Roberta Worrall-feldhausen, APRN
Roberta Worrall-feldhausen, APRN is a Psychiatric/Mental Health Clinical Nurse Specialist in Silver Spring, MD, registered under NPI 1841222973.
Getting there
The practice address on file is 3110 GRACEFIELD RD, Silver Spring, MD 20904. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| R119532 | MD | Psychiatric/Mental Health Clinical Nurse… primary |
This provider holds licence R119532 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 - Certified Clinical Nurse Specialist (cns)
- PAC ID
- 9032175153
- Enrollment ID
- I20041209000471
Medicare enrolment is recorded as approved under the provider type Practitioner - Certified Clinical Nurse Specialist (cns). 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 Psychiatric/Mental Health covers
Definition to come... NUCC Health Care Provider Taxonomy, code 364SP0808X
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 | 1841222973 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 7, 2006 |
| Last updated | Feb 26, 2026 |
| Status | Active |
| Sole proprietor | No |
| Credential | APRN |
| Practice address |
3110 GRACEFIELD RD Silver Spring, MD 20904 (301) 572-8340 Fax (301) 572-8403 |
| Mailing address |
5730 EXECUTIVE DR STE 230 Catonsville, MD 21228 |
| Other identifiers |
0943SE-643880-01
· Other 8302101 · Other 0041 · Other 0943ER-643880-01 · Other 64388001 · Other 9680-0019 · Other |
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 | 8 | 4 | 1 | 2 | 2 | 2 | 9 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 8 | 1 | 4 | 2 | 4 | 9 | 5 |
Sum = 67 · next multiple of 10 = 70 · 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.