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DR. MATTHEW LEWIS RITZ M.D.
NPI 1700234812
Anesthesiology in Scottsdale, AZ

Active since May 31, 2016PECOS EnrolledAccepts Medicare Assignment
80.97/100
CMS Quality Rating
13400 E SHEA BLVD, SCOTTSDALE, AZ 85259(480) 301-8000 Get Directions Write a Review

NPPES record last updated: February 23, 2026. Verified against the NPPES registry weekly; last sync: September 13, 2026.

Record update history: Jan 12, 2021, May 4, 2018 (2 updates tracked since 2018).

About Dr. Matthew Lewis Ritz M.d. NPPES

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

DR. MATTHEW LEWIS RITZ M.D. (NPI 1700234812) is an individual anesthesiology provider in Scottsdale, Arizona, licensed in Arizona (54754) and active in the NPI registry since May 2016. He is enrolled in Medicare PECOS, maintains a secondary practice location in Lakewood, and is a graduate of Other (2016).

NPPES Registry Identity

NPI1700234812
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. MATTHEW LEWIS RITZCredential: M.D.
Location Address13400 E SHEA BLVDScottsdale, AZ 85259-5452
Mailing Address13400 E Shea BlvdScottsdale, AZ 85259-5452 · (480) 301-8000
Phone(480) 301-8000
Sole ProprietorNo
Medical School CMSOtherGraduated 2016
Enumeration DateMay 31, 2016
Last NPPES UpdateFebruary 23, 20262 updates tracked since enumeration
NPPES CertifiedFebruary 23, 2026
✔ NPI 1700234812 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
Licenses✔ Licensed in AZ · 54754✔ Licensed in CO · DR.0065627
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License TL0008424
13400 E SHEA BLVD, Scottsdale, AZ 85259
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Secondary Practice Location 1

Location 111600 W 2nd PlLakewood, CO 80228-1527 · Phone (720) 321-1010 · Fax (720) 321-1001

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. Matthew Lewis Ritz 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 ID4183918899
PECOS Enrollment IDI20210831000873
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

80.97/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality65.4
Improvement Activities40
Cost100

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.

AMITKUMAR MEHTA MD
Internal Medicine (Hematology & Oncology)
13400 E SHEA BLVD
SCOTTSDALE, AZ 85259
Maricopa County (480) 301-8000
DR. DEBJIT SAHA MBBS
Internal Medicine (Critical Care Medicine)
13400 E SHEA BLVD
SCOTTSDALE, AZ 85259
Maricopa County (480) 301-8000
MICHAL REID M.D.
Internal Medicine (Pulmonary Disease)
13400 E SHEA BLVD
SCOTTSDALE, AZ 85259
Maricopa County (480) 301-8000
DR. DANIEL MARK FRENDL MD, PHD
Urology
13400 E SHEA BLVD
SCOTTSDALE, AZ 85259
Maricopa County (480) 301-8000
BRETT THEODORE TOLPA CRNA
Nurse Anesthetist, Certified Registered
13400 E SHEA BLVD
SCOTTSDALE, AZ 85259
Maricopa County (480) 301-8000
GINA MUNSON CRNA
Nurse Anesthetist, Certified Registered
13400 E SHEA BLVD
SCOTTSDALE, AZ 85259
Maricopa County (480) 301-8000
DR. CATALINA NICOLE FLORES MD
Radiology (Diagnostic Radiology)
13400 E SHEA BLVD
SCOTTSDALE, AZ 85259
Maricopa County (480) 301-8000
NICOLE WARRINGTON MD
Radiology (Diagnostic Radiology)
13400 E SHEA BLVD
SCOTTSDALE, AZ 85259
Maricopa County (480) 301-8000

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 Matthew Ritz's NPI number?

The NPI number for Matthew Ritz is 1700234812. It was assigned to this individual provider in the NPPES registry on May 31, 2016.

Where is Matthew Ritz located?

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

What is Matthew Ritz's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Matthew Ritz enrolled in Medicare?

Yes. Matthew Ritz 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 Matthew Ritz was last updated on February 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.