1. Home
  2. Directory
  3. Colorado
  4. Denver
  5. Anesthesiology
  6. NPI Profile

MICHAEL O'CALLAGHAN MD
NPI 1033256318
Anesthesiology in Denver, CO

Active since January 30, 2007PECOS EnrolledAccepts Medicare Assignment
455 SHERMAN ST, STE 510, DENVER, CO 80203(303) 377-6825(303) 780-0787 Get Directions Write a Review

NPPES record last updated: August 12, 2013. Verified against the NPPES registry weekly; last sync: October 04, 2026.

About Michael O'callaghan Md NPPES

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

MICHAEL O'CALLAGHAN MD (NPI 1033256318) is an individual anesthesiology provider in Denver, Colorado, licensed in Colorado (52481) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS and is a graduate of University Of Kansas School Of Med (kc/wich/sal) (2006).

NPPES Registry Identity

NPI1033256318
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameMICHAEL O'CALLAGHANCredential: MD
Location Address455 SHERMAN ST, STE 510Denver, CO 80203-4400
Mailing Address455 Sherman St, Ste 510Denver, CO 80203-4400 · (303) 377-6825 · Fax (303) 780-0787
Phone(303) 377-6825
Fax(303) 780-0787
Sole ProprietorNo
Medical School CMSUniversity Of Kansas School Of Med (kc/wich/sal)Graduated 2006
Enumeration DateJanuary 30, 2007
Last NPPES UpdateAugust 12, 2013
✔ NPI 1033256318 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in CO · 52481
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.
455 SHERMAN ST, Denver, CO 80203
Open in Google Maps ↗

Other Identifiers 1

Medicaid10471723CO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include 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 and accepts Medicare assignment

Michael O'callaghan 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 ID5991949281
PECOS Enrollment IDI20130927000108
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.

GREGORY HOPKINS CRNA
Nurse Anesthetist, Certified Registered
455 SHERMAN ST, STE 5100
DENVER, CO 80203
Denver County (303) 377-6825
STACY E CASON CRNA
Nurse Anesthetist, Certified Registered
455 SHERMAN ST, STE. 510
DENVER, CO 80203
Denver County (303) 377-6825
ALEX CARRILLO MD
Anesthesiology
455 SHERMAN ST, STE 510
DENVER, CO 80203
Denver County (303) 377-6825
KARL P FRITZ MD
Anesthesiology (Pediatric Anesthesiology)
455 SHERMAN ST, STE 510
DENVER, CO 80203
Denver County (303) 377-6825
CHILDREN'S ANESTHESIA, P.C.
Anesthesiology
455 SHERMAN ST, SUITE 510
DENVER, CO 80203
Denver County (303) 336-8304
RAFAEL S CAMPANINI M.D.
Anesthesiology (Pediatric Anesthesiology)
455 SHERMAN ST, STE 510
DENVER, CO 80203
Denver County (303) 744-8644
DAVID DALGLEISH CRNA
Anesthesiology
455 SHERMAN ST, STE 510
DENVER, CO 80203
Denver County (303) 336-8304
BRUCE A LOWRY MD
Anesthesiology
455 SHERMAN ST, STE 510
DENVER, CO 80203
Denver County (303) 744-8644

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 O'callaghan's NPI number?

The NPI number for Michael O'callaghan is 1033256318. It was assigned to this individual provider in the NPPES registry on January 30, 2007.

Where is Michael O'callaghan located?

Michael O'callaghan practices at 455 Sherman St Ste 510, Denver, CO 80203. The listed phone number is (303) 377-6825.

What is Michael O'callaghan's specialty?

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

Is Michael O'callaghan enrolled in Medicare?

Yes. Michael O'callaghan 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.

What insurance does Michael O'callaghan accept?

Health plans from Oscar Insurance Company list Michael O'callaghan 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 O'callaghan was last updated on August 12, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.