Melissa Islas
Melissa Islas is an Acute Care Nurse Practitioner in Tulsa, OK, registered under NPI 1003645409. 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 Tulsa, based on OpenStreetMap data collected Sep 19, 2026. Parking is available about 0.41 mi away. The nearest transit stop is 831 ft away, served by Wheeling Avenue. If you arrive early, there is a coffee shop 0.47 mi away.
Getting here and what is nearby
Transit 71st Street & Utica Avenue 286 ft ~2 min
Restaurant Aesthetic Meal Prep 584 ft ~3 min
1660 East 71st Street South, Tulsa 74136-5191
Mo-Tu 09:00-18:00; We 09:00-17:00; Fr 10:00-15:00; Sa-Su 11:00-17:00
Transit Wheeling Avenue 758 ft ~3 min
Transit Wheeling Avenue 831 ft ~4 min
Restaurant Braum's 1,029 ft ~4 min
Parking 0.22 mi ~5 min
Restaurant Taco Bell 0.22 mi ~5 min
1535 East 71st Street South, Tulsa 74136
Su-Mo 09:00-22:00
Hotel Marriott 0.25 mi ~6 min
Gas station QuikTrip 0.37 mi ~8 min
Grocery Hornbill Oriental Grocery 0.37 mi ~8 min
Convenience QuikTrip 0.38 mi ~8 min
Parking 0.38 mi ~8 min
Parking 0.41 mi ~9 min
Coffee Starbucks 0.42 mi ~9 min
Coffee Hey Boba 0.45 mi ~10 min
Coffee Scooter's Coffee 0.47 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 |
|---|---|---|
| 219615 | OK | Acute Care Nurse Practitioner primary |
This provider holds licence 219615 issued in OK. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Nurse Practitioner
- PAC ID
- 0345772679
- Enrollment ID
- I20241011001674
Medicare enrolment is recorded as approved under the provider type Practitioner - Nurse Practitioner. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Acute Care covers
Definition to come... NUCC Health Care Provider Taxonomy, code 363LA2100X
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 | 1003645409 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 1, 2024 |
| Last updated | Apr 17, 2026 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Practice address |
1120 S UTICA AVE Tulsa, OK 74104 (918) 592-0999 |
| Mailing address |
1923 S UTICA AVE Tulsa, OK 74104 |
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 | 4 | 5 | 4 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 3 | 4 | 1 | 4 | 0 |
Sum = 41 · next multiple of 10 = 50 · check digit = 9 · actual last digit = 9
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.