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WILLIAM O'CONNOR MD
NPI 1780271791
Anesthesiology in Oklahoma City, OK

Active since December 23, 2020PECOS EnrolledAccepts Medicare Assignment
920 SL YOUNG BLVD # 1140, OKLAHOMA CITY, OK 73104(405) 271-4351 Get Directions Write a Review

NPPES record last updated: April 2, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 2, 2026, Dec 23, 2020 (2 updates tracked since 2020).

About William O'connor Md NPPES

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

WILLIAM O'CONNOR MD (NPI 1780271791) is an individual anesthesiology provider in Oklahoma City, Oklahoma, licensed in Oklahoma (39600) and active in the NPI registry since December 2020. He is enrolled in Medicare PECOS and is a graduate of Other (2026).

NPPES Registry Identity

NPI1780271791
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameWILLIAM O'CONNORCredential: MD
Location Address920 SL YOUNG BLVD # 1140Oklahoma City, OK 73104-5036
Mailing Address920 Sl Young Blvd # 1140Oklahoma City, OK 73104-5036 · (405) 271-4351
Phone(405) 271-4351
Sole ProprietorNo
Medical School CMSOtherGraduated 2026
Enumeration DateDecember 23, 2020
Last NPPES UpdateApril 2, 20262 updates tracked since enumeration
NPPES CertifiedApril 2, 2026
✔ NPI 1780271791 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in OK · 39600
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.
920 SL YOUNG BLVD # 1140, Oklahoma City, OK 73104
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Oklahoma.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

William O'connor Md 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 ID8921564469
PECOS Enrollment IDI20260726000044
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 William O'connor reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Associated Anesthesiologists, Inc.
98 mi
Anesthesiology
6839 S CANTON AVE
Tulsa, OK 74136
  • Reassigned Medicare billing, Oklahoma enrollment
  • 133 clinicians in this Medicare group
NPI 1891733598 (918) 494-0612

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 9

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

SANJEV KALYANARAMAN
Anesthesiology
920 SL YOUNG BLVD # 1140
OKLAHOMA CITY, OK 73104
Oklahoma County (405) 271-4351
TARA ADAMS GERHARDT CRNA
Nurse Anesthetist, Certified Registered
920 SL YOUNG BLVD # 1140
OKLAHOMA CITY, OK 73104
Oklahoma County (405) 271-4351
DR. NAISHAL PATEL MD
Anesthesiology
920 SL YOUNG BLVD # 1140
OKLAHOMA CITY, OK 73104
Oklahoma County (405) 271-4351
BENJAMIN LEE BLANCHARD MD
Anesthesiology
920 SL YOUNG BLVD # 1140
OKLAHOMA CITY, OK 73104
Oklahoma County (405) 271-4351
RICHARD SPANGLER MD
Anesthesiology
920 SL YOUNG BLVD # 1140
OKLAHOMA CITY, OK 73104
Oklahoma County (405) 271-4351
WILLIAM ANDREW SATTERWHITE
Anesthesiology
920 SL YOUNG BLVD # 1140
OKLAHOMA CITY, OK 73104
Oklahoma County (405) 271-4351
LAUREL GIESEKE
Student in an Organized Health Care Education/Training Program
920 SL YOUNG BLVD # 1140
OKLAHOMA CITY, OK 73104
Oklahoma County (405) 271-4351
DR. GEN FITZGERALD
Student in an Organized Health Care Education/Training Program
920 SL YOUNG BLVD # 1140
OKLAHOMA CITY, OK 73104
Oklahoma County (405) 271-4351

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 William O'connor's NPI number?

The NPI number for William O'connor is 1780271791. It was assigned to this individual provider in the NPPES registry on December 23, 2020.

Where is William O'connor located?

William O'connor practices at 920 Sl Young Blvd # 1140, Oklahoma City, OK 73104. The listed phone number is (405) 271-4351.

What is William O'connor's specialty?

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

Is William O'connor enrolled in Medicare?

Yes. William O'connor 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.

Which organization bills Medicare for William O'connor's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William O'connor reassigns Medicare benefits to Associated Anesthesiologists, Inc. (Tulsa, OK). 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 William O'connor's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William O'connor accept?

Health plans from Blue Cross and Blue Shield of Oklahoma list William O'connor 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 William O'connor was last updated on April 2, 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.