John Legrand Hadlock , BCO
Specialist • Mesa, AZ
1450 S Dobson Rd, #a206
Mesa, AZ 852024712
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
Practice Location & Contact Primary Location
1450 S Dobson Rd
#a206
Mesa, AZ 852024712
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Specialist: NPPES taxonomy is a reported classification, not proof of board certification.
NPI first issued
2007
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Compared with the same specialty in Mesa and Arizona
37 active clinicians are listed under Specialist with a practice address in Mesa, AZ (752 in Arizona).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Mesa
0% of these 37 clinicians have the CMS telehealth indicator.
8.1% of these 37 clinicians are listed by CMS as accepting Medicare assignment.
Sources: CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 174400000X
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
Additional State Medicaid & Healthcare Payer Identifiers
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Nurse Practitioner - Adult Health
Registered Nurse, Master of Science in Nursing, ANPBC
Dermatology - Procedural Dermatology
Doctor of Medicine (M.D.)
Physician Assistant - Medical
Physician Assistant (Certified)
Emergency Medicine
Doctor of Medicine (M.D.)
Internal Medicine - Nephrology
Doctor of Medicine (M.D.)
Orthopaedic Surgery - Adult Reconstructive Orthopaedic Surgery
Doctor of Medicine (M.D.)
Career & Practice History
NPI enumerated January 12, 2007.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Specialists in Mesa
- Dr. Andre Matthews, MD
- Dr. Gerald Yospur, MD
- Dr. Jay Cook, MD
- Dr. Lloyd Brenden, MD
- Dr. James Colleen, MD
- Dr. Geoffrey Leber, MD
Mailing Address
1450 S Dobson Rd, #a206
Mesa, AZ 852024712
Phone: 4809625841