Mark A Welch Do, Inc
Psychiatry Clinic
10737 Laurel St, Suite 230, Rancho Cucamonga
California, 91730-3837
909-989-5556 909-989-5558
Maps & DirectionsMark A Welch Do, Inc is a Psychiatry Clinic in Rancho Cucamonga, California. It is located at 10737 Laurel St, Suite 230, Rancho Cucamonga, CA and its contact number is 909-989-5556. The authorized person for Mark A Welch Do, Inc is Dr. Mark Arnold Welch
who is Doctor of the clinic and his/her contact number is 951-966-5802. The primary license number for Mark A Welch Do, Inc is 2OA8950 (Psychiatry) in California.
Mark A Welch Do, Inc Clinic 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.
Complete Clinic Profile:
Mark A Welch Do, Inc Clinic speciality, address, contact phone number and fax are as below.
Patients can call on the below given phone number for appointments.
| Name: | Mark A Welch Do, Inc |
| Specialization: | Psychiatry |
| Clinic Address: | 10737 Laurel St, Suite 230, Rancho Cucamonga,
California, 91730-3837 |
| Phone: | 909-989-5556 |
| Fax: | 909-989-5558 |
Authorized/Official Person Profile:
Officially authorized person to contact for any management issues or complaints for this clinic are as below. Person's position and contact details are also mentioned below.
| Name: | Dr. Mark Arnold Welch |
| Position: | Doctor |
| Contact Number: | 951-966-5802 |
Professional Identification Codes:
NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS).
NPI details for Mark A Welch Do, Inc clinic are as mentioned below.
| NPI Number: | 1770031312 |
| NPI Enumeration Date: | 12 Sep, 2016 |
| NPI Last Update On: | 12 Sep, 2016 |
Medical Licenses:
Organizations can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Mark A Welch Do, Inc are as mentioned below.
| Specialization | License Number | State | Status | |
| Psychiatry | 2OA8950 | California | Primary | |
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
| Address: | Mark A Welch Do, Inc
10737 Laurel St, Suite 230
Rancho Cucamonga, California |
| Zip: | 91730-3837 |
| Phone Number: | 909-989-5556 |
| Fax Number: | 909-989-5558 |
Patients can reach Mark A Welch Do, Inc at
10737 Laurel St, Suite 230, Rancho Cucamonga, California or can
call to book an appointment on 909-989-5556.
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Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 13 October, 2025.