Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Preema Mehta Buch, MD

Ophthalmology Physician in Castro Valley, CA · enumerated 2014 · practices at Eye Specialties Medical Group Inc..

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1366852865

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Registry record

Entity type Individual (Type 1)

Name Preema Mehta Buch

Credential MD

Sex Female

Practice address 20046 Lake Chabot Rd, Castro Valley, CA, 94546

Phone (510) 881-8823

Fax (510) 881-2134

Enumeration date May 6, 2014

Last updated in NPPES Nov 21, 2025

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License A168154 (CA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1366852865 active?

Yes, as of the latest NPPES snapshot, NPI 1366852865 is active (record last updated 2025-11-21).

How do I verify Preema Buch's NPI record?

Cross-check NPI 1366852865 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-21.