Karen Mackenney, RN, FNP
Karen Mackenney, RN, FNP is a Family Nurse Practitioner in Shenandoah, TX, registered under NPI 1003014366.
Getting there
Here is what surrounds this office in Shenandoah, based on OpenStreetMap data collected Aug 29, 2026. Parking is available about 0.32 mi away. There is EV charging 0.48 mi from the office (Tesla Supercharger) — useful if you are driving in from out of town. If you arrive early, there is a coffee shop 0.36 mi away.
Getting here and what is nearby
Hotel TownePlace Suites 0.27 mi ~6 min
Parking 0.28 mi ~6 min
Parking 0.28 mi ~6 min
Parking 0.32 mi ~7 min
Restaurant Twin Peaks 0.34 mi ~7 min
Restaurant Outback Steakhouse 0.34 mi ~7 min
Hotel Comfort Suites 0.35 mi ~7 min
Coffee Starbucks 0.36 mi ~8 min
18358 Interstate 45 South, Woodlands 77384
Mo-Fr 05:00-22:00; Sa-Su 05:30-22:00; PH closed
Hotel Hampton 0.38 mi ~8 min
18484 Interstate 45 South, The Woodlands 77384
Restaurant Red Lobster 0.38 mi ~8 min
EV charging Tesla Supercharger 0.48 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 |
|---|---|---|
| 564482 | TX | Family Nurse Practitioner primary |
This provider holds licence 564482 issued in TX. 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
- 8123179314
- Enrollment ID
- I20090629000462
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 Family covers
Definition to come... NUCC Health Care Provider Taxonomy, code 363LF0000X
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 | 1003014366 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 10, 2007 |
| Last updated | Jan 26, 2012 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | RN, FNP |
| Practice address |
135 VISION PARK BLVD Shenandoah, TX 77384 (281) 404-3000 Fax (281) 290-9824 |
| Other identifiers |
206017002
· Medicaid (TX) |
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 | 1 | 4 | 3 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 1 | 8 | 3 | 3 |
Sum = 44 · next multiple of 10 = 50 · check digit = 6 · actual last digit = 6
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.