Tiffany Blackham, HBCE, CD
Tiffany Blackham, HBCE, CD is a provider specialising in Doula in Costa Mesa, CA, registered under NPI 1003708033. 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 Costa Mesa, based on OpenStreetMap data collected Oct 19, 2026. Parking is available about 0.33 mi away. There is EV charging 1,014 ft from the office (Rove) — useful if you are driving in from out of town. The nearest transit stop is 1,020 ft away, served by Harbor-Merrimac. If you arrive early, there is a coffee shop 0.26 mi away.
Getting here and what is nearby
Parking 189 ft ~1 min
Parking 309 ft ~2 min
Convenience 7-Eleven 591 ft ~3 min
2683 Harbor Boulevard, Costa Mesa 92626
Restaurant Tacos Madre 730 ft ~3 min
2629 Harbor Boulevard, Costa Mesa 92626
Tu-Sa 10:00-22:00; Mo-Su 10:00-21:00
Transit Harbor-Peterson 804 ft ~4 min
Restaurant Broken Yolk 799 ft ~4 min
Mo-Fr 07:00-14:00; Sa,Su 07:00-15:00
Grocery Vons 808 ft ~4 min
2701 Harbor Boulevard, Costa Mesa 92626
Mo-Su 06:00-23:00
EV charging Tesla Supercharger 898 ft ~4 min
Restaurant Firehouse Subs 881 ft ~4 min
09:30-22:00
Transit Harbor-Adams 945 ft ~4 min
Coffee Better Buzz Coffee 975 ft ~4 min
Convenience ReCharge Market by Gelson's 957 ft ~4 min
2666 Harbor Boulevard, Costa Mesa 92627
Mo-Su 06:00-21:00
Transit Harbor-Merrimac 1,020 ft ~4 min
Coffee Onn Coffee 1,011 ft ~4 min
EV charging Rove 1,014 ft ~4 min
Coffee The Caffeine Club 0.26 mi ~6 min
Parking 0.33 mi ~7 min
2700 Peterson Place, Costa Mesa 92626
Gas station Sinclair 0.46 mi ~10 min
2502 Harbor Boulevard, Costa Mesa 92626
Convenience Sinclair 0.47 mi ~10 min
2502 Harbor Boulevard, Costa Mesa 92626
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 |
|---|---|---|
| 4570 | CA | Doula primary |
This provider holds licence 4570 issued in CA. 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 Doula covers
Doulas work in a variety of settings and have been trained to provide physical, emotional, and informational support to a mother before, during, and just after birth and/or provide emotional and practical support to a mother during the postpartum period. NUCC Health Care Provider Taxonomy, code 374J00000X
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 | 1003708033 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 15, 2025 |
| Last updated | Jul 15, 2025 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | HBCE, CD |
| Practice address |
1525 MESA VERDE DR E STE 210 Costa Mesa, CA 92626 (702) 205-6073 |
| Mailing address |
5751 S PEARL ST Las Vegas, NV 89120 |
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 | 7 | 0 | 8 | 0 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 5 | 0 | 7 | 0 | 6 |
Sum = 47 · next multiple of 10 = 50 · 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.