DIANA W ZHAO MD
NPI 1295199768
Internal Medicine in Newport Beach, CA

Q: What is Diana Zhao's NPI number?

The NPI number for Diana Zhao is 1295199768. It was assigned to this individual provider in the NPPES registry on April 11, 2016.

Q: What is Diana Zhao's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Diana Zhao was last updated on February 14, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.

Active since April 11, 2016PECOS EnrolledAccepts Medicare Assignment

520 SUPERIOR AVE STE 150, NEWPORT BEACH, CA 92663(949) 764-8065(949) 642-7703 Get Directions Write a Review

NPPES record last updated: February 14, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 27, 2023, Sep 30, 2019, Jul 26, 2019 (3 updates tracked since 2019).

On this page

About Diana W Zhao Md NPPES

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

DIANA W ZHAO MD (NPI 1295199768) is an individual internal medicine provider in Newport Beach, California, licensed in California (A150485) and active in the NPI registry since April 2016. She is enrolled in Medicare PECOS and is a graduate of Medical College Of Wisconsin (2016).

NPPES Registry Identity

NPI1295199768

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NameDIANA W ZHAOCredential: MD

Location Address520 SUPERIOR AVE STE 150Newport Beach, CA 92663-3642

Mailing Address520 Superior Ave Ste 150Newport Beach, CA 92663-3642 · (949) 764-8065 · Fax (949) 642-7703

Phone(949) 764-8065

Fax(949) 642-7703

Sole ProprietorNo

Medical School CMSMedical College Of WisconsinGraduated 2016

Enumeration DateApril 11, 2016

Last NPPES UpdateFebruary 14, 20243 updates tracked since enumeration

NPPES CertifiedFebruary 14, 2024

✔ NPI 1295199768 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in CA · A150485

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

520 SUPERIOR AVE STE 150, Newport Beach, CA 92663

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Other Identifiers 1

MedicaidDZ3232267556CA

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

Diana W Zhao 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 ID648503748

PECOS Enrollment IDI20190604003015

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 Diana Zhao reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

David Ahn, M.D., Inc

Same address

Endocrinology, Diabetes & Metabolism

520 SUPERIOR AVE STE 150
Newport Beach, CA 92663

Reassigned Medicare billing, California enrollment
Medicare enrollment name: David Ahn MD Inc
5 clinicians in this Medicare group

NPI 1114501848 (949) 764-7366

Southern California Permanente Medical Group

17 mi

Health Maintenance Organization

441 N LAKEVIEW AVE
Anaheim, CA 92807

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

NPI 1952333460 (714) 279-4000

County Of Los Angeles

19 mi

Clinic/Center

1333 CHESTNUT AVE
Long Beach, CA 90813

Reassigned Medicare billing, California enrollment
1,939 clinicians in this Medicare group

NPI 1568483766 (562) 599-8709

Superior Hospitalist Medical Group Inc

27 mi

Hospitalist

1680 E 120TH ST
Los Angeles, CA 90059

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

NPI 1780047712 (330) 493-4443

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92663 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

$109.96 typical visit price

range $20.84 – $153.61

Typical copayment $27.49 (range $5.21 – $38.40)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Insulin for administration through dme (i.e., insulin pump) per 50 units J1817

Treatment-Injections and Infusions (nononcologic) · category RI000N

1 supplier14 claims840 services$4.38 avg. paid by Medicare

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553

DME-Other DME · category DE017N

5 suppliers34 claims34 services$195.71 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 7

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

DAVID AHN, M.D., INC

Internal Medicine (Endocrinology, Diabetes & Metabolism)