Margaret Alejandro Rivera, MA
Margaret Alejandro Rivera, MA is a provider specialising in Community Health Worker in Tampa, FL, registered under NPI 1003440017. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in Tampa, based on OpenStreetMap data collected Sep 2, 2026. Parking is available about 0.34 mi away at City of Tampa City Center Parking Garage. The nearest transit stop is 782 ft away, served by 22nd Street @ Hillsborough Avenue. A pharmacy sits 0.24 mi from the entrance (Walgreens), which helps if you leave with a prescription.
Getting here and what is nearby
Transit 22nd Street @ Henry Avenue 167 ft ~1 min
Transit 22nd Street @ Henry Avenue 312 ft ~2 min
Transit 22nd Street @ Hillsborough Avenue 782 ft ~3 min
Restaurant Popeyes 0.22 mi ~5 min
2201 East Hillsborough Avenue, Tampa 33610
10:00-22:00
Parking 0.24 mi ~5 min
Pharmacy Walgreens 0.24 mi ~5 min
Parking 0.25 mi ~5 min
Restaurant Wingstop 0.25 mi ~5 min
Restaurant McDonald's 0.29 mi ~6 min
1908 East Hillsborough Avenue, Tampa 33610
06:00-22:00
Parking City of Tampa City Center Parking Garage 0.34 mi ~7 min
Grocery Walmart Supercenter 0.34 mi ~7 min
1720 East Hillsborough Avenue, Tampa 33610
Mo-Su 06:00-23:00
Grocery Sanwa Farmer's Market 0.37 mi ~8 min
Grocery Winn-Dixie 0.41 mi ~9 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Community Health Worker covers
Community health workers (CHW) are lay members of communities who work either for pay or as volunteers in association with the local health care system in both urban and rural environments and usually share ethnicity, language, socioeconomic status and life experiences with the community members they serve. They have been identified by many titles such as community health advisors, lay health advocates, "promotores(as), outreach educators, community health representatives, peer health promoters, and peer health educators. CHWs offer interpretation and translation services, provide culturally appropriate health education and information, assist people in receiving the care they need, give informal counseling and guidance on health behaviors, advocate for individual and community health needs, and provide some direct services such as first aid and blood pressure screening. Some examples of these practitioners are Community Health Aides or Practitioners established under 25 USC 1616 (l) under HHS, Indian Health Service, Public Health Service. NUCC Health Care Provider Taxonomy, code 172V00000X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003440017 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 28, 2020 |
| Last updated | Feb 28, 2020 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | MA |
| Practice address |
5707 N 22ND ST Tampa, FL 33610 (813) 239-8069 Fax (813) 231-7324 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 4 | 4 | 0 | 0 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 4 | 0 | 0 | 2 |
Sum = 43 · next multiple of 10 = 50 · check digit = 7 · actual last digit = 7
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.