ORANGE COUNTY DIGESTIVE ANESTHESIA, INC.
NPI 1548920275
Anesthesiology in Santa Ana, CA

Q: What is Orange County Digestive Anesthesia, Inc.'s specialty?

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

Active since December 21, 2021

2621 S BRISTOL ST STE 202, SANTA ANA, CA 92704(657) 900-4536(657) 208-9732 Get Directions Write a Review

NPPES record last updated: September 9, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Sep 9, 2026, Dec 23, 2021 (2 updates tracked since 2021).

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About Orange County Digestive Anesthesia, Inc. NPPES

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

ORANGE COUNTY DIGESTIVE ANESTHESIA, INC. (NPI 1548920275) is a healthcare organization registered as an anesthesiology in Santa Ana, California and active in the NPI registry since December 2021. The organization lists Essam R Quraishi, Owner, as its authorized official.

NPPES Registry Identity

NPI1548920275

Entity TypeOrganization

Primary Taxonomy207L00000X

Legal Business NameORANGE COUNTY DIGESTIVE ANESTHESIA, INC.

Location Address2621 S BRISTOL ST STE 202Santa Ana, CA 92704-5718

Mailing Address2621 S Bristol St Ste 202Santa Ana, CA 92704-5718 · (657) 900-4536 · Fax (657) 208-9732

Phone(657) 900-4536

Fax(657) 208-9732

Organization SubpartNo

Authorized OfficialEssam R QuraishiOwner · (657) 900-4536

Enumeration DateDecember 21, 2021

Last NPPES UpdateSeptember 9, 20262 updates tracked since enumeration

NPPES CertifiedSeptember 9, 2026

✔ NPI 1548920275 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

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.

2621 S BRISTOL ST STE 202, Santa Ana, CA 92704

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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Orange County Digestive Anesthesia, Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 5 clinicians reassign Medicare billing to Orange County Digestive Anesthesia, Inc., which bills Medicare for the services they deliver. Of these, 1 practice at this address and 2 within 10 miles. They are listed nearest first.

Clinicians, nearest first (5)

Essam Quraishi, MD

Gastroenterology

NPI 1902952690

2621 S BRISTOL ST STE 202
Santa Ana, CA 92704

(657) 900-4536

✔ PECOS✔ Accepts MedicareSame address

Afzaal Iqbal

Pain Management

NPI 1861782674

18111 BROOKHURST ST STE 3100
Fountain Valley, CA 92708

(714) 963-7240

✔ PECOS✔ Accepts Medicare4.1 mi

Ivan Baylosis

Certified Registered Nurse Anesthetist (CRNA)

NPI 1699299073

400 N PEPPER AVE
Colton, CA 92324

(909) 580-1000

✔ Accepts Medicare39 mi

Cecilia Sung, R.N.

Certified Registered Nurse Anesthetist (CRNA)

NPI 1215377445

8990 SPRINGBROOK DR NW STE 250
Coon Rapids, MN 55433

(763) 398-0099

✔ PECOS✔ Accepts Medicare1,525 mi

Mehrdad Vaziri, CRNA

Certified Registered Nurse Anesthetist (CRNA)

NPI 1073577896

555 N DUKE ST
Lancaster, PA 17602

(717) 544-5511

✔ Accepts Medicare2,323 mi

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 Orange County Digestive Anesthesia, Inc.'s NPI number?

The NPI number for Orange County Digestive Anesthesia, Inc. is 1548920275. It was assigned to this organization in the NPPES registry on December 21, 2021.

Where is Orange County Digestive Anesthesia, Inc. located?

Orange County Digestive Anesthesia, Inc. is located at 2621 S Bristol St Ste 202, Santa Ana, CA 92704. The listed phone number is (657) 900-4536.

What is Orange County Digestive Anesthesia, Inc.'s specialty?

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

Is Orange County Digestive Anesthesia, Inc. enrolled in Medicare?

Yes. Orange County Digestive Anesthesia, Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Orange County Digestive Anesthesia, Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 5 clinicians in 3 Medicare specialties reassign their Medicare billing to Orange County Digestive Anesthesia, Inc.. A 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 the clinician's services. The largest specialties are Certified Registered Nurse Anesthetist (CRNA) (3), Gastroenterology (1) and Pain Management (1). Of these, 1 practice at this address and 2 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Orange County Digestive Anesthesia, Inc. was last updated on September 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.