Caitlin Averill, CRNP
Caitlin Averill, CRNP is a Primary Care Nurse Practitioner in Reisterstown, MD, registered under NPI 1003200791.
Getting there
Here is what surrounds this office in Reisterstown, based on OpenStreetMap data collected Sep 11, 2026. Parking is available about 670 ft away. The nearest transit stop is 648 ft away, served by Main Street & Cockeys Mill Road Opposite Northbound. A pharmacy sits 0.32 mi from the entrance (NatureCare Pharmacy), which helps if you leave with a prescription.
Getting here and what is nearby
Parking 421 ft ~2 min
Parking 548 ft ~3 min
Transit Main Street & Cockeys Mill Road Opposite Northbound 624 ft ~3 min
Transit Main Street & Cockeys Mill Road Southbound 647 ft ~3 min
Transit Main Street & Cockeys Mill Road Opposite Northbound 648 ft ~3 min
Parking 670 ft ~3 min
Restaurant Dunkin' 0.29 mi ~6 min
Restaurant Harriman House 0.30 mi ~7 min
340 Main Street, Reisterstown 21136
Restaurant Maria's 0.31 mi ~7 min
31 Main Street, Reisterstown 21136
Mo-Su 11:00-22:30
Pharmacy NatureCare Pharmacy 0.32 mi ~7 min
40 Main Street, Reisterstown 21136
Grocery Weis 0.34 mi ~7 min
10 Village Center Road, Reisterstown 21136
Gas station Shell 0.35 mi ~7 min
Convenience Shell 0.36 mi ~8 min
30 Main Street, Reisterstown 21136
Gas station Royal Farms 0.40 mi ~8 min
Convenience Royal Farms 0.41 mi ~9 min
15 Hanover Pike, Reisterstown 21136
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 |
|---|---|---|
| R196399 | MD | Primary Care Nurse Practitioner primary |
This provider holds licence R196399 issued in MD. 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
- 6406176783
- Enrollment ID
- I20150528000829
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 Primary Care covers
Definition to come... NUCC Health Care Provider Taxonomy, code 363LP2300X
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 | 1003200791 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 20, 2015 |
| Last updated | Mar 20, 2015 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | CRNP |
| Practice address |
114 BUSINESS CENTER DR Reisterstown, MD 21136 (410) 833-2772 Fax (410) 526-4897 |
| Other names |
Caitlin Averill Doing Business As |
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 | 2 | 0 | 0 | 7 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 0 | 0 | 7 | 9 |
Sum = 49 · next multiple of 10 = 50 · check digit = 1 · actual last digit = 1
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.