Majormedical LLC Portable Diagnostics

Majormedical LLC Portable Diagnostics is a healthcare organization registered as Family Medicine Physician in Silver Spring, MD, holding Type 2 (organization) NPI 1639497308 since 2010. The authorized official on file is Mark Major, Owner/Ceo.

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NPI	1639497308
Entity type	Organization (Type 2)
Legal business name	Majormedical LLC Portable Diagnostics
Practice address	8241 GEORGIA AVE, SUITE 102, Silver Spring, MD, 20910
Phone	3015851833
Fax	2402353898
Enumeration date	2010-05-05
Last updated in NPPES	2010-05-05

Authorized official

Name	Mark Major
Title	Owner/Ceo
Phone	3015851833

Taxonomy & classification

Taxonomy code	Specialty	Primary	License	State
2085U0001X	Diagnostic Ultrasound Physician	Secondary	D0064592	MD
2085U0001X	Diagnostic Ultrasound Physician	Secondary	MD036021	DC
207Q00000X	Family Medicine Physician	Primary	D0064592	MD

Copy-ready billing details

Provider: Majormedical LLC Portable Diagnostics
NPI: 1639497308
Taxonomy: 207Q00000X (Family Medicine Physician)
Address: 8241 GEORGIA AVE, SUITE 102, Silver Spring, MD, 20910

Providers at this address

NPI	Name	Type	Specialty	Location
1376611665	Integrated Surgical Associates, Pllc	Organization	Specialist	Silver Spring, MD
1619297066	Michelle German	Individual	Physician Assistant	Silver Spring, MD
1447532023	Ddp Medical Services, LLC	Organization	Sleep Disorder Diagnostic Clinic/Center	Silver Spring, MD
1891045084	Syed Ahmed P C	Organization	Sleep Medicine (Psychiatry & Neurology) Physician	Silver Spring, MD

Verify this record

Cross-check NPI 1639497308 against the authoritative CMS record: view Majormedical LLC Portable Diagnostics on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Where is Majormedical LLC Portable Diagnostics located?

The practice location on file with NPPES is in Silver Spring, MD.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2010-05-05. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2010-05-05.