Ha Cao
Ha Cao is a Marriage & Family Therapist in Oakland, CA, registered under NPI 1003006933.
Getting there
Here is what surrounds this office in Oakland, based on OpenStreetMap data collected Aug 28, 2026. Parking is available about 298 ft away. The nearest transit stop is 380 ft away, served by East 15th Street & 3rd Avenue. A pharmacy sits 0.29 mi from the entrance (Mỹ Lan Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.47 mi away.
Getting here and what is nearby
Transit International Boulevard & 2nd Avenue 156 ft ~1 min
Transit International Boulevard & 2nd Avenue 228 ft ~1 min
Parking 197 ft ~1 min
Parking 263 ft ~1 min
Parking 298 ft ~2 min
Transit East 15th Street & 3rd Avenue 380 ft ~2 min
Hotel Econo Lodge 424 ft ~2 min
122 East 12th Street
Restaurant Tacos Mi Rancho 548 ft ~3 min
1434 1st Avenue, Oakland 94606
Mo-Su 09:30-24:00
Restaurant Sushi Place 713 ft ~3 min
1603 2nd Avenue, Oakland 94606
Su-Th 11:30-21:00; Fr-Sa 11:30-21:30
Restaurant Portal 768 ft ~3 min
Gas station Shell 996 ft ~4 min
Grocery Lucky 1,009 ft ~4 min
Convenience 7-Eleven 0.20 mi ~4 min
Convenience Jax Liquor 0.23 mi ~5 min
Coffee Cafe Da Huong 0.25 mi ~6 min
605 East 12th Street
Coffee Dove’s Donut—The Vegan Cafe 0.29 mi ~6 min
Convenience Carriage Trade Liquors 0.29 mi ~6 min
Pharmacy Pacific Pharmacy 0.29 mi ~6 min
Pharmacy Mỹ Lan Pharmacy 0.29 mi ~6 min
Coffee Eden Plaza Cafe 0.47 mi ~10 min
Mo-Fr 07:00-15:00
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
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 Marriage & Family Therapist covers
A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups. NUCC Health Care Provider Taxonomy, code 106H00000X
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 | 1003006933 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 26, 2007 |
| Last updated | Jul 26, 2007 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Practice address |
255 INTERNATIONAL BLVD Oakland, CA 94606 (510) 835-2777 |
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 | 0 | 6 | 9 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 0 | 3 | 9 | 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.