DR. CHANG-HWA MARY CHEN M.D.
NPI 1245287622
Anesthesiology in Duarte, CA

Q: What is Chang-hwa Mary Chen's NPI number?

The NPI number for Chang-hwa Mary Chen is 1245287622. It was assigned to this individual provider in the NPPES registry on May 30, 2006.

Q: What is Chang-hwa Mary Chen's specialty?

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

Active since May 30, 2006PECOS EnrolledAccepts Medicare Assignment

1500 DUARTE RD, DUARTE, CA 91010(626) 256-4673 Get Directions Write a Review

NPPES record last updated: September 26, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Dr. Chang-hwa Mary Chen M.d. NPPES

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

DR. CHANG-HWA MARY CHEN M.D. (NPI 1245287622) is an individual anesthesiology provider in Duarte, California, licensed in California (A85504) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS and is a graduate of Other (2002).

NPPES Registry Identity

NPI1245287622

Entity TypeIndividualFemale

Primary Taxonomy207L00000X

Provider Legal NameDR. CHANG-HWA MARY CHENCredential: M.D.

Location Address1500 DUARTE RDDuarte, CA 91010-3012

Mailing AddressPo Box 512185Los Angeles, CA 90051-0185

Phone(626) 256-4673

Sole ProprietorYes

Medical School CMSOtherGraduated 2002

Enumeration DateMay 30, 2006

Last NPPES UpdateSeptember 26, 2023

NPPES CertifiedJune 21, 2023

✔ NPI 1245287622 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in CA · A85504

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.

1500 DUARTE RD, Duarte, CA 91010

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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

Dr. Chang-hwa Mary Chen M.d. 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 ID9638174790

PECOS Enrollment IDI20071220000245

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

Medicare enrollment records show Chang-hwa Mary Chen reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

City Of Hope Medical Foundation

0.2 mi

Hematology & Oncology

1500 DUARTE RD
Duarte, CA 91010

Reassigned Medicare billing, California enrollment
1,335 clinicians in this Medicare group

NPI 1871886366 (626) 256-4673

Southern California Permanente Medical Group

4.4 mi

Health Maintenance Organization

1011 BALDWIN PARK BLVD
Baldwin Park, CA 91706

Reassigned Medicare billing, California enrollment
13,921 clinicians in this Medicare group

NPI 1770515280 (626) 851-1011

Bayside Anesthesia Medical Group

30 mi

Pain Medicine

2121 SANTA MONICA BLVD
Santa Monica, CA 90404

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

NPI 1184668469 (310) 576-7267

Torrance Anesthesia Medical Group Inc.

30 mi

Anesthesiology

3330 LOMITA BLVD
Torrance, CA 90505

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

NPI 1902824642 (310) 325-9110

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

Areas of Expertise CMS Part B claims 10

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Insertion of artery tube for blood sampling or infusion through skin 36620

This procedure involves placing a small tube into an artery, usually in the wrist or elbow, to collect blood samples or administer medication. It's done under local anesthesia and is a common, safe practice.

31 services31 patients

Anesthesia for procedure for total knee joint replacement 01402

Anesthesia for a total knee joint replacement numbs your body to eliminate pain during surgery. This could be general anesthesia where you're unconscious, or regional anesthesia where only the leg is numb. It's administered by a specialist, ensuring safety and comfort.

30 services30 patients

Anesthesia for other procedure on upper abdomen 00790

Anesthesia for an upper abdomen procedure involves using medications to help you feel no pain during the operation. It can be general, where you're unconscious, or regional, where just the abdomen area is numbed. It ensures comfort and stillness, aiding a successful procedure.

18 services18 patients

Anesthesia for extensive surgery on spine 00670

Anesthesia for extensive spine surgery involves medication to block pain and make you unconscious during the procedure. It ensures comfort and prevents movement. Two types may be used: general (you sleep) or regional (numbs a large area). The choice depends on the surgery specifics and your health.

17 services17 patients

Anesthesia for total hip replacement 01214

Anesthesia for total hip replacement is a medical service where medication is given to eliminate pain during surgery. Two types are commonly used: general anesthesia, making you unconscious, or spinal anesthesia, numbing the lower body. The choice depends on your health and your doctor's recommendation.

16 services16 patients

Continuous infusion of anesthetic agent and/or steroid into thigh nerve (femoral nerve) through catheter 64448

This procedure involves the slow, steady delivery of a medication into your thigh nerve. An anesthetic agent or steroid is used to manage pain or inflammation. It's a safe, effective way to deliver medication directly to the area that needs it.

16 services16 patients

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.

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