Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

MACMASTER PSYCHIATRIC SERVICES A PROFESSIONAL NURSING CORPORATION
NPI 1174456883
Psychiatry & Neurology - Geriatric Psychiatry in Mountain House, CA

Q: What is Macmaster Psychiatric Services A Professional Nursing Corporation's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Geriatric Psychiatry, with taxonomy code 2084P0805X.

Active since June 04, 2026

1510 S BARKER ST, MOUNTAIN HOUSE, CA 95391(559) 776-8864 Get Directions Write a Review

NPPES record added: June 4, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Macmaster Psychiatric Services A Professional Nursing Corporation NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MACMASTER PSYCHIATRIC SERVICES A PROFESSIONAL NURSING CORPORATION (NPI 1174456883) is a healthcare organization registered as a geriatric psychiatry in Mountain House, California and active in the NPI registry since June 2026. The organization lists Jacob Martin Macmaster, Owner, as its authorized official.

NPPES Registry Identity

NPI1174456883

Entity TypeOrganization

Primary Taxonomy2084P0805X

Legal Business NameMACMASTER PSYCHIATRIC SERVICES A PROFESSIONAL NURSING CORPORATION

Location Address1510 S BARKER STMountain House, CA 95391-1473

Mailing Address1510 S Barker StMountain House, CA 95391-1473 · (559) 776-8864

Phone(559) 776-8864

Organization SubpartNo

Authorized OfficialJacob Martin MacmasterOwner · (559) 776-8864

Enumeration DateJune 4, 2026

NPPES CertifiedJune 4, 2026

✔ NPI 1174456883 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · Geriatric PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0805X

Definition

Geriatric Psychiatry is a subspecialty with psychiatric expertise in prevention, evaluation, diagnosis and treatment of mental and emotional disorders in the elderly, and improvement of psychiatric care for healthy and ill elderly patients.

1510 S BARKER ST, Mountain House, CA 95391

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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Macmaster Psychiatric Services A Professional Nursing Corporation's NPI number?

The NPI number for Macmaster Psychiatric Services A Professional Nursing Corporation is 1174456883. It was assigned to this organization in the NPPES registry on June 4, 2026.

Where is Macmaster Psychiatric Services A Professional Nursing Corporation located?

Macmaster Psychiatric Services A Professional Nursing Corporation is located at 1510 S Barker St, Mountain House, CA 95391. The listed phone number is (559) 776-8864.

What is Macmaster Psychiatric Services A Professional Nursing Corporation's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Geriatric Psychiatry, with taxonomy code 2084P0805X.

When was this NPI record last updated?

The NPPES record for Macmaster Psychiatric Services A Professional Nursing Corporation was last updated on June 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.