Active NPI 1992764294 Individual Practitioner Male Practitioner

Dr. David Yihon Wang , MD

Surgery • Covina, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. David Wang, MD is a certified Surgery practicing in Covina, CA. With approximately 37 years of clinical experience since graduating from R Franklin University Of Med & Sci/Chicago Medical School in 1989, Dr. Wang delivers high-quality medical care to the local community at 420 W ROWLAND ST.

Dr. Wang is affiliated with Healthcare Partners Affiliates Medical Group and accepts Medicare assignment.

Frequently performed procedures and clinical services include new patient outpatient office visit, established patient outpatient office visit, biopsy of large bowel using an endoscope. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

420 W Rowland St

Covina, CA 917232943

Telephone 6263316411

Fax 6262511559

Associated Practice Facility / Clinic

🏢 Cbc Professional Pharmacy Inc Facility NPI 1033202460

Medicare Profile & Education

Medical School

R Franklin University Of Med & Sci/chicago Medical School

Graduation Year

1989

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Covina, CA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

37 Yrs -10.5 yrs vs City Avg

City Avg: 47.5 Yrs

State Avg: 27.4 Yrs

Regional Practice Density

6 Specialists

Practicing in Covina, CA (3346 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

79.9% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Wang (37 Years) 37 Yrs

Covina Specialty Average (47.5 Years) 47.5 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	32	32	$306.69	$118.03
99213 Established patient office or other outpatient visit, typically 15 minutes	26	18	$256.69	$98.34
45380 Biopsy of large bowel using an endoscope	14	14	$1333.86	$165.46

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	42	42	$180.95	$120.11
99213 Established patient office or other outpatient visit, typically 15 minutes	36	26	$125.03	$98.50
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	14	14	$855.00	$191.95

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	43	27	$121.00	$97.27
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	41	41	$180.00	$119.89
46600 Diagnostic examination of the anus using an endoscope	15	14	$204.00	$139.50
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	11	11	$855.00	$189.90

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	71	43	$121.00	$101.43
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	55	55	$180.00	$122.57
46600 Diagnostic examination of the anus using an endoscope	14	13	$204.00	$142.62
45380 Biopsy of large bowel using an endoscope	14	14	$971.93	$160.52

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	54	36	$121.00	$83.37
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	46	46	$180.00	$119.40
46600 Diagnostic examination of the anus using an endoscope	18	12	$204.00	$120.71

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	64	44	$121.00	$81.71
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	33	33	$180.00	$118.50
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	18	18	$271.00	$171.12

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	86	51	$121.00	$79.67
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	37	37	$180.00	$115.26
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	32	32	$271.00	$174.06
46600 Diagnostic examination of the anus using an endoscope	16	15	$204.00	$102.30

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	102	57	$108.86	$78.12
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	48	48	$180.00	$116.13
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	31	31	$271.61	$173.29
46600 Diagnostic examination of the anus using an endoscope	23	18	$204.57	$100.63
45380 Biopsy of large bowel using an endoscope	12	11	$1020.67	$204.99

Medical Specialties & State Licenses

CMS Verified: 2026-01-14

Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License CA G84366

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Colon & Rectal Surgery

NUCC Taxonomy Code: 208C00000X

State License CA G84366

A colon and rectal surgeon is trained to diagnose and treat various diseases of the intestinal tract, colon, rectum, anal canal and perianal area by medical and surgical means. This specialist also deals with other organs and tissues (such as the liver, urinary and female reproductive system) involved with primary intestinal disease.

Hospital & Practice Group Affiliations

Healthcare Partners Affiliates Medical Group

420 W Rowland St, Covina, CA 917232943

Phone: 6263316411

Healthcare Partners Affiliates Medical Group

824 E Carson St, Carson, CA 907452262

Phone: 3108309706

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners

Dr. Nemish Patel , MD

Internal Medicine

NPI 1003136813

Doctor of Medicine (M.D.)

Dr. Robert Leonard , MD

Emergency Medicine

NPI 1013337641

Doctor of Medicine (M.D.)

Dr. Arlene Nepomuceno , MD

Internal Medicine

NPI 1043279037

Doctor of Medicine (M.D.)

Dr. Elizabeth Kula , MD

Ophthalmology

NPI 1063471936

Doctor of Medicine (M.D.)

Dr. Louis Bauman , MD

Dermatology

NPI 1063524445

Doctor of Medicine (M.D.)

Dr. Sarah Anh , MD

Emergency Medicine

NPI 1104037159

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

8 Historical Events

📍

Updated Business Mailing Address January 14, 2026

Registered at PO BOX 35380, LAS VEGAS, NV 891335380 (Tel: 7025793203)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) January 14, 2026

Colon & Rectal Surgery (License #G84366 in CA)

✅

NPI Profile Active April 25, 2008

NPI status registered as active in NPPES database

📍

Updated Practice Location April 25, 2008

Registered at 420 W ROWLAND ST, COVINA, CA 917232943 (Tel: 6263316411)

📍

Updated Business Mailing Address April 25, 2008

Registered at 420 W ROWLAND ST, COVINA, CA 917232943 (Tel: 6263316411)

👤

Provider Name / Credentials Updated April 25, 2008

Recorded as DAVID WANG, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) April 25, 2008

Surgery (License #G84366 in CA)

🟢

Initial NPI Registration & Enumeration March 23, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1992764294

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: March 23, 2006

Last Update: January 14, 2026

Sole Proprietor: No

Update or Correct Profile

Mailing Address

Po Box 35380

Las Vegas, NV 891335380

Phone: 7025793203

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.