WENGANG ZHANG M.D.
NPI 1063451243
Internal Medicine in Pittsburg, CA

Q: What is Wengang Zhang's NPI number?

The NPI number for Wengang Zhang is 1063451243. It was assigned to this individual provider in the NPPES registry on June 5, 2006.

Q: What is Wengang Zhang'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 Wengang Zhang was last updated on August 1, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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 June 05, 2006PECOS EnrolledAccepts Medicare Assignment

2220 GLADSTONE DR, SUITE 3, PITTSBURG, CA 94565(925) 432-3318(925) 432-4590 Get Directions Write a Review

NPPES record last updated: August 1, 2008. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Wengang Zhang M.d. NPPES

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

WENGANG ZHANG M.D. (NPI 1063451243) is an individual internal medicine provider in Pittsburg, California, licensed in California (A65147) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1982).

NPPES Registry Identity

NPI1063451243

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameWENGANG ZHANGCredential: M.D.

Location Address2220 GLADSTONE DR, SUITE 3Pittsburg, CA 94565-5123

Mailing Address2220 Gladstone Dr, Suite 3Pittsburg, CA 94565-5123 · (925) 432-3318 · Fax (925) 432-4590

Phone(925) 432-3318

Fax(925) 432-4590

Sole ProprietorNo

Medical School CMSOtherGraduated 1982

Enumeration DateJune 5, 2006

Last NPPES UpdateAugust 1, 2008

✔ NPI 1063451243 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 · A65147

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.

2220 GLADSTONE DR, Pittsburg, CA 94565

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Other Identifiers 3

Medicare UPING96340

Medicare PIN00A651473CA

Medicaid00A651470CA

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

Wengang Zhang 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 ID6800853649

PECOS Enrollment IDI20041214000475

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 Reassignment

Medicare enrollment records show Wengang Zhang reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Pittsburg-Antioch Medical Group A Professional Corporation

Same address

Internal Medicine

2220 GLADSTONE DR, SUITE 3
Pittsburg, CA 94565

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

NPI 1619922911 (924) 432-3318

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 13

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.

Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more 99308

A follow-up nursing facility visit per day is a daily check-up service provided by healthcare professionals. It lasts around 15 minutes and involves assessing your health status, monitoring your recovery progress, and addressing any concerns you may have about your health or treatment.

731 services64 patients

Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309

A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.

440 services71 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

363 services194 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

344 services97 patients

Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 99490

Chronic care management services involve a healthcare professional directing clinical staff in managing your chronic conditions. This includes the first 20 minutes per month of services like medication management, care coordination, and health monitoring to help improve your health and quality of life.

78 services25 patients

Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more 99306

An initial nursing facility visit is your first meeting with your healthcare team at a nursing facility. Lasting typically 45 minutes, this appointment involves a comprehensive health assessment and the creation of your personalized care plan. It's a crucial step to ensure your health and well-being.

69 services54 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

63 services56 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

53 services53 patients

Administration of influenza virus vaccine G0008

The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.

40 services40 patients

Influenza vaccine, inactivated 90653

The Influenza vaccine, inactivated, is a shot given to protect against the flu. It contains killed virus particles that help your body build immunity to the flu. It's recommended annually to keep your protection up-to-date. It's safe for ages 6 months and up.

35 services35 patients

Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit G0438

An annual wellness visit is a yearly appointment with your doctor to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's an opportunity to discuss your health status and goals and get a plan tailored for you.

31 services31 patients

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.

20 services20 patients

Telephone medical discussion with physician, 11-20 minutes 99442

This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.

20 services16 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94565 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

$153.83 typical visit price

range $69.00 – $202.35

Typical copayment $38.45 (range $17.25 – $50.58)

Most-billed visit code 99204

Established Patient

$119.48 typical visit price

range $23.44 – $166.46

Typical copayment $29.87 (range $5.86 – $41.61)

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 11

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

6 suppliers11 claims28 services$6.24 avg. paid by Medicare

Enteral feeding supply kit; pump fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4035

Other-Enteral and Parenteral · category OB006N

2 suppliers26 claims754 services$4.59 avg. paid by Medicare

Enteral formula, nutritionally complete with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4150

Other-Enteral and Parenteral · category OB006N

3 suppliers28 claims13,219 services$0.31 avg. paid by Medicare

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

2 suppliers36 claims36 services$14.55 avg. paid by Medicare

Nebulizer, with compressor E0570

DME-Other DME · category DE000N

2 suppliers21 claims21 services$3.28 avg. paid by Medicare

Continuous positive airway pressure (cpap) device E0601

DME-Other DME · category DE001N

2 suppliers14 claims14 services$24.60 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 13

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

PRAGNESH M. PATEL MD

Internal Medicine (Endocrinology, Diabetes & Metabolism)

2220 GLADSTONE DR, SUITE 3
PITTSBURG, CA 94565

Contra Costa County (925) 432-3318

CHRISTINE CAVE NP

Nurse Practitioner (Adult Health)

2220 GLADSTONE DR
PITTSBURG, CA 94565

Contra Costa County (925) 432-3318

HENRY P GONG M.D.

Internal Medicine (Interventional Cardiology)

2220 GLADSTONE DR, SUITE 3
PITTSBURG, CA 94565

Contra Costa County (925) 432-3318

DR. ALEJANDRO R PRIETO MD

Internal Medicine (Interventional Cardiology)

2220 GLADSTONE DR, SUITE 3
PITTSBURG, CA 94565

Contra Costa County (925) 432-3318

SIAMAK ELYASI M.D.

Family Medicine

2220 GLADSTONE DR, SUITE 3
PITTSBURG, CA 94565

Contra Costa County (925) 779-9601

ANGELITA DINEROS TANGCO MD

Psychiatry & Neurology (Neurology)

2220 GLADSTONE DR, SUITE 3 SPRINGHILL MEDICAL GROUP
PITTSBURG, CA 94565

Contra Costa County (925) 432-3118

HSIEN-WEN HSU M.D.

Internal Medicine (Pulmonary Disease)

2220 GLADSTONE DR, SUITE 3
PITTSBURG, CA 94565

Contra Costa County (925) 432-3318

JOHN W. GALLO DO

Internal Medicine

2220 GLADSTONE DR, STE 3
PITTSBURG, CA 94565

Contra Costa County (925) 432-3318

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 Wengang Zhang's NPI number?

The NPI number for Wengang Zhang is 1063451243. It was assigned to this individual provider in the NPPES registry on June 5, 2006.

Where is Wengang Zhang located?

Wengang Zhang practices at 2220 Gladstone Dr Suite 3, Pittsburg, CA 94565. The listed phone number is (925) 432-3318.

What is Wengang Zhang's specialty?

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

Is Wengang Zhang enrolled in Medicare?

Yes. Wengang Zhang 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 organization bills Medicare for Wengang Zhang's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Wengang Zhang reassigns Medicare benefits to Pittsburg-Antioch Medical Group A Professional Corporation (Pittsburg, CA). The 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 Wengang Zhang'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 Wengang Zhang was last updated on August 1, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.