Robert Ritchie Ma
Robert Ritchie Ma is a healthcare organization registered as Mental Health Counselor in Pasadena, CA, holding Type 2 (organization) NPI 1457436305 since 2006. The authorized official on file is Robert Ritchie, Psychotherapist.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1457436305 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Robert Ritchie Ma |
| Practice address | 745 S MARENGO AVE, Pasadena, CA, 91106 |
| Phone | 6265851905 |
| Fax | 6265851905 |
| Enumeration date | 2006-10-26 |
| Last updated in NPPES | 2008-09-15 |
Authorized official
| Name | Robert Ritchie |
|---|---|
| Title | Psychotherapist |
| Phone | 6265851905 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 101YM0800X | Mental Health Counselor | Primary | MFT 16573 | CA |
Copy-ready billing details
Provider: Robert Ritchie Ma NPI: 1457436305 Taxonomy: 101YM0800X (Mental Health Counselor) Address: 745 S MARENGO AVE, Pasadena, CA, 91106
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1992784508 | Marla Pollack | Individual | Clinical Psychologist | Pasadena, CA |
| 1548312150 | David Antion | Individual | Counseling Psychologist | Pasadena, CA |
| 1487706248 | Elizabeth Shon | Individual | Psychologist | Pasadena, CA |
| 1518094432 | Michael Gutstadt | Individual | Psychologist | Pasadena, CA |
| 1518178771 | Jacqueline Miles | Individual | Psychologist | Pasadena, CA |
| 1467623710 | Alison Lewis | Individual | Clinical Social Worker | Pasadena, CA |
| 1922248319 | Fallynn Cox | Individual | Psychologist | Pasadena, CA |
| 1154647345 | Dr Elizabeth Shon, Psychological Services Inc. | Organization | Clinical Psychologist | Pasadena, CA |
Verify this record
Cross-check NPI 1457436305 against the authoritative CMS record: view Robert Ritchie Ma on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
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Where is Robert Ritchie Ma located?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2008-09-15.