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MATTHEW HONG GIE TAN MD
NPI 1518527845
Anesthesiology in Santa Ana, CA

Active since June 18, 2019PECOS EnrolledAccepts Medicare Assignment
1950 E 17TH ST STE 200, SANTA ANA, CA 92705(714) 495-4050(714) 497-1485 Get Directions Write a Review

NPPES record last updated: November 22, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Nov 22, 2024, Jul 27, 2023, Jun 18, 2019 (3 updates tracked since 2019).

About Matthew Hong Gie Tan Md NPPES

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

MATTHEW HONG GIE TAN MD (NPI 1518527845) is an individual anesthesiology provider in Santa Ana, California, licensed in California (A182435) and active in the NPI registry since June 2019. He is enrolled in Medicare PECOS and is a graduate of University Of Southern California Keck School Of Medicine (2019).

NPPES Registry Identity

NPI1518527845
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameMATTHEW HONG GIE TANCredential: MD
Location Address1950 E 17TH ST STE 200Santa Ana, CA 92705-6852
Mailing Address2601 E Chapman AveOrange, CA 92869-3206 · (714) 633-0011
Phone(714) 495-4050
Fax(714) 497-1485
Sole ProprietorNo
Medical School CMSUniversity Of Southern California Keck School Of MedicineGraduated 2019
Enumeration DateJune 18, 2019
Last NPPES UpdateNovember 22, 20243 updates tracked since enumeration
NPPES CertifiedNovember 22, 2024
✔ NPI 1518527845 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in CA · A182435
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 ListedAnesthesiology · Pain MedicineTaxonomy 207LP2900X · License 036165387 (IL)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
1950 E 17TH ST STE 200, Santa Ana, CA 92705
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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

Matthew Hong Gie Tan 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 ID4587018601
PECOS Enrollment IDI20241119003507
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 Reassignments

2

Medicare enrollment records show Matthew Tan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Orange Coast Anesthesia Inc
2.1 mi
Anesthesiology
2601 E CHAPMAN AVE
Orange, CA 92869
  • Reassigned Medicare billing, California enrollment
  • 168 clinicians in this Medicare group
NPI 1508138256 (714) 633-0011
Foothills Pain Management Clinic PC
23 mi
Interventional Pain Medicine
236 W COLLEGE ST
Covina, CA 91723
  • Reassigned Medicare billing, California enrollment
  • 8 clinicians in this Medicare group
NPI 1487885372 (626) 608-7320

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

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

CARECONNECT TRANSPORT, INC.
Non-emergency Medical Transport (VAN)
1950 E 17TH ST STE 200
SANTA ANA, CA 92705
Orange County (888) 623-4201

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 Matthew Tan's NPI number?

The NPI number for Matthew Tan is 1518527845. It was assigned to this individual provider in the NPPES registry on June 18, 2019.

Where is Matthew Tan located?

Matthew Tan practices at 1950 E 17th St Ste 200, Santa Ana, CA 92705. The listed phone number is (714) 495-4050.

What is Matthew Tan's specialty?

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

Is Matthew Tan enrolled in Medicare?

Yes. Matthew Tan 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 organizations bill Medicare for Matthew Tan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Tan reassigns Medicare benefits to 2 organizations: Orange Coast Anesthesia Inc (Orange, CA) and Foothills Pain Management Clinic PC (Covina, CA). Each 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 Matthew Tan'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 Matthew Tan was last updated on November 22, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.