Amy Michelle Diaz
- Hospital affiliations
- 2
- Industry payments
- $216
- Year NPI issued
- 2021
- Practice address
- 1000 Fourth Street SW, Mason City, IA 50401
- Practice phone
- Call (641) 428-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Amy Diaz's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Amy Michelle Diaz is a family nurse practitioner in Mason City, Iowa
Amy Diaz practices at MercyOne North Iowa Medical Center in Mason City, Iowa, part of Trinity Health.
Amy Diaz's NPI, 1588241384, was assigned on March 26, 2021.
- NPI
- 1588241384NPI Registry (opens in a new tab)
- NPI enumeration date
- March 26, 2021
- NPI status
- Active
- Practice phone
- (641) 428-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Amy Michelle Diaz practices at MercyOne North Iowa Medical Center in Mason City, Iowa
Amy Diaz's primary practice is MercyOne North Iowa Medical Center, at 1000 Fourth Street SW, Mason City, IA 50401 in Cerro Gordo County. The practice phone is (641) 428-7000.
- MercyOne North Iowa Medical Center1000 Fourth Street SW, Mason City, IA 50401 · Cerro Gordo CountyPhone(641) 428-7000
Source: Dmand AI Affiliation Data
Amy Michelle Diaz is affiliated with 3 sites of care
Amy Diaz's primary practice is MercyOne North Iowa Medical Center in Mason City, Iowa, part of Trinity Health. Dmand AI also links Amy Diaz to 1 hospital and 1 hospice, each named with a free account. Amy Diaz'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 Amy Michelle Diaz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Amy Diaz practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MercyOne North Iowa Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Trinity Health and 6.2K+ hospitals, with verified contacts in the same login.
Amy Michelle Diaz is one of 1,785 family nurse practitioners in Iowa
Family is Amy Diaz's primary specialty in the NPI Registry, under taxonomy code 363LF0000X.
Specialties and state licenses
- Family nurse practitionerPrimary
Family nurse practitioners near Amy Diaz
Counts of family 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
Amy Michelle Diaz's patients have a median age of 75
Across all payers, Dmand AI patient panel data puts Amy Diaz's median patient age at 75, with 25% women.
Amy 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 75
Patient panel by sex, all payers
- Women25%
- Men75%
Source: Dmand AI Patient Panel Data
Amy Michelle Diaz received $216 in industry payments in 2025
CMS Open Payments shows 3 general payments to Amy Diaz from 3 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $121.
Companies that paid Amy Diaz the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Amy Michelle 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 |
| 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 Amy Michelle 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 Amy Michelle Diaz's NPI number?
Amy Michelle Diaz's NPI number is 1588241384. It was assigned on March 26, 2021, and it is active in the NPI Registry.
What does Amy Michelle Diaz specialize in?
Amy Michelle Diaz is a family nurse practitioner in Mason City, Iowa. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Amy Michelle Diaz practice?
Amy Diaz practices at 1000 Fourth Street SW, Mason City, IA 50401. Amy Diaz's primary practice is MercyOne North Iowa Medical Center in Mason City, Iowa, part of Trinity Health. Dmand AI also links Amy Diaz to 1 hospital and 1 hospice.
What is Amy Michelle Diaz's office phone number?
The practice phone on file for Amy Diaz is (641) 428-7000.
Which hospitals is Amy Michelle Diaz affiliated with?
Amy Diaz practices at MercyOne North Iowa Medical Center in Mason City, Iowa. Dmand AI links Amy Diaz to 1 more hospital.
Has Amy Michelle Diaz received payments from drug or device companies?
CMS Open Payments shows $216 in general payments to Amy Diaz from 3 companies from 2025 to 2025. The largest total came from Novo Nordisk Inc.
How long has Amy Michelle Diaz been practicing?
Amy Diaz graduated from medical school in 2019, 7 years ago.
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