Sandy Martinez Guadan, FNP-BC
- Industry payments
- $229
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2025
- Practice address
- 30 Carnoustie Way, Coto De Caza, CA 92679
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Medical group
Find Sandy Guadan'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.
Sandy Martinez Guadan is a primary care nurse practitioner in Coto De Caza, California
Sandy Guadan practices with ONclick Healthcare, a medical group.
Sandy Guadan's NPI, 1639975162, was assigned on February 24, 2025. Sandy Guadan holds California license 95034088.
- NPI
- 1639975162NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0941785661
- NPI enumeration date
- February 24, 2025
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 28
- Medical school graduation
- 2024
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Doctors and Clinicians National Downloadable File (CMS)
Sandy Martinez Guadan's practice address is in Coto De Caza, California
Sandy Guadan's practice address in the NPI Registry is 30 Carnoustie Way, Coto De Caza, CA 92679.
- NPI Registry address30 Carnoustie Way, Coto De Caza, CA 92679
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Sandy Martinez Guadan is affiliated with 1 medical group
Sandy Guadan is part of ONclick Healthcare, a medical group in Westlake Village, California.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Sandy Martinez Guadan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Sandy Guadan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| ONclick Healthcare | 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 ONclick Healthcare and 6.2K+ hospitals, with verified contacts in the same login.
Sandy Martinez Guadan is one of 860 primary care nurse practitioners in California
Primary care is Sandy Guadan's primary specialty in the NPI Registry, under taxonomy code 363LP2300X. Sandy Guadan is licensed in California.
Specialties and state licenses
- Primary care nurse practitioner, CaliforniaPrimary
Primary care nurse practitioners near Sandy Guadan
Counts of primary care 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
Sandy Martinez Guadan's patients have a median age of 69
Across all payers, Dmand AI patient panel data puts Sandy Guadan's median patient age at 69, with 51% women.
Sandy Guadan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women51%
- Men46%
Source: Dmand AI Patient Panel Data
Sandy Martinez Guadan offers telehealth to Medicare patients
Sandy Guadan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Sandy Guadan as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Sandy Martinez Guadan received $229 in industry payments in 2025
CMS Open Payments shows 7 general payments to Sandy Guadan from 4 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Eli Lilly and Company paid the most, $154.
Companies that paid Sandy Guadan 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 Sandy Martinez Guadan'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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 Sandy Martinez Guadan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Sandy Martinez Guadan's NPI number?
Sandy Martinez Guadan's NPI number is 1639975162. It was assigned on February 24, 2025, and it is active in the NPI Registry.
What does Sandy Martinez Guadan specialize in?
Sandy Martinez Guadan is a primary care nurse practitioner in Coto De Caza, California. The primary specialty in the NPI Registry is Primary Care Nurse Practitioner (taxonomy code 363LP2300X).
Where does Sandy Martinez Guadan practice?
Sandy Guadan practices at 30 Carnoustie Way, Coto De Caza, CA 92679. Sandy Guadan's primary practice is ONclick Healthcare, a medical group.
What is Sandy Martinez Guadan's medical license number?
Sandy Guadan holds California license 95034088.
What medical group is Sandy Martinez Guadan part of?
Sandy Guadan is part of ONclick Healthcare in Westlake Village, California.
Does Sandy Martinez Guadan accept Medicare?
Yes. CMS lists Sandy Guadan as accepting Medicare assignment.
Does Sandy Martinez Guadan offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Sandy Guadan as offering telehealth services.
Has Sandy Martinez Guadan received payments from drug or device companies?
CMS Open Payments shows $229 in general payments to Sandy Guadan from 4 companies from 2025 to 2025. The largest total came from Eli Lilly and Company.
How long has Sandy Martinez Guadan been practicing?
Sandy Guadan graduated from medical school in 2024, 2 years ago.
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