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KAREN HSU MD
NPI 1659733459
Obstetrics & Gynecology in Orange, CA

Active since March 22, 2016PECOS EnrolledAccepts Medicare Assignment
2501 E CHAPMAN AVE STE 201-202, ORANGE, CA 92869(714) 282-1892 Get Directions Write a Review

NPPES record last updated: December 1, 2020. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Dec 1, 2020, Mar 22, 2016 (2 updates tracked since 2016).

About Karen Hsu Md NPPES

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

KAREN HSU MD (NPI 1659733459) is an individual obstetrics & gynecology provider in Orange, California, licensed in California (A170534) and active in the NPI registry since March 2016. She is enrolled in Medicare PECOS, maintains a secondary practice location in New York, and is a graduate of Other (2016).

NPPES Registry Identity

NPI1659733459
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameKAREN HSUCredential: MD
Location Address2501 E CHAPMAN AVE STE 201-202Orange, CA 92869-3204
Mailing Address2501 E Chapman Ave Ste 201-202Orange, CA 92869-3204 · (714) 282-1892 · Fax (714) 282-9682
Phone(714) 282-1892
Sole ProprietorNo
Medical School CMSOtherGraduated 2016
Enumeration DateMarch 22, 2016
Last NPPES UpdateDecember 1, 20202 updates tracked since enumeration
NPPES CertifiedDecember 1, 2020
✔ NPI 1659733459 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in CA · A170534
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
2501 E CHAPMAN AVE STE 201-202, Orange, CA 92869
Open in Google Maps ↗

Secondary Practice Location 1

Location 1350 E 17th St, 9BH26New York, NY 10003-3805 · Phone (212) 420-4548 · Fax (212) 420-2980

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

Karen Hsu 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 ID5597001743
PECOS Enrollment IDI20201208002766
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.

Areas of Expertise CMS Part B claims

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.

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
15 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92869 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

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

GELAREH RENEE NIKPOUR-HERAVI M.D.
Obstetrics & Gynecology
2501 E CHAPMAN AVE STE 201-202
ORANGE, CA 92869
Orange County (714) 282-1892

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 Karen Hsu's NPI number?

The NPI number for Karen Hsu is 1659733459. It was assigned to this individual provider in the NPPES registry on March 22, 2016.

Where is Karen Hsu located?

Karen Hsu practices at 2501 E Chapman Ave Ste 201-202, Orange, CA 92869. The listed phone number is (714) 282-1892.

What is Karen Hsu's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Karen Hsu enrolled in Medicare?

Yes. Karen Hsu 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.

When was this NPI record last updated?

The NPPES record for Karen Hsu was last updated on December 1, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.