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Dr. Marcus Ernest Olivares-Perez, MD
NPI1457937062PAC ID6709326622
- Medicare services, 2024
- 25
- Medicare patients, 2024
- 15
- Part D claims, 2024
- 35
- Publications
- 2
- Hospital affiliations
- 1
- Practice address
- 2823 Fresno Street, Fresno, CA 93721
- Practice phone
- Call (559) 459-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Olivares-Perez's professional email, personal email and mobile number
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Dr. Marcus Ernest Olivares-Perez is an emergency medicine physician in Fresno, California
Dr. Olivares-Perez practices at Community Regional Medical Center in Fresno, California, part of Community Health System.
Dr. Olivares-Perez's NPI, 1457937062, was assigned on March 23, 2021. Dr. Olivares-Perez graduated from UCSF School of Medicine in 2021. Dr. Olivares-Perez holds California license A198160.
NPI and contact details
- NPI
- 1457937062NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6709326622
- NPI enumeration date
- March 23, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (559) 459-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Marcus Ernest Olivares-Perez practices at Community Regional Medical Center in Fresno, California
Dr. Olivares-Perez's primary practice is Community Regional Medical Center, at 2823 Fresno Street, Fresno, CA 93721 in Fresno County. The practice phone is (559) 459-6000.
- Community Regional Medical Center2823 Fresno Street, Fresno, CA 93721 · Fresno CountyPhone(559) 459-6000
Source: Dmand AI Affiliation Data
Dr. Marcus Ernest Olivares-Perez is affiliated with 1 site of care and 3 medical groups
Dr. Olivares-Perez's primary practice is Community Regional Medical Center in Fresno, California, part of Community Health System. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Olivares-Perez to 2 more medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Marcus Ernest Olivares-Perez's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Olivares-Perez practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Community Regional Medical Center | Available with a free account |
| +2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Marcus Ernest Olivares-Perez is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Olivares-Perez's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Olivares-Perez is licensed in California.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
Emergency medicine physicians near Dr. Olivares-Perez
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
7,423emergency medicine physicians in California129emergency medicine physicians in Fresno61emergency medicine physicians at Community Regional Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Marcus Ernest Olivares-Perez billed Medicare for 25 services in 2024
CMS data shows 25 Medicare services from Dr. Olivares-Perez across 2 procedure codes in 2024, for 15 Medicare patients. Medicare paid $1,821 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202425
Medicare patients15
Paid by Medicare$1,821
Procedure codes2
Dr. Olivares-Perez's Medicare services by type, 2024
- Office and hospital visits13
- Tests and treatments12
Dr. Olivares-Perez compared with the California median for emergency medicine physicians, 2024
- Dr. Olivares-Perez
- California median
- Medicare services
- 25vs 26591% below
- Medicare patients
- 15vs 24394% below
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Olivares-Perez'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Marcus Ernest Olivares-Perez treated 15 Medicare patients in 2024, average age 68
CMS counts 15 Medicare patients who saw Dr. Olivares-Perez in 2024. 75% of them have high blood pressure. Their average risk score is 1.12, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Olivares-Perez's median patient age at 38, with 49% women.
Medicare patients, 202415
Average age68
Average risk score1.12
Chronic conditions among Dr. Olivares-Perez's Medicare patients, 2024
- High blood pressure75%
Share of Medicare patients with each condition. A patient can have several.
Dr. Olivares-Perez's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 38
Patient panel by sex, all payers
- Women49%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Marcus Ernest Olivares-Perez wrote 35 Medicare Part D claims in 2024
In 2024, Dr. Olivares-Perez wrote 35 Medicare Part D claims for 27 patients. 97% of them were for generic drugs.
Part D claims, 202435
Part D patients27
Dr. Olivares-Perez's Part D claims by kind of drug, 2024
- Generic34 claims97%
- Brand-name and other1 claims3%
Drug classes CMS tracks in Dr. Olivares-Perez's Part D claims, 2024
- Antibiotics34%12 of 35 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Marcus Ernest Olivares-Perez takes part in Medicare
Dr. Olivares-Perez accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Marcus Ernest Olivares-Perez has 2 publications on record
Dmand AI links 2 papers to Dr. Olivares-Perez in 2022. Dr. Olivares-Perez's most frequent co-author is Sally M. Graglia, MD.
Papers2
Dr. Olivares-Perez's most frequent co-authors
Recent publications by Dr. Olivares-Perez
See who Dr. Olivares-Perez researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Olivares-Perez works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Marcus Ernest Olivares-Perez graduated from UCSF School of Medicine
Dr. Olivares-Perez graduated from UCSF School of Medicine in 2021.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Marcus Ernest Olivares-Perez's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Marcus Ernest Olivares-Perez
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. Marcus Ernest Olivares-Perez's NPI number?
Dr. Marcus Ernest Olivares-Perez's NPI number is 1457937062. It was assigned on March 23, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Marcus Ernest Olivares-Perez?
Dr. Marcus Ernest Olivares-Perez is an emergency medicine physician in Fresno, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Marcus Ernest Olivares-Perez practice?
Dr. Olivares-Perez practices at 2823 Fresno Street, Fresno, CA 93721. Dr. Olivares-Perez's primary practice is Community Regional Medical Center in Fresno, California, part of Community Health System. Dmand AI also links Dr. Olivares-Perez to 2 medical groups.
What is Dr. Marcus Ernest Olivares-Perez's office phone number?
The practice phone on file for Dr. Olivares-Perez is (559) 459-6000.
What is Dr. Marcus Ernest Olivares-Perez's medical license number?
Dr. Olivares-Perez holds California license A198160.
Which hospitals is Dr. Marcus Ernest Olivares-Perez affiliated with?
Dr. Olivares-Perez practices at Community Regional Medical Center in Fresno, California.
What medical group is Dr. Marcus Ernest Olivares-Perez part of?
Dr. Olivares-Perez is linked to The Permanente Medical Group, Inc. Dmand AI links Dr. Olivares-Perez to 2 more medical groups.
Does Dr. Marcus Ernest Olivares-Perez accept Medicare?
Yes. CMS data shows Dr. Olivares-Perez billed Medicare for 25 services in 2024, and Dr. Olivares-Perez accepts Medicare assignment.
How many Medicare patients does Dr. Marcus Ernest Olivares-Perez see?
CMS counts 15 Medicare patients who saw Dr. Olivares-Perez in 2024, with an average age of 68.
What services does Dr. Marcus Ernest Olivares-Perez bill to Medicare?
In 2024, Dr. Olivares-Perez's most billed Medicare services were emergency department visit (99285) and heart test or procedure (93010).
Show 4 more questionsShow fewer questions
Where did Dr. Marcus Ernest Olivares-Perez go to medical school?
Dr. Olivares-Perez graduated from UCSF School of Medicine in 2021.
How long has Dr. Marcus Ernest Olivares-Perez been practicing?
Dr. Olivares-Perez graduated from medical school in 2021, 5 years ago.
Does Dr. Marcus Ernest Olivares-Perez do research?
Dmand AI links 2 publications to Dr. Olivares-Perez.
Who does Dr. Marcus Ernest Olivares-Perez publish with?
Dr. Olivares-Perez's most frequent co-authors are Sally M. Graglia, MD (1 shared paper).
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