DR. MARK ROBERT STEWARD PH.D. NPI 1821152828

NPI Information

NPI: 1821152828
Provider Name: DR. MARK ROBERT STEWARD, PH.D.
Classification: Psychologist - 103TA0700X
Specialization: Adult Development & Aging
Entity Type: Individual
Address: 53 LANGLEY RD
SUITE 340D
NEWTON CENTRE, MA
ZIP 02459
Phone: (617) 484-7604

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NPI Details

DR. Mark Robert Steward, PH.D. is an adult development and aging psychologist in Newton Centre, MA. The provider is a psychologist who specializes in geropsychology, which applies the knowledge and methods of psychology to understanding and helping older persons and their families to maintain well-being, overcome problems and achieve maximum potential during later life. Professional geropsychology appreciates the wide diversity among older adults, the complex ethical issues that can arise in geriatric practice and the importance of interdisciplinary models of care. DR. Mark Robert Steward, PH.D. NPI is 1821152828. The provider is registered as an individual entity type.

The NPPES NPI record indicates the provider is a male.

The provider's business location address is:

53 LANGLEY RD
SUITE 340D
NEWTON CENTRE, MA
ZIP 02459-913
Phone: (617) 484-7604

The enumeration date for this NPI number is 12/21/2006 and was last updated on 9/11/2025.

Taxonomy Codes

The NPI record includes the healthcare provider taxonomy classification, state license number and state of licensure. The following information regarding the scope of practice of this provider is available:

No.	Taxonomy Code	Taxonomy Clasification	Taxonomy Specialization	License Number	License State	Primary
1	103TA0700X	Psychologist	Adult Development & Aging	4784	MASSACHUSETTS	Yes
2	103TC0700X	Psychologist	Clinical	4784	MASSACHUSETTS	No
3	103TC2200X	Psychologist	Clinical Child & Adolescent	4784	MASSACHUSETTS	No
4	103T00000X	Psychologist		4784	MASSACHUSETTS	No
5	103TF0000X	Psychologist	Family	4784	MASSACHUSETTS	No
6	103TP2701X	Psychologist	Group Psychotherapy	4784	MASSACHUSETTS	No
7	103TS0200X	Psychologist	School	4784	MASSACHUSETTS	No

Other Identifiers

The following information regarding additional identifiers associated to this NPI record includes the other identifier number, identifier type, identifier state and issuer.

No.	Other Provider Identifier	Other Provider Identifier Type	Other Provider Identifier State	Other Provider Identifier Issuer
1	W04555	OTHER	MASSACHUSETTS	BLUE CROSS BLUE SHIELD

What is NPI?

NPI stands for National Provider Identifier. The NPI is a 10-digit identification number that is completely unique. The NPI number by itself does not contain any identifiable information such as a provider’s speciality or location. The NPI is assigned to individuals or organizacions for their lifespan and it is independent of key provider information type updates like a change of practices, location or speciality.

This page was last updated on: 11/21/2025

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