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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

RALPH C WANG MD
NPI 1497724132
Emergency Medicine in Oakland, CA

Active since March 15, 2006PECOS Enrolled
74.46/100
CMS Quality Rating
1411 EAST 31ST STREET, OAKLAND, CA 94602(209) 342-2300(209) 524-4240 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Ralph C Wang Md NPPES

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

RALPH C WANG MD (NPI 1497724132) is an individual emergency medicine provider in Oakland, California, licensed in California (A78496) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS and is a graduate of Tufts University School Of Medicine (2000).

NPPES Registry Identity

NPI1497724132
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameRALPH C WANGCredential: MD
Location Address1411 EAST 31ST STREETOakland, CA 94602-1018
Mailing Address4301 North Star WayModesto, CA 95356-9262 · (209) 342-2300 · Fax (209) 524-4240
Phone(209) 342-2300
Fax(209) 524-4240
Sole ProprietorNo
Medical School CMSTufts University School Of MedicineGraduated 2000
Enumeration DateMarch 15, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1497724132 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in CA · A78496
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
1411 EAST 31ST STREET, Oakland, CA 94602
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Other Identifiers 1

Medicaid00A784960CA

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

Ralph C Wang 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 ID244229565
PECOS Enrollment IDI20040511000584
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 3

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.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
121 services121 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
57 services56 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
17 services16 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94602 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
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

74.46/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Promoting Interoperability76
Improvement Activities40
Cost46.68

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.

DAVID PAUL HOFFMAN MD
Pediatrics
1411 EAST 31ST STREET
OAKLAND, CA 94602
Alameda County (510) 437-4323
LAWRENCE THOMAS RICHARDS MD
Specialist
1411 EAST 31ST STREET
OAKLAND, CA 94602
Alameda County (510) 437-4323
LINDSEY DEPUTY RN, MS, CNS
Registered Nurse (Oncology)
1411 EAST 31ST STREET, HCP 5 SPECIALTY CLINICS - HEMATOLOGY ONCOLOGY
OAKLAND, CA 94602
Alameda County (510) 437-4527
MRS. JAMIE LEE TALWAR CRNA
Nurse Anesthetist, Certified Registered
1411 EAST 31ST STREET
OAKLAND, CA 94602
Alameda County (510) 437-3667
NANCY LE MD
Student in an Organized Health Care Education/Training Program
1411 EAST 31ST STREET
OAKLAND, CA 94602
Alameda County (916) 686-7300
BONNIE L FLEMMING MD
Obstetrics & Gynecology
1411 EAST 31ST STREET, OAKCARE MEDICAL GROUP
OAKLAND, CA 94602
Alameda County (510) 437-4323
ALAMEDA COUNTY MEDICLA CENTER
General Acute Care Hospital (Critical Access)
1411 EAST 31ST STREET
OAKLAND, CA 94602
Alameda County (510) 437-4323
MRS. JULIE MA WILLKOM RN
Registered Nurse (Ambulatory Care)
1411 EAST 31ST STREET, HIGHLAND CARE PAVILION, TB CLINIC, 5TH FLOOR
OAKLAND, CA 94602
Alameda County (510) 437-6466

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 Ralph Wang's NPI number?

The NPI number for Ralph Wang is 1497724132. It was assigned to this individual provider in the NPPES registry on March 15, 2006.

Where is Ralph Wang located?

Ralph Wang practices at 1411 East 31st Street, Oakland, CA 94602. The listed phone number is (209) 342-2300.

What is Ralph Wang's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Ralph Wang enrolled in Medicare?

Yes. Ralph Wang 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 Ralph Wang was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 30 days 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.