Dr. Mariana Zelia Martinez, MD
- Medicare services, 2024
- 61
- Medicare patients, 2024
- 70
- Part D claims, 2024
- 39
- Hospital affiliations
- 2
- Medical groups
- 3
- Practice address
- 2051 Marengo St, Room C2K100, Los Angeles, CA 90033
- Practice phone
- Call (323) 226-2800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Martinez's professional email, personal email and mobile number
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Dr. Mariana Zelia Martinez is an emergency medicine physician in Los Angeles, California
Dr. Martinez practices at Los Angeles General Medical Center in Los Angeles, California, part of County of Los Angeles.
Dr. Martinez's NPI, 1053765693, was assigned on April 20, 2016. Dr. Martinez graduated from Keck School of Medicine of USC in 2016. Dr. Martinez holds California license A150317.
- NPI
- 1053765693NPI Registry (opens in a new tab)
- NPI enumeration date
- April 20, 2016
- NPI status
- Active
- Practice phone
- (323) 226-2800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Mariana Zelia Martinez practices at Los Angeles General Medical Center in Los Angeles, California
Dr. Martinez's primary practice is Los Angeles General Medical Center, at 2051 Marengo St, Room C2K100, Los Angeles, CA 90033 in Los Angeles County. The practice phone is (323) 226-2800.
- Los Angeles General Medical Center2051 Marengo St, Room C2K100, Los Angeles, CA 90033 · Los Angeles CountyPhone(323) 226-2800
Source: Dmand AI Affiliation Data
Dr. Mariana Zelia Martinez is affiliated with 2 sites of care and 3 medical groups
Dr. Martinez's primary practice is Los Angeles General Medical Center in Los Angeles, California, part of County of Los Angeles. Dr. Martinez is also affiliated with PIH Health Good Samaritan Hospital. The medical group on file is USC Care Medical Group. Dmand AI also links Dr. Martinez to 2 more medical groups, each named with a free account. Dr. Martinez's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mariana Zelia Martinez's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Martinez practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Los Angeles General Medical Center | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mariana Zelia Martinez is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Martinez's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Martinez is board certified in emergency medicine by the American Board of Emergency Medicine. Dr. Martinez is licensed in California.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
Emergency medicine physicians near Dr. Martinez
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. Mariana Zelia Martinez billed Medicare for 61 services in 2024
CMS data shows 61 Medicare services from Dr. Martinez across 2 procedure codes in 2024, for 70 Medicare patients. Medicare paid $6,569 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Martinez's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2222024: 6173%
- Tests and treatments
- 2023: 572024: 0100%
Dr. Martinez compared with the California median for emergency medicine physicians, 2024
- Dr. Martinez
- California median
- Medicare services
- 61vs 26577% below
- Medicare patients
- 70vs 24371% 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. Martinez'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. Mariana Zelia Martinez treated 70 Medicare patients in 2024, average age 77
CMS counts 70 Medicare patients who saw Dr. Martinez in 2024. The largest group is 75 to 84, with 22 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 51% are also on Medicaid. Their average risk score is 2.76, 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. Martinez's median patient age at 50, with 47% women.
Dr. Martinez's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Martinez's Medicare patients by sex, 2024
- Women4159%
- Men2941%
Chronic conditions among Dr. Martinez's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis57%
- Anxiety41%
- Chronic kidney disease41%
- Ischemic heart disease41%
- Diabetes40%
- Mood disorders40%
Share of Medicare patients with each condition. A patient can have several.
Dr. Martinez's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 50
Patient panel by sex, all payers
- Women47%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mariana Zelia Martinez wrote 39 Medicare Part D claims in 2024
In 2024, Dr. Martinez wrote 39 Medicare Part D claims for 32 patients. 92% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $47 in total drug cost. In 2022, CMS named 40 claims across 3 drugs.
Dr. Martinez's Part D claims by kind of drug, 2024
- Generic36 claims92%
- Brand-name and other3 claims8%
Dr. Martinez'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.
Drug classes CMS tracks in Dr. Martinez's Part D claims, 2024
- Antibiotics54%21 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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 402023: 1173%
Drugs named by CMS: 1 in 2023, 3 in 2022.
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. Mariana Zelia Martinez graduated from Keck School of Medicine of USC
Dr. Martinez graduated from Keck School of Medicine of USC in 2016.
- Medical school
- Board certified in emergency medicine
Source: Dmand AI Professional Profile Data
Dr. Mariana Zelia Martinez accepts plans from 4 insurance carriers
Dr. Martinez is in network with 4 carriers, including Elevance, United Healthcare and Blue Cross and Blue Shield of Kansas City. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Elevance
- United Healthcare
- Blue Cross and Blue Shield of Kansas City
- Molina
Plan types Dr. Martinez accepts, by number of carriers
- Medicare3
- HMO2
- POS2
- EPO1
- Medicaid1
- PPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Mariana Zelia Martinez'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 and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Mariana Zelia Martinez
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. Mariana Zelia Martinez's NPI number?
Dr. Mariana Zelia Martinez's NPI number is 1053765693. It was assigned on April 20, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Mariana Zelia Martinez?
Dr. Mariana Zelia Martinez is an emergency medicine physician in Los Angeles, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Mariana Zelia Martinez practice?
Dr. Martinez practices at 2051 Marengo St, Room C2K100, Los Angeles, CA 90033. Dr. Martinez's primary practice is Los Angeles General Medical Center in Los Angeles, California, part of County of Los Angeles. Dmand AI also links Dr. Martinez to 2 medical groups.
What is Dr. Mariana Zelia Martinez's office phone number?
The practice phone on file for Dr. Martinez is (323) 226-2800.
What is Dr. Mariana Zelia Martinez's medical license number?
Dr. Martinez holds California license A150317.
Which hospitals is Dr. Mariana Zelia Martinez affiliated with?
Dr. Martinez practices at Los Angeles General Medical Center in Los Angeles, California. Dr. Martinez is also affiliated with PIH Health Good Samaritan Hospital.
What medical group is Dr. Mariana Zelia Martinez part of?
Dr. Martinez is linked to USC Care Medical Group. Dmand AI links Dr. Martinez to 2 more medical groups.
Does Dr. Mariana Zelia Martinez accept Medicare?
Yes. CMS data shows Dr. Martinez billed Medicare for 61 services in 2024.
How many Medicare patients does Dr. Mariana Zelia Martinez see?
CMS counts 70 Medicare patients who saw Dr. Martinez in 2024, with an average age of 77.
Is Dr. Mariana Zelia Martinez board certified?
Yes. Dr. Martinez is board certified in emergency medicine by the American Board of Emergency Medicine.
Show 5 more questionsShow fewer questions
What services does Dr. Mariana Zelia Martinez bill to Medicare?
In 2024, Dr. Martinez's most billed Medicare services were emergency department visit (99285) and emergency department visit (99284).
Where did Dr. Mariana Zelia Martinez go to medical school?
Dr. Martinez graduated from Keck School of Medicine of USC in 2016.
What drugs does Dr. Mariana Zelia Martinez prescribe most?
In 2023 Medicare Part D data, Dr. Martinez's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
How long has Dr. Mariana Zelia Martinez been practicing?
Dr. Martinez graduated from medical school in 2016, 10 years ago.
What insurance does Dr. Mariana Zelia Martinez accept?
Dr. Martinez is in network with 4 carriers, including Elevance, United Healthcare and Blue Cross and Blue Shield of Kansas City. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
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