JOHN Z WANG M.D., PH.D.
NPI 1285747931
Internal Medicine in West Covina, CA

Q: What is John Wang's NPI number?

The NPI number for John Wang is 1285747931. It was assigned to this individual provider in the NPPES registry on August 16, 2006. The provider is also known as Zheng Wang M.D., Ph.D..

Q: What is John Wang'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 John Wang was last updated on July 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.

Active since August 16, 2006PECOS EnrolledAccepts Medicare Assignment

1115 S SUNSET AVE STE 200, WEST COVINA, CA 91790(626) 732-8390(626) 732-8399 Get Directions Write a Review

NPPES record last updated: July 11, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About John Z Wang M.d., Ph.d. NPPES

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

JOHN Z WANG M.D., PH.D. (NPI 1285747931) is an individual internal medicine provider in West Covina, California, licensed in California (A67229) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1989).

NPPES Registry Identity

NPI1285747931

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameJOHN Z WANGCredential: M.D., PH.D.

Location Address1115 S SUNSET AVE STE 200West Covina, CA 91790-3940

Mailing Address1041 W Badillo St Ste 104Covina, CA 91722-4194 · (626) 732-4168 · Fax (626) 732-8501

Phone(626) 732-8390

Fax(626) 732-8399

Sole ProprietorNo

Medical School CMSOtherGraduated 1989

Enumeration DateAugust 16, 2006

Last NPPES UpdateJuly 11, 2025

NPPES CertifiedJuly 11, 2025

✔ NPI 1285747931 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 · A67229

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.

1115 S SUNSET AVE STE 200, West Covina, CA 91790

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Other Names 1

Former Name (1)Zheng Wang M.d., Ph.d.

Other Identifiers 1

Medicaid00A672290CA

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

John Z Wang M.d., Ph.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 ID4385671528

PECOS Enrollment IDI20050726001260

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 2

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

199 services64 patients

Telephone medical discussion with physician, 5-10 minutes 99441

A telephone medical discussion with a physician is a brief, 5-10 minute call where you can discuss your health concerns. It's a convenient way to receive medical advice without needing to visit a clinic. It's important to prepare questions in advance to make the most of this time.

35 services19 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91790 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

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

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

4 suppliers12 claims23 services$6.04 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 9

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

FU-CHENG CHUANG M.D.

Internal Medicine