Mark Helling, DDS
Mark Helling, DDS is a provider specialising in General Practice Dentistry in Tempe, AZ, registered under NPI 1003030834.
Getting there
Here is what surrounds this office in Tempe, based on OpenStreetMap data collected Aug 31, 2026. Parking is available about 995 ft away at Dorsey & Apache Park and Ride. The nearest transit stop is 0.41 mi away, served by Hayden Ln & McClintock Dr. If you arrive early, there is a coffee shop 0.50 mi away.
Getting here and what is nearby
Parking 300 ft ~2 min
Parking 359 ft ~2 min
Parking Dorsey & Apache Park and Ride 995 ft ~4 min
Convenience Pride Travel Center 0.25 mi ~5 min
Restaurant Filibertos 0.25 mi ~5 min
Transit 0.34 mi ~7 min
Transit 0.34 mi ~7 min
Convenience 7-Eleven 0.35 mi ~7 min
Restaurant Four Peaks Brewing Company 0.36 mi ~8 min
1340 East 8th Street, Tempe 85281
Mo-Th 11:00-22:00; Fr,Sa 11:00-23:00; Su 11:00-22:00
Coffee Infusion Coffee & Tea Crafters 0.38 mi ~8 min
1300 East 8th Street, Tempe 85281
Mo-Su 08:00-18:00
Coffee Ziggi's Coffee 0.39 mi ~8 min
Transit Hayden Ln & McClintock Dr 0.41 mi ~9 min
Hotel Hotel Tempest - Trademark Collection by Wyndham 0.49 mi ~10 min
Restaurant Junn All You Can Eat Sushi 0.49 mi ~10 min
Coffee The Human Bean 0.50 mi ~10 min
1765 East University Drive, Tempe 85281
Mo-Su 05:00-21:00
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 |
|---|---|---|
| AZ2281 | AZ | General Practice Dentistry primary |
This provider holds licence AZ2281 issued in AZ. 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 General Practice covers
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs. NUCC Health Care Provider Taxonomy, code 1223G0001X
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 | 1003030834 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 12, 2007 |
| Last updated | Jul 8, 2007 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | DDS |
| Practice address |
1519 E APACHE BLVD Tempe, AZ 85281 (480) 968-8711 |
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 | 3 | 0 | 8 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 3 | 0 | 8 | 6 |
Sum = 46 · next multiple of 10 = 50 · check digit = 4 · actual last digit = 4
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.