Maureen Vieira, N.P.
Maureen Vieira, N.P. is a Gynecology Physician in Modesto, CA, registered under NPI 1003022120. 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 Modesto, based on OpenStreetMap data collected Aug 30, 2026. Parking is available about 503 ft away. A pharmacy sits 0.34 mi from the entrance (CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.37 mi away.
Getting here and what is nearby
Parking 227 ft ~1 min
Restaurant Wendy's 238 ft ~1 min
1501 McHenry Avenue
Parking 341 ft ~2 min
Restaurant Denny's 330 ft ~2 min
1525 McHenry Avenue
Hotel Ramada Modesto Yosemite Area 365 ft ~2 min
Coffee Dutch Bros. Coffee 541 ft ~3 min
Parking 503 ft ~2 min
Convenience Fast & Easy Mart 684 ft ~3 min
Gas station Chevron 685 ft ~3 min
Restaurant La Parrilla Mexican Restaurant & Bar 0.21 mi ~5 min
1700 McHenry Avenue, Modesto 95350
Grocery Sprouts Farmers Market 0.30 mi ~7 min
1700 McHenry Avenue, Modesto 95350
Pharmacy CVS Pharmacy 0.34 mi ~7 min
Coffee Starbucks 0.37 mi ~8 min
Grocery Safeway 0.45 mi ~10 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| E25237 | CA | Gynecology Physician primary |
This provider holds licence E25237 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
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 Gynecology covers
A physician who specializes in diagnosis, treatment, and management of patients with gynecologic conditions. NUCC Health Care Provider Taxonomy, code 207VG0400X
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 | 1003022120 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 15, 2007 |
| Last updated | May 4, 2017 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | N.P. |
| Practice address |
200 W COOLIDGE AVE Modesto, CA 95350 (209) 577-5005 Fax (209) 521-1533 |
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 | 0 | 2 | 2 | 1 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 2 | 4 | 1 | 4 |
Sum = 40 · next multiple of 10 = 40 · check digit = 0 · actual last digit = 0
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.