Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Radiology Professionals, P.A.

Diagnostic Radiology Physician in Portland, ME · enumerated 2019 · authorized official David Langdon, MD, President.

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

National Provider Identifier

1780149260

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Registry record

Entity type Organization (Type 2)

Legal business name Radiology Professionals, P.A.

Practice address 144 State Street, Portland, ME, 04101

Phone (207) 879-3000

Enumeration date Feb 8, 2019

Last updated in NPPES Feb 8, 2019

Taxonomy & classification

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians Primary

2085R0204X Vascular & Interventional Radiology Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name David Langdon

Title MD, President

Phone (207) 784-2554

Other identifiers

Identifier	Type	State	Issuer
1912984089	Medicaid	ME	-

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

Where is Radiology Professionals, P.A. located?

The practice location on file with NPPES is in Portland, ME.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2019-02-08. Verify at npiregistry.cms.hhs.gov.

Providers at this address

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Diane Stoller Surgery Physician · Portland, ME NPI 1134207160 Sarah Foulkes Registered Dietitian · Portland, ME NPI 1487871364

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-02-08.