Mark Taylor, MSW, LMHP-S, CSAC,
Mark Taylor, MSW, LMHP-S, CSAC, is an Addiction (Substance Use Disorder) Counselor in Richmond, VA, registered under NPI 1003665621. 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 Richmond, based on OpenStreetMap data collected Oct 13, 2026. Parking is available about 0.29 mi away. The nearest transit stop is 659 ft away, served by Nine Mile & 30th. A pharmacy sits 0.25 mi from the entrance (Harness Health Pharmacy - Richmond Community Hospital), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.46 mi away.
Getting here and what is nearby
Transit 29th & Y 470 ft ~2 min
Transit Nine Mile & 29th 604 ft ~3 min
Transit Nine Mile & 30th 659 ft ~3 min
Restaurant Inner City Blues 792 ft ~4 min
3015 Nine Mile Road, Richmond 23223
Tu-Th 13:00-20:00; Fr-Sa 13:00-23:00
Convenience The Marketplace 923 ft ~4 min
Parking 0.24 mi ~5 min
Parking 0.24 mi ~5 min
Pharmacy Harness Health Pharmacy - Richmond Community Hospital 0.25 mi ~6 min
1510 North 28th Street, Richmond 23223
Mo-Fr 09:00-17:00
Parking 0.29 mi ~6 min
Grocery The Market at 25th 0.44 mi ~9 min
1330 North 25th Street, Richmond 23223
07:00-22:00
Coffee Peaberry Coffeehouse 0.46 mi ~10 min
1301 North 32nd Street, Richmond 23223
Mo-Fr 06:00-16:00; Sa-Su 07:00-17:00
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 |
|---|---|---|
| 0906015135 | VA | Addiction (Substance Use Disorder)… primary |
This provider holds licence 0906015135 issued in VA. 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 Addiction (Substance Use Disorder) covers
Definition to come... NUCC Health Care Provider Taxonomy, code 101YA0400X
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 | 1003665621 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 15, 2024 |
| Last updated | May 15, 2024 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | MSW, LMHP-S, CSAC, |
| Practice address |
1731 N 28TH ST Richmond, VA 23223 (804) 301-8400 |
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 | 6 | 6 | 5 | 6 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 3 | 6 | 1 | 6 | 4 |
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.