1. Home
  2. Directory
  3. Arizona
  4. Phoenix
  5. Anesthesiology
  6. NPI Profile

STEPHEN A BASS M.D.
NPI 1164560686
Anesthesiology in Phoenix, AZ

Active since February 05, 2007PECOS Enrolled
300 W CLARENDON AVE, SUITE 142, PHOENIX, AZ 85013(602) 234-1803(602) 234-3748 Get Directions Write a Review

NPPES record last updated: April 3, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 3, 2023, Mar 3, 2016, Feb 24, 2016 (3 updates tracked since 2016).

About Stephen A Bass M.d. NPPES

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

STEPHEN A BASS M.D. (NPI 1164560686) is an individual anesthesiology provider in Phoenix, Arizona, licensed in Arizona (41904) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1164560686
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameSTEPHEN A BASSCredential: M.D.
Location Address300 W CLARENDON AVE, SUITE 142Phoenix, AZ 85013-3449
Mailing AddressPo Box 36680Phoenix, AZ 85067-6680 · (602) 234-1991 · Fax (602) 234-3748
Phone(602) 234-1803
Fax(602) 234-3748
Sole ProprietorNo
Enumeration DateFebruary 5, 2007
Last NPPES UpdateApril 3, 20233 updates tracked since enumeration
NPPES CertifiedApril 3, 2023
✔ NPI 1164560686 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
Licenses✔ Licensed in AZ · 41904✔ Licensed in OK · 24598
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.
300 W CLARENDON AVE, Phoenix, AZ 85013
Open in Google Maps ↗

Accepted Insurance

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

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Stephen A Bass M.d. 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.

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.

RENEE O'SULLIVAN NNP
Nurse Practitioner (Neonatal)
300 W CLARENDON AVE, 375
PHOENIX, AZ 85013
Maricopa County (602) 277-4161
HARRY J CAVANAGH JR. M.D.
Anesthesiology
300 W CLARENDON AVE, SUITE 142
PHOENIX, AZ 85013
Maricopa County (602) 234-1803
ELLEN P TAPPERO NNP
Nurse Practitioner (Neonatal)
300 W CLARENDON AVE, 375
PHOENIX, AZ 85013
Maricopa County (602) 277-4161
SARVESH K NIGAM MD
Pediatrics
300 W CLARENDON AVE, 375
PHOENIX, AZ 85013
Maricopa County (602) 277-4161
TRACEY GILLISPIE NNP
Nurse Practitioner (Neonatal)
300 W CLARENDON AVE, 375
PHOENIX, AZ 85013
Maricopa County (602) 277-4161
DINA R TULENKO NNP
Nurse Practitioner (Neonatal)
300 W CLARENDON AVE, 375
PHOENIX, AZ 85013
Maricopa County (602) 277-4161
PATRICIA SPARRAZZA NNP
Nurse Practitioner (Neonatal)
300 W CLARENDON AVE, 375
PHOENIX, AZ 85013
Maricopa County (602) 277-4161
JOAN GATZ NNP
Nurse Practitioner (Neonatal)
300 W CLARENDON AVE, 375
PHOENIX, AZ 85013
Maricopa County (602) 277-4161

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 Stephen Bass's NPI number?

The NPI number for Stephen Bass is 1164560686. It was assigned to this individual provider in the NPPES registry on February 5, 2007.

Where is Stephen Bass located?

Stephen Bass practices at 300 W Clarendon Ave Suite 142, Phoenix, AZ 85013. The listed phone number is (602) 234-1803.

What is Stephen Bass's specialty?

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

Is Stephen Bass enrolled in Medicare?

Yes. Stephen Bass is registered in the Medicare PECOS enrollment system.

What insurance does Stephen Bass accept?

Health plans from Blue Cross Blue Shield of Arizona, Oscar Health Plan, Inc. and Oscar Insurance Company list Stephen Bass 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 Stephen Bass was last updated on April 3, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.