Maria Diaz, CNP, RN
- Part D claims, 2024
- 445
- Hospital affiliations
- 1
- Industry payments
- $360
- State license
- 1
- Year NPI issued
- 2014
- Practice address
- 1250 16th Street, Santa Monica, CA 90404
- Practice phone
- Call (310) 319-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Maria Diaz's professional email, personal email and mobile number
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Maria Diaz is a women's health nurse practitioner in Santa Monica, California
Maria Diaz practices at UCLA Santa Monica Medical Center in Santa Monica, California, part of University of California Health.
Maria Diaz's NPI, 1205256237, was assigned on April 17, 2014. Maria Diaz holds California license C282760.
- NPI
- 1205256237NPI Registry (opens in a new tab)
- NPI enumeration date
- April 17, 2014
- NPI status
- Active
- Practice phone
- (310) 319-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Maria Diaz practices at UCLA Santa Monica Medical Center in Santa Monica, California
Maria Diaz's primary practice is UCLA Santa Monica Medical Center, at 1250 16th Street, Santa Monica, CA 90404 in Los Angeles County. The practice phone is (310) 319-4000.
- UCLA Santa Monica Medical Center1250 16th Street, Santa Monica, CA 90404 · Los Angeles CountyPhone(310) 319-4000
Source: Dmand AI Affiliation Data
Maria Diaz is affiliated with 1 site of care
Maria Diaz's primary practice is UCLA Santa Monica Medical Center in Santa Monica, California, part of University of California Health.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Maria Diaz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Maria Diaz practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCLA Santa Monica Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Maria Diaz is one of 415 women's health nurse practitioners in California
Women's health is Maria Diaz's primary specialty in the NPI Registry, under taxonomy code 363LW0102X. Maria Diaz is licensed in California.
Specialties and state licenses
- Women's health nurse practitioner, CaliforniaPrimary
Women's health nurse practitioners near Maria Diaz
Counts of women's health nurse practitioners 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
Maria Diaz's patients have a median age of 57
Across all payers, Dmand AI patient panel data puts Maria Diaz's median patient age at 57, with 88% women.
Maria Diaz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women88%
- Men12%
Source: Dmand AI Patient Panel Data
Maria Diaz wrote 445 Medicare Part D claims in 2024
In 2024, Maria Diaz wrote 445 Medicare Part D claims for 109 patients. 78% of them were for generic drugs. CMS names the drug for 323 of them, across 10 drugs with 11 or more claims each, at $45,642 in total drug cost.
Maria Diaz's Part D claims by kind of drug, 2024
- Generic349 claims78%
- Brand-name96 claims22%
Maria Diaz's 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 Maria Diaz's Part D claims, 2024
- Antibiotics7%29 of 445 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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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Maria Diaz received $360 in industry payments from 2024 to 2025
CMS Open Payments shows 12 general payments to Maria Diaz from 8 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Mayne Pharma Inc. paid the most, $235.
General payments to Maria Diaz by program year, 2024 to 2025
Companies that paid Maria Diaz the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Maria Diaz'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Maria Diaz
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Maria Diaz's NPI number?
Maria Diaz's NPI number is 1205256237. It was assigned on April 17, 2014, and it is active in the NPI Registry.
What does Maria Diaz specialize in?
Maria Diaz is a women's health nurse practitioner in Santa Monica, California. The primary specialty in the NPI Registry is Women's Health Nurse Practitioner (taxonomy code 363LW0102X).
Where does Maria Diaz practice?
Maria Diaz practices at 1250 16th Street, Santa Monica, CA 90404. Maria Diaz's primary practice is UCLA Santa Monica Medical Center in Santa Monica, California, part of University of California Health.
What is Maria Diaz's office phone number?
The practice phone on file for Maria Diaz is (310) 319-4000.
What is Maria Diaz's medical license number?
Maria Diaz holds California license C282760.
Which hospitals is Maria Diaz affiliated with?
Maria Diaz practices at UCLA Santa Monica Medical Center in Santa Monica, California.
What drugs does Maria Diaz prescribe most?
In 2024 Medicare Part D data, Maria Diaz's most prescribed drugs by claims were Estradiol, Progesterone and Estradiol (Twice Weekly).
Has Maria Diaz received payments from drug or device companies?
CMS Open Payments shows $360 in general payments to Maria Diaz from 8 companies from 2024 to 2025. The largest total came from Mayne Pharma Inc.
How long has Maria Diaz been practicing?
Maria Diaz's NPI was assigned in 2014.
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