John Schreiner, CRNA
John Schreiner, CRNA is a Certified Registered Nurse Anesthetist in Fort Worth, TX, registered under NPI 1003111303.
Getting there
Here is what surrounds this office in Fort Worth, based on OpenStreetMap data collected Sep 6, 2026. Parking is available about 691 ft away. There is EV charging 0.46 mi from the office (Volta) — useful if you are driving in from out of town. The nearest transit stop is 0.40 mi away, served by Hulen & Barwick - SW Loop 820.
Getting here and what is nearby
Parking 46 ft ~1 min
Parking 447 ft ~2 min
Grocery Sprouts Farmers Market 428 ft ~2 min
4650 Southwest Loop 820, Fort Worth 76109
Mo-Su 07:00-22:00
Restaurant Thai Select Restaurant 459 ft ~2 min
4630 SW Loop 820
Mo-Th 11:00-21:30; Fr,Sa 11:00-22:00; Su 11:00-21:00
Parking 691 ft ~3 min
4100 South Hulen Street
Restaurant The Original Pancake House 924 ft ~4 min
Restaurant Olive Garden 924 ft ~4 min
4730 Southwest Loop 820, Fort Worth 76109
Convenience 7-Eleven 962 ft ~4 min
Gas station Shell 977 ft ~4 min
4600 South Hulen Street, Fort Worth 76109
Transit Hulen & SW Loop 820 - Barwick 0.39 mi ~8 min
Transit Hulen & Barwick - SW Loop 820 0.40 mi ~9 min
EV charging Volta 0.46 mi ~10 min
Hotel TownePlace Suites Fort Worth Southwest/TCU Area 0.49 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 |
|---|---|---|
| 733683 | TX | Certified Registered Nurse Anesthetist primary |
This provider holds licence 733683 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 - Certified Registered Nurse Anesthetist (crna)
- PAC ID
- 9739367442
- Enrollment ID
- I20110629000036
Medicare enrolment is recorded as approved under the provider type Practitioner - Certified Registered Nurse Anesthetist (crna). 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 Nurse Anesthetist, Certified Registered covers
(1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in management and resuscitation of critical patients in intensive care, coronary care, and emergency situations. Nurse anesthetists are certified following successful completion of credentials and state licensure review and a national examination directed by the Council on Certification of Nurse Anesthetists. (2) A registered nurse who is qualified by special training to administer anesthesia in collaboration with a physician or dentist and who can assist in the care of patients who are in critical condition. NUCC Health Care Provider Taxonomy, code 367500000X
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 | 1003111303 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jan 18, 2011 |
| Last updated | Jun 27, 2018 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | CRNA |
| Practice address |
4200 S HULEN ST STE 425 Fort Worth, TX 76109 (817) 731-2875 |
| Mailing address |
PO BOX 840853 Dallas, TX 75284 |
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 | 1 | 1 | 1 | 3 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 1 | 2 | 3 | 0 |
Sum = 37 · next multiple of 10 = 40 · check digit = 3 · actual last digit = 3
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.