RENUYOU MD
RENUYOU MD is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003691858, based in Darien, CT. It is classified under Family Medicine Physician.
Getting there
Here is what surrounds this office in Darien, based on OpenStreetMap data collected Oct 15, 2026. Parking is available about 306 ft away. The nearest transit stop is 0.41 mi away, served by Heights Rd @ 310 Heights Rd.
Getting here and what is nearby
Parking 57 ft ~1 min
Parking 103 ft ~1 min
Parking 306 ft ~2 min
Restaurant Jake's Place 502 ft ~2 min
4 Ledge Road, Darien 06820
Gas station Shell 808 ft ~4 min
164 Noroton Avenue, Darien 06820
Gas station Gulf 0.20 mi ~4 min
180 Noroton Avenue, Darien 06820
Gas station Mobil 0.21 mi ~5 min
179 Noroton Avenue, Darien 06820
Transit Edgerton St @ Heights Rd 0.31 mi ~7 min
Grocery Palmer's Market 0.38 mi ~8 min
264 Heights Road, Darien 06820
Transit Heights Rd @ 310 Heights Rd 0.41 mi ~9 min
Restaurant Atomic Wings 0.46 mi ~10 min
Restaurant Papa Joe's Ristorante Italiano 0.50 mi ~11 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 Family Medicine covers
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity. NUCC Health Care Provider Taxonomy, code 207Q00000X
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-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1003691858 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Aug 29, 2023 |
| Last updated | Aug 29, 2023 |
| Status | Active |
| Practice address |
106 NOROTON AVE Darien, CT 06820 (203) 202-7688 |
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 | 6 | 9 | 1 | 8 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 3 | 9 | 2 | 8 | 1 |
Sum = 52 · next multiple of 10 = 60 · check digit = 8 · actual last digit = 8
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.