STEPHEN GIACOMAZZI MD
NPI 1699301556
Anesthesiology in Pismo Beach, CA

Q: What is Stephen Giacomazzi's NPI number?

The NPI number for Stephen Giacomazzi is 1699301556. It was assigned to this individual provider in the NPPES registry on March 22, 2020.

Q: What is Stephen Giacomazzi's specialty?

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

Active since March 22, 2020PECOS EnrolledAccepts Medicare Assignment

221 PORTERVILLE ST, PISMO BEACH, CA 93449(559) 816-1711 Get Directions Write a Review

NPPES record last updated: January 29, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About Stephen Giacomazzi Md NPPES

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

STEPHEN GIACOMAZZI MD (NPI 1699301556) is an individual anesthesiology provider in Pismo Beach, California, licensed in California (2120) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS and is a graduate of Other (2020).

NPPES Registry Identity

NPI1699301556

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameSTEPHEN GIACOMAZZICredential: MD

Location Address221 PORTERVILLE STPismo Beach, CA 93449-2375

Mailing Address4077 Fifth Ave # Mer35San Diego, CA 92103-2105

Phone(559) 816-1711

Sole ProprietorNo

Medical School CMSOtherGraduated 2020

Enumeration DateMarch 22, 2020

Last NPPES UpdateJanuary 29, 2025

NPPES CertifiedJanuary 29, 2025

✔ NPI 1699301556 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in CA · 2120

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

221 PORTERVILLE ST, Pismo Beach, CA 93449

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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

Stephen Giacomazzi 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 ID7719475961

PECOS Enrollment IDI20251021002215

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 Stephen Giacomazzi reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Associated Anesthesiologists Of The Central Coast

10 mi

Anesthesiology

1010 MURRAY ST
San Luis Obispo, CA 93405

Reassigned Medicare billing, California enrollment
42 clinicians in this Medicare group

NPI 1619963576 (805) 928-1731

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

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 Giacomazzi's NPI number?

The NPI number for Stephen Giacomazzi is 1699301556. It was assigned to this individual provider in the NPPES registry on March 22, 2020.

Where is Stephen Giacomazzi located?

Stephen Giacomazzi practices at 221 Porterville St, Pismo Beach, CA 93449. The listed phone number is (559) 816-1711.

What is Stephen Giacomazzi's specialty?

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

Is Stephen Giacomazzi enrolled in Medicare?

Yes. Stephen Giacomazzi 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 Stephen Giacomazzi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Giacomazzi reassigns Medicare benefits to Associated Anesthesiologists Of The Central Coast (San Luis Obispo, CA). 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 Stephen Giacomazzi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Stephen Giacomazzi was last updated on January 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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.