Neurologist | 17+ years experience

Mark D Calayag, M.D.

200 S Manchester Ave, Suite 210, Orange, California, 92868-3217

About Mark D Calayag

Mark D Calayag is a neurologist based in Orange, California with 17 years of experience in Neurology. He completed his graduation from Albany Medical College Of Union University in 2009. He is also affiliated with hospitals like He accepts the Medicare-approved amount. Patients will not be billed for any more than the Medicare deductible and coinsurance. Active license number of Mark D Calayag is A137268 for Child Neurology in California. His current practice location is 200 S Manchester Ave, Suite 210, Orange. Patients can reach him at 714-456-6966. Mark D Calayag is M.D. in Neurology and his NPI number (Unique professional ID assigned by NPPES) is 1336373901.

Mark D Calayag specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.

Practice Information

Mark D Calayag speciality, credentials, practice address, contact phone number and fax are as below. Patients can call on the below given phone number for appointment.

Provider Name Mark D Calayag
Specialization Neurology
Credentials M.D.
Accepts Medicare Assignment Yes
Experience 17+ years
Medical School Attended Albany Medical College Of Union University
Graduation Year 2009
Gender Male
Practice Address: 200 S Manchester Ave, Suite 210
Orange, CA - 92868-3217

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 are as mentioned below.

PAC ID 3577853043
Enrollment ID I20160613001143
NPI Number1336373901
NPI Enumeration Date: 11 May, 2009
NPI Last Update On: 03 Jan, 2025

Medical Licenses:

Healthcare professionals can hold one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Mark D Calayag are as mentioned below.

License NumberSpecializationStateStatus
A137268Child Neurology CaliforniaPrimary
137268Neurological Surgery CaliforniaSecondary

Hospital Affiliation

Doctors are affiliated to many hospitals whom they worked with in the past or are presently working with. One surgeon can be affiliated to four to five hospitals at a time.
Hospital Name (CCN) StateHospital Type
(050140)Fontana, CAAcute Care Hospital

Group Practice

Group practices are practice of medicine by a group of healthcare professionals who share their premises and other resources. Following list states all the group name with which Mark D Calayag is associated with along with the number of members in that group.
Organization Name (Group PAC ID) Members
Southern California Permanente Medical Group (6002729175)7677

Mailing Address

Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned Practice address.

Mark D Calayag
200 S Manchester Ave, Suite 210
Orange, CA - 92868-3217
Phone: 714-456-6966

Book an Appointment with Mark D Calayag

To schedule an appointment, contact Mark D Calayag at 200 S Manchester Ave, Suite 210, Orange, California or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Mark D Calayag:

Dr. Mark D Calayag is a neurologist specializing in Child Neurology. He specializes in neurology with special skills in diagnosis and treatment of neurologic disorders of the neonatal period, infancy, early childhood, and adolescence.

Dr. Mark D Calayag completed his education (M.D.) from Albany Medical College Of Union University in 2009.

Dr. Mark D Calayag has approximately 17 years of experience in Child Neurology.

Yes, Dr. Mark D Calayag accepts Medicare assignment, meaning the provider participates in Medicare and accepts Medicare-approved amounts for eligible services.

Yes, Dr. Mark D Calayag is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.

Dr. Mark D Calayag practices at 200 S Manchester Ave, Suite 210, Orange, California, 92868-3217.

To schedule an appointment with Dr. Mark D Calayag, please contact the office at 714-456-6966.

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**Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 14 September, 2026.