DAVID A SACK MD A PROFESSIONAL MEDICAL CORPORATION
DAVID A SACK MD A PROFESSIONAL MEDICAL CORPORATION is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1104377613, based in Malibu, CA. The organization lists 2 taxonomy classifications, with Addiction Psychiatry Physician recorded as primary.
Getting there
The practice address on file is 20786 COOL OAK WAY, Malibu, CA 90265. 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
| Licence | State | Specialty |
|---|---|---|
| 20A13416 | CA | Addiction Psychiatry Physician primary |
This provider holds licence 20A13416 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 Addiction Psychiatry covers
Addiction Psychiatry is a subspecialty of psychiatry that focuses on evaluation and treatment of individuals with alcohol, drug, or other substance-related disorders, and of individuals with dual diagnosis of substance-related and other psychiatric disorders. NUCC Health Care Provider Taxonomy, code 2084P0802X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 2084P0802X | Addiction Psychiatry Physician Addiction Psychiatry | 20A13416 | CA | primary |
| 2084P0800X | Psychiatry Physician Psychiatry | — | — |
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 | 1104377613 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Oct 19, 2016 |
| Last updated | Jan 24, 2017 |
| Status | Active |
| Practice address |
20786 COOL OAK WAY Malibu, CA 90265 (424) 235-2337 Fax (310) 943-0438 |
| Mailing address |
PO BOX 671387 Dallas, TX 75267 |
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 | 1 | 0 | 4 | 3 | 7 | 7 | 6 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 1 | 0 | 4 | 6 | 7 | 5 | 6 | 2 |
Sum = 57 · next multiple of 10 = 60 · 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.