Margarita Sierra, MBA, RDN
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2007
- Practice address
- 1900 E Golf Rd, Schaumburg, IL 60173
- Practice phone
- Call (630) 635-5950
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Fay Nutrition
Schaumburg, Illinois
Find Margarita Sierra'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.
Margarita Sierra is a registered dietitian in Schaumburg, Illinois
Margarita Sierra practices at Fay Nutrition in Schaumburg, Illinois.
Margarita Sierra's NPI, 1700077955, was assigned on August 5, 2007. Margarita Sierra holds New Jersey license 877964.
- NPI
- 1700077955NPI Registry (opens in a new tab)
- NPI enumeration date
- August 5, 2007
- NPI status
- Active
- Practice phone
- (630) 635-5950
- 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 Practice Data
Margarita Sierra practices at Fay Nutrition in Schaumburg, Illinois
Margarita Sierra's primary practice is Fay Nutrition, at 1900 E Golf Rd, Schaumburg, IL 60173 in Cook County. The practice phone is (630) 635-5950.
- Fay Nutrition1900 E Golf Rd, Schaumburg, IL 60173 · Cook CountyPhone(630) 635-5950
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Margarita Sierra is affiliated with 2 sites of care and 1 medical group
Margarita Sierra's primary practice is Fay Nutrition in Schaumburg, Illinois. The medical group on file is Fay Nutrition. Dmand AI also links Margarita Sierra to 1 more physician office, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Margarita Sierra's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Margarita Sierra practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Fay Nutrition | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Margarita Sierra is one of 2,002 registered dietitians in Illinois
Dietitian, registered is Margarita Sierra's primary specialty in the NPI Registry, under taxonomy code 133V00000X. Margarita Sierra is licensed in New Jersey.
Specialties and state licenses
- Registered dietitian, New JerseyPrimary
Registered dietitians near Margarita Sierra
Counts of registered dietitians 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
Margarita Sierra's patients have a median age of 50
Across all payers, Dmand AI patient panel data puts Margarita Sierra's median patient age at 50, with 89% women.
Margarita Sierra'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
- Women89%
- Men11%
Source: Dmand AI Patient Panel Data
Sources for Margarita Sierra'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel 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 Margarita Sierra
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Margarita Sierra's NPI number?
Margarita Sierra's NPI number is 1700077955. It was assigned on August 5, 2007, and it is active in the NPI Registry.
What does Margarita Sierra specialize in?
Margarita Sierra is a registered dietitian in Schaumburg, Illinois. The primary specialty in the NPI Registry is Registered Dietitian (taxonomy code 133V00000X).
Where does Margarita Sierra practice?
Margarita Sierra practices at 1900 E Golf Rd, Schaumburg, IL 60173. Margarita Sierra's primary practice is Fay Nutrition in Schaumburg, Illinois. Dmand AI also links Margarita Sierra to 1 physician office.
What is Margarita Sierra's office phone number?
The practice phone on file for Margarita Sierra is (630) 635-5950.
What is Margarita Sierra's medical license number?
Margarita Sierra holds New Jersey license 877964.
What medical group is Margarita Sierra part of?
Margarita Sierra is linked to Fay Nutrition.
How long has Margarita Sierra been practicing?
Margarita Sierra's NPI was assigned in 2007.
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