BAY CHILDREN'S SERVICES
BAY CHILDREN'S SERVICES is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003095563, based in Berkeley, CA. The organization lists 5 taxonomy classifications, with Child & Adolescent Psychiatry Physician recorded as primary.
Getting there
The practice address on file is 3030 ASHBY AVE SUITE 104, Berkeley, CA 94705. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
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 Child & Adolescent Psychiatry covers
Child & Adolescent Psychiatry is a subspecialty of psychiatry with additional skills and training in the diagnosis and treatment of developmental, behavioral, emotional, and mental disorders of childhood and adolescence. NUCC Health Care Provider Taxonomy, code 2084P0804X
All registered taxonomy codes
This provider registers 5 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 2084P0804X | Child & Adolescent Psychiatry Physician Child & Adolescent Psychiatry | — | — | primary |
| 103TC2200X | Clinical Child & Adolescent Psychologist Clinical Child & Adolescent | — | — | |
| 2084P0800X | Psychiatry Physician Psychiatry | — | — | |
| 103T00000X | Psychologist | — | — | |
| 106H00000X | Marriage & Family Therapist | — | — |
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-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1003095563 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Oct 31, 2007 |
| Last updated | Jan 29, 2026 |
| Status | Active |
| Practice address |
3030 ASHBY AVE SUITE 104 Berkeley, CA 94705 (510) 224-4221 Fax (510) 422-1442 |
| Mailing address |
3030 ASHBY AVE STE 104 Berkeley, CA 94705 |
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 | 9 | 5 | 5 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 9 | 1 | 5 | 3 |
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.