address
1100 West Stewart Dr, Orange, CA 92868
Practice phone
Call (714) 633-9111
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Providence St. Joseph Hospital Orange

Hospital · Orange, California

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Dr. Colleen Marie Rivers is an emergency medicine physician in Orange, California

Dr. Rivers practices at Providence St. Joseph Hospital Orange in Orange, California, part of Providence Health & Services.

Dr. Rivers' NPI, 1164669925, was assigned on January 15, 2009. Dr. Rivers graduated from New York University School of Medicine in 2007. Dr. Rivers holds Massachusetts license 231778.

NPI and contact details
NPI enumeration date
January 15, 2009
NPI status
Active
Practice phone
(714) 633-9111
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
45
Medical school graduation
2007

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

Dr. Colleen Marie Rivers practices at Providence St. Joseph Hospital Orange in Orange, California

Dr. Rivers' primary practice is Providence St. Joseph Hospital Orange, at 1100 West Stewart Dr, Orange, CA 92868 in Orange County. The practice phone is (714) 633-9111.

Source: Dmand AI Affiliation Data

Dr. Colleen Marie Rivers is affiliated with 1 site of care and 1 medical group

Dr. Rivers' primary practice is Providence St. Joseph Hospital Orange in Orange, California, part of Providence Health & Services. The medical group on file is Emergency Medicine Specialists of Orange County.

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

Dmand AI tracks the EHR system at Dr. Colleen Marie Rivers' practice

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

EHR by site
SiteEHR vendor and product
Providence St. Joseph Hospital OrangeAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Colleen Marie Rivers is one of 7,423 emergency medicine physicians in California

Emergency medicine is Dr. Rivers' primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Rivers' licenses on file in 2 states: Massachusetts and New Jersey.

Specialties and state licenses

  • Emergency medicine, MassachusettsPrimaryLicense 231778 · taxonomy 207P00000X
  • New Jersey licenseLicense 25MH08805500

Emergency medicine physicians near Dr. Rivers

Counts of emergency medicine physicians 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. Colleen Marie Rivers billed Medicare for 164 services in 2024

CMS data shows 164 Medicare services from Dr. Rivers across 3 procedure codes in 2024, for 105 Medicare patients. Medicare paid $15,899 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024164
Medicare patients105
Paid by Medicare$15,899
Procedure codes3

Dr. Rivers' Medicare services by type, 2021 to 2024

  • 2021
  • 2024
Office and hospital visits
2021: 1132024: 9119%
Tests and treatments
2021: 922024: 7321%

Dr. Rivers compared with the California median for emergency medicine physicians, 2024

  • Dr. Rivers
  • California median
Medicare services
164vs 26538% below
Medicare patients
105vs 24357% below
Part D claims
11vs 6282% below

Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.

Dr. Rivers' 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. Rivers

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

Dr. Colleen Marie Rivers treated 105 Medicare patients in 2024, average age 73

CMS counts 105 Medicare patients who saw Dr. Rivers in 2024. The largest group is 65 to 74, with 40 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 41% are also on Medicaid. Their average risk score is 3.17, 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. Rivers' median patient age at 51, with 57% women.

Medicare patients, 2024105
Average age73
Average risk score3.17
Also on Medicaid41%

Dr. Rivers' Medicare patients by age, 2024

Dr. Rivers' Medicare patients by sex, 2024

  • Women6360%
  • Men4240%

Chronic conditions among Dr. Rivers' Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis60%
  4. Chronic kidney disease53%
  5. Diabetes51%
  6. Anxiety46%
  7. Mood disorders46%
  8. Depression43%

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

Dr. Rivers' 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

  • Women57%
  • Men43%

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

Dr. Colleen Marie Rivers wrote 39 Medicare Part D claims in 2024

In 2024, Dr. Rivers wrote 39 Medicare Part D claims for 31 patients. 100% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $68 in total drug cost. In 2020, CMS named 12 claims across 1 drug.

Part D claims, 202439
Drugs named by CMS1
Total drug cost$68
Part D patients31

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

  • Antibiotics56%22 of 39 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, 2020 to 2024

  • 2020
  • 2024
Claims for drugs CMS names
2020: 122024: 118%

Drugs named by CMS: 1 in 2024, 1 in 2020.

See all prescribing by Dr. Rivers

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. Colleen Marie Rivers graduated from New York University School of Medicine

Dr. Rivers graduated from New York University School of Medicine in 2007.

  1. Medical schoolNew York University School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Colleen Marie Rivers'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)
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. Colleen Marie Rivers

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. Colleen Marie Rivers' NPI number?

Dr. Colleen Marie Rivers' NPI number is 1164669925. It was assigned on January 15, 2009, and it is active in the NPI Registry.

What kind of doctor is Dr. Colleen Marie Rivers?

Dr. Colleen Marie Rivers is an emergency medicine physician in Orange, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).

Where does Dr. Colleen Marie Rivers practice?

Dr. Rivers practices at 1100 West Stewart Dr, Orange, CA 92868. Dr. Rivers' primary practice is Providence St. Joseph Hospital Orange in Orange, California, part of Providence Health & Services.

What is Dr. Colleen Marie Rivers' office phone number?

The practice phone on file for Dr. Rivers is (714) 633-9111.

What is Dr. Colleen Marie Rivers' medical license number?

Dr. Rivers holds Massachusetts license 231778, one of the licenses on file in 2 states.

Which states has Dr. Colleen Marie Rivers been licensed in?

Dmand AI has state licenses on file for Dr. Rivers in Massachusetts and New Jersey.

Which hospitals is Dr. Colleen Marie Rivers affiliated with?

Dr. Rivers practices at Providence St. Joseph Hospital Orange in Orange, California.

What medical group is Dr. Colleen Marie Rivers part of?

Dr. Rivers is linked to Emergency Medicine Specialists of Orange County.

Does Dr. Colleen Marie Rivers accept Medicare?

Yes. CMS data shows Dr. Rivers billed Medicare for 164 services in 2024.

How many Medicare patients does Dr. Colleen Marie Rivers see?

CMS counts 105 Medicare patients who saw Dr. Rivers in 2024, with an average age of 73.

Show 4 more questionsShow fewer questions

What services does Dr. Colleen Marie Rivers bill to Medicare?

In 2024, Dr. Rivers' most billed Medicare services were heart test or procedure (93010), emergency department visit (99285) and critical care (99291).

Where did Dr. Colleen Marie Rivers go to medical school?

Dr. Rivers graduated from New York University School of Medicine in 2007.

What drugs does Dr. Colleen Marie Rivers prescribe most?

In 2024 Medicare Part D data, Dr. Rivers' most prescribed drugs by claims were Cephalexin.

How long has Dr. Colleen Marie Rivers been practicing?

Dr. Rivers graduated from medical school in 2007, 19 years ago.

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