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MICHAEL STEPHEN KLEIN MD
NPI 1760463434
Anesthesiology in Tempe, AZ

Active since November 09, 2005PECOS Enrolled
2000 E SOUTHERN AVE, TEMPE, AZ 85282(480) 820-9141(480) 820-3785 Get Directions Write a Review

NPPES record last updated: July 30, 2010. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Michael Stephen Klein Md NPPES

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

MICHAEL STEPHEN KLEIN MD (NPI 1760463434) is an individual anesthesiology provider in Tempe, Arizona, licensed in Arizona (18454) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1760463434
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameMICHAEL STEPHEN KLEINCredential: MD
Location Address2000 E SOUTHERN AVETempe, AZ 85282-7510
Mailing AddressPo Box 22057Tempe, AZ 85285-2057 · (480) 820-9141 · Fax (480) 820-3785
Phone(480) 820-9141
Fax(480) 820-3785
Sole ProprietorNo
Enumeration DateNovember 9, 2005
Last NPPES UpdateJuly 30, 2010
✔ NPI 1760463434 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in AZ · 18454
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.
2000 E SOUTHERN AVE, Tempe, AZ 85282
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Other Identifiers 3

Other283911AZ · Ahcccs
Medicare UPINC32682
Medicare ID-Type UnspecifiedO5CHHN06

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Arizona, Oscar Health, Oscar Health Plan, Inc. and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Michael Stephen Klein Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Billing Reassignment

Medicare enrollment records show Michael Klein reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Anesthesia Partners Of Arizona LLC
880 mi
Anesthesiology
2221 LAKESIDE BLVD STE 600
Richardson, TX 75082
  • Reassigned Medicare billing, Arizona enrollment
  • 390 clinicians in this Medicare group
NPI 1619452901 (855) 285-2455

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

PETER MILES WATERMAN MD
Anesthesiology
2000 E SOUTHERN AVE, STE 102
TEMPE, AZ 85282
Maricopa County (480) 820-9141
BRUCE J YEE MD, PC
Anesthesiology
2000 E SOUTHERN AVE, SUITE 102
TEMPE, AZ 85282
Maricopa County (480) 831-6073
YASMIN AMIN MD
Anesthesiology
2000 E SOUTHERN AVE, 102
TEMPE, AZ 85282
Maricopa County (480) 820-9141
SOUTHWEST ANESTHESIA PLLC
Anesthesiology
2000 E SOUTHERN AVE, SUITE 106
TEMPE, AZ 85282
Maricopa County (602) 273-6770
LASER SURGERY HOLDING COMPANY, LTD
Clinic/Center (Ambulatory Surgical)
2000 E SOUTHERN AVE, 106
TEMPE, AZ 85282
Maricopa County (602) 258-7003
ANESTHESIA RESOURCES LTD
Anesthesiology
2000 E SOUTHERN AVE, SUITE 102
TEMPE, AZ 85282
Maricopa County (480) 820-9141
ROBIN LOUISE PRENTICE MD
Anesthesiology
2000 E SOUTHERN AVE, STE 102
TEMPE, AZ 85282
Maricopa County (480) 820-9141
FIRST ASSISTANTS PLLC
Registered Nurse (Registered Nurse First Assistant)
2000 E SOUTHERN AVE, SUITE 102
TEMPE, AZ 85282
Maricopa County (480) 820-9155

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 Michael Klein's NPI number?

The NPI number for Michael Klein is 1760463434. It was assigned to this individual provider in the NPPES registry on November 9, 2005.

Where is Michael Klein located?

Michael Klein practices at 2000 E Southern Ave, Tempe, AZ 85282. The listed phone number is (480) 820-9141.

What is Michael Klein's specialty?

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

Is Michael Klein enrolled in Medicare?

Yes. Michael Klein is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Michael Klein's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Klein reassigns Medicare benefits to Anesthesia Partners Of Arizona LLC (Richardson, TX). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Michael Klein's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Michael Klein accept?

Health plans from Blue Cross Blue Shield of Arizona, Oscar Health, Oscar Health Plan, Inc. and Oscar Insurance Company list Michael Klein as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Michael Klein was last updated on July 30, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years 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.