DR. LESTER E MERTZ M.D.
NPI 1083696751
Internal Medicine - Rheumatology in Scottsdale, AZ

Active since November 17, 2005PECOS EnrolledAccepts Medicare Assignment
13400 E SHEA BLVD, SCOTTSDALE, AZ 85259(480) 301-8000 Get Directions Write a Review

NPPES record last updated: February 17, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Sep 8, 2020, Mar 13, 2019 (2 updates tracked since 2019).

About Dr. Lester E Mertz M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. LESTER E MERTZ M.D. (NPI 1083696751) is an individual rheumatology provider in Scottsdale, Arizona, licensed in Arizona (16708) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS and is a graduate of Medical College Of Wisconsin (1981).

NPPES Registry Identity

NPI1083696751
Entity TypeIndividualMale
Primary Taxonomy207RR0500X
Provider Legal NameDR. LESTER E MERTZCredential: M.D.
Location Address13400 E SHEA BLVDScottsdale, AZ 85259-5404
Mailing Address13400 E Shea BlvdScottsdale, AZ 85259-5404 · (480) 301-8000
Sole ProprietorNo
Medical School CMSMedical College Of WisconsinGraduated 1981
Enumeration DateNovember 17, 2005
Last NPPES UpdateFebruary 17, 20262 updates tracked since enumeration
NPPES CertifiedFebruary 17, 2026
NPI 1083696751 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License Licensed in AZ · 16708
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
13400 E SHEA BLVD, Scottsdale, AZ 85259

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Lester E Mertz M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9739118803
PECOS Enrollment IDI20050809000657
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
195 services148 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
123 services123 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
92 services76 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85259 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$127.71 typical visit price
range $55.44 – $168.60
Typical copayment $31.92 (range $13.86 – $42.15)
Most-billed visit code 99204
Established Patient
$98.00 typical visit price
range $17.72 – $137.41
Typical copayment $24.50 (range $4.43 – $34.35)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine (Hematology & Oncology)
13400 E SHEA BLVD
SCOTTSDALE, AZ 85259
Internal Medicine (Critical Care Medicine)
13400 E SHEA BLVD
SCOTTSDALE, AZ 85259
Internal Medicine (Pulmonary Disease)
13400 E SHEA BLVD
SCOTTSDALE, AZ 85259
Urology
13400 E SHEA BLVD
SCOTTSDALE, AZ 85259
Nurse Anesthetist, Certified Registered
13400 E SHEA BLVD
SCOTTSDALE, AZ 85259
Nurse Anesthetist, Certified Registered
13400 E SHEA BLVD
SCOTTSDALE, AZ 85259
Radiology (Diagnostic Radiology)
13400 E SHEA BLVD
SCOTTSDALE, AZ 85259
Radiology (Diagnostic Radiology)
13400 E SHEA BLVD
SCOTTSDALE, AZ 85259

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Lester Mertz's NPI number?

The NPI number for Lester Mertz is 1083696751. It was assigned to this individual provider in the NPPES registry on November 17, 2005.

Where is Lester Mertz located?

Lester Mertz practices at 13400 E Shea Blvd, Scottsdale, AZ 85259. The listed phone number is (480) 301-8000.

What is Lester Mertz's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Lester Mertz enrolled in Medicare?

Yes. Lester Mertz is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Lester Mertz was last updated on February 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.