Mark Simulis, LCSW-C
Mark Simulis, LCSW-C is a provider specialising in Clinical Social Worker in Salisbury, MD, registered under NPI 1003049545. 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 Salisbury, based on OpenStreetMap data collected Sep 2, 2026. Parking is available about 0.51 mi away.
Getting here and what is nearby
Restaurant Shah’s Halal 0.22 mi ~5 min
Restaurant Burger King 0.35 mi ~7 min
1201 Mount Hermon Road, Salisbury 21804
Mo-Sa 05:30-24:00; Su 06:30-24:00
Convenience Shore Stop 0.44 mi ~9 min
Gas station Shore Stop 0.45 mi ~9 min
Restaurant Bury Diner 0.46 mi ~10 min
Parking 0.48 mi ~10 min
Parking 0.51 mi ~11 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 |
|---|---|---|
| 13838 | MD | Clinical Social Worker primary |
This provider holds licence 13838 issued in MD. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Clinical covers
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances. NUCC Health Care Provider Taxonomy, code 1041C0700X
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 | 1003049545 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Sep 1, 2009 |
| Last updated | Oct 31, 2023 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | LCSW-C |
| Practice address |
1104 HEALTHWAY DR Salisbury, MD 21804 (410) 219-5483 Fax (410) 219-5486 |
| Mailing address |
PO BOX 1978 Salisbury, MD 21802 |
| Other identifiers |
119591300
· Medicaid (MD) |
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 | 4 | 9 | 5 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 4 | 9 | 5 | 8 |
Sum = 55 · next multiple of 10 = 60 · check digit = 5 · actual last digit = 5
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.