THOMAS K. RITCHER
NPI 1215431978
Psychiatry & Neurology - Psychiatry in San Diego, CA
NPI Status: Active since March 19, 2018
Contact Information
3853 ROSECRANS ST
SAN DIEGO, CA
ZIP 92110
Phone: (619) 692-8200
- Individual
- Male
- Psychiatry & Neurology
- Psychiatry
About THOMAS RITCHER
This page provides the complete NPI Profile along with additional information for Thomas Ritcher, a provider established in San Diego, California with a medical specialization in Psychiatry & Neurology, focusing in psychiatry . The healthcare provider is registered in the NPI registry with number 1215431978 assigned on March 2018. The practitioner's primary taxonomy code is 2084P0800X with license number 20010 (CA). The provider is registered as an individual and his NPI record was last updated June 2025.
- NPI
- 1215431978
- Provider Name
- THOMAS K. RITCHER
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 3853 ROSECRANS ST SAN DIEGO, CA 92110
- Location Phone
- (619) 692-8200
- Mailing Address
- 3069 ALAMO DR # 1016 VACAVILLE, CA 95687
- Is Sole Proprietor?
- No
- Enumeration Date
- 03-19-2018
- Last Update Date
- 06-04-2025
- Code Navigator
A psychiatrist like Thomas Ritcher are primary mental health physicians diagnose and treat mental illnesses through psychotherapy, psychoanalysis, hospitalization and medication. Psychiatrist help patients find solutions through changes in their behavioral patterns, explorations of experiences, group and family therapy.
Location Map
Specialty - Primary Taxonomy
The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.
- Classification
Psychiatry & Neurology Psychiatry
- Taxonomy Code
- 2084P0800X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 20010
- License State
- CA
- Taxonomy Description
- A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
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NPI Validation Check Digit Calculation
The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.
| Start with the original NPI number, the last digit is the check digit and is not used in the calculation. | |||||||||
| 1 | 2 | 1 | 5 | 4 | 3 | 1 | 9 | 7 | 8 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 2 | 2 | 5 | 8 | 3 | 2 | 9 | 14 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
| 2 + 2 + 2 + 5 + 8 + 3 + 2 + 9 + 1 + 4 + 24 = 62 | |||||||||
| Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
| 70 - 62 = 8 | 8 | ||||||||
The NPI number 1215431978 is valid because the calculated check digit 8 using the Luhn validation algorithm matches the last digit of the original NPI number.
Other Providers at the Same Location
The following 20 providers are registered at the same or nearby location.
| NPI | Name / Type | Taxonomy | Address |
|---|---|---|---|
| 1437246592 | SAN DIEGO CHOICES, INC Organization | Community Based Residential Treatment Facility, Mental Illness | 3853 ROSECRANS ST SAN DIEGO, CA 92110 (619) 692-8225 |
| 1841376332 | BRYNN L. ELLIS Individual | Day Training/Habilitation Specialist | 3853 ROSECRANS ST SAN DIEGO, CA 92110 (619) 692-8224 |
| 1023194412 | JOHN BAIRD ARCHIBALD LVLN Individual | Licensed Vocational Nurse | 3853 ROSECRANS ST SAN DIEGO, CA 92110 (619) 692-8225 |
| 1336226976 | ABIGAIL ALABA CNA Individual | Nurse's Aide | 3853 ROSECRANS ST SAN DIEGO, CA 92110 (619) 692-8224 |
| 1598842130 | RENATO CAPISTRANO BALINO Individual | Day Training/Habilitation Specialist | 3853 ROSECRANS ST SAN DIEGO, CA 92110 (619) 692-8224 |
| 1306923958 | MARK LUIS HOPKINS Individual | Specialist | 3853 ROSECRANS ST SAN DIEGO, CA 92110 (619) 692-8224 |
| 1659458206 | STEPHANIE L. BURTON LPT Individual | Licensed Psychiatric Technician | 3853 ROSECRANS ST SAN DIEGO, CA 92110 (619) 692-8224 |
| 1386721017 | DEANNA OSBAUGH LVN Individual | Licensed Vocational Nurse | 3853 ROSECRANS ST SAN DIEGO, CA 92110 (619) 692-8242 |
| 1831276575 | KATHLYN ROSE AGUILUZ RN Individual | Registered Nurse | 3853 ROSECRANS ST SAN DIEGO, CA 92110 (619) 692-8225 |
| 1770660425 | ALBERT EVERETTE SCHAFER MSW Individual | Social Worker | 3853 ROSECRANS ST SAN DIEGO, CA 92110 (619) 692-8216 |
| 1659458305 | TARA STEWART Individual | Day Training/Habilitation Specialist | 3853 ROSECRANS ST SAN DIEGO, CA 92110 (619) 692-8215 |
| 1508943267 | MARCIA C RHMMEL Individual | Day Training/Habilitation Specialist | 3853 ROSECRANS ST SAN DIEGO, CA 92110 (619) 692-8224 |
| 1548347347 | ABDESSAMAD DANAMI Individual | Day Training/Habilitation Specialist | 3853 ROSECRANS ST SAN DIEGO, CA 92110 (619) 692-8224 |
| 1780761494 | MICHELLE PATRICIA RUIZ Individual | Day Training/Habilitation Specialist | 3853 ROSECRANS ST SAN DIEGO, CA 92110 (619) 692-8225 |
| 1225115959 | RUSSELL MILLER Individual | Day Training/Habilitation Specialist | 3853 ROSECRANS ST SAN DIEGO, CA 92110 (619) 692-8225 |
| 1790862324 | CHRISTOPHER GLENN JAMES JR. Individual | Day Training/Habilitation Specialist | 3853 ROSECRANS ST SAN DIEGO, CA 92110 (619) 692-8224 |
| 1437236080 | LINDA ARCELIA MC DONALD RN Individual | Registered Nurse | 3853 ROSECRANS ST SAN DIEGO, CA 92110 (619) 692-8225 |
| 1699852244 | CRAIG GAMBLE LVN Individual | Licensed Vocational Nurse | 3853 ROSECRANS ST SAN DIEGO, CA 92110 (619) 692-8225 |
| 1356428999 | ALICIA LEYVA RN Individual | Registered Nurse | 3853 ROSECRANS ST SAN DIEGO, CA 92110 (619) 692-8232 |
| 1730266388 | CECILIA KILGORE Individual | Day Training/Habilitation Specialist | 3853 ROSECRANS ST SAN DIEGO, CA 92110 (619) 692-8225 |
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1215431978, enumerated in the NPI registry as an "individual" on March 19, 2018
The provider is located at 3853 Rosecrans St San Diego, Ca 92110 and the phone number is (619) 692-8200
The provider's speciality is Psychiatry & Neurology with taxonomy code 2084P0800X with a focus in Psychiatry
This NPI record was last updated on March 19, 2018. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
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