Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Michael M Long MD PC

Q: What is the NPI number for Michael M Long MD PC?

The NPI for Michael M Long MD PC is 1356548507, a Type 2 (organization) record in the CMS NPPES registry.

Hematology & Oncology Physician in Mesa, AZ · enumerated 2007 · authorized official Julie Casillas, Administrator.

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

National Provider Identifier

1356548507

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Registry record

Entity type Organization (Type 2)

Legal business name Michael M Long MD PC

Practice address 6424 E Broadway Rd, 104, Mesa, AZ, 85206

Phone (480) 985-5331

Fax (480) 924-6919

Enumeration date Jun 29, 2007

Last updated in NPPES Apr 9, 2008

Taxonomy & classification

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Julie Casillas

Title Administrator

Phone (480) 969-4634

Other identifiers

Identifier	Type	State	Issuer
28583402	Medicaid	AZ	-

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

Who is the authorized official for Michael M Long MD PC?

NPPES lists Julie Casillas (Administrator) as the authorized official for this organization.

What is the NPI number for Michael M Long MD PC?

The NPI for Michael M Long MD PC is 1356548507, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

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Sanjeev Gopal Hematology & Oncology Physician · Mesa, AZ NPI 1003821430 Banner Baywood Surgery Center, Lp Ambulatory Surgical Clinic/Center · Mesa, AZ NPI 1740450311 Kay Scala Adult Health Nurse Practitioner · Mesa, AZ NPI 1093947392 Sun Electronic Brachytherapy Inc Hematology & Oncology Physician · Mesa, AZ NPI 1710322946 Elevate Anesthesia Services, Inc. Anesthesiology Physician · Mesa, AZ NPI 1518338326 Choice Spine and Pain, LLC Ambulatory Surgical Clinic/Center · Mesa, AZ NPI 1730625526 Saguaro Surgery Center LLC Ambulatory Surgical Clinic/Center · Mesa, AZ NPI 1740995612

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-09.