Neil Chatterjee, MD
Neil Chatterjee, MD is a General Practice Physician in Encino, CA, registered under NPI 1265554695. This provider registers 7 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 15720 VENTURA BLVD STE 602A, Encino, CA 91436. 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 |
|---|---|---|
| A66747 | CA | Geriatric Medicine (Family Medicine)… |
| A66747 | CA | Clinical Informatics Physician |
| A66747 | CA | Public Health & General Preventive… |
| A66747 | CA | Psychosomatic Medicine Physician |
| A66747 | CA | General Practice Physician primary |
| A66747 | CA | Family Medicine Physician |
| A66747 | CA | Addiction Medicine (Family Medicine)… |
This provider holds licence A66747 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - General Practice
- PAC ID
- 6709984438
- Enrollment ID
- I20070604000769
Medicare enrolment is recorded as approved under the provider type Practitioner - General Practice. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What General Practice covers
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. NUCC Health Care Provider Taxonomy, code 208D00000X
All registered taxonomy codes
This provider registers 7 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207QG0300X | Geriatric Medicine (Family Medicine) Physician Geriatric Medicine | A66747 | CA | |
| 2083C0008X | Clinical Informatics Physician Clinical Informatics | A66747 | CA | |
| 2083P0901X | Public Health & General Preventive Medicine Physician Public Health & General Preventive Medicine | A66747 | CA | |
| 2084P0015X | Psychosomatic Medicine Physician Psychosomatic Medicine | A66747 | CA | |
| 208D00000X | General Practice Physician | A66747 | CA | primary |
| 207Q00000X | Family Medicine Physician | A66747 | CA | |
| 207QA0401X | Addiction Medicine (Family Medicine) Physician Addiction Medicine | A66747 | CA |
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 | 1265554695 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 5, 2007 |
| Last updated | Aug 8, 2022 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | MD |
| Practice address |
15720 VENTURA BLVD STE 602A Encino, CA 91436 (818) 386-8816 |
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 | 2 | 6 | 5 | 5 | 5 | 4 | 6 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 2 | 3 | 5 | 1 | 5 | 8 | 6 | 9 |
Sum = 65 · next multiple of 10 = 70 · check digit = 5 · actual last digit = 5
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.