Active NPI 1285616185 Individual Practitioner Male Practitioner

Dr. Subbu Nagappan , MD

Surgery • Riverside, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Subbu Nagappan, MD is a certified Surgery practicing in Riverside, CA. With approximately 43 years of clinical experience since completing medical education in 1983, Dr. Nagappan delivers high-quality medical care to the local community at 7117 BROCKTON AVE.

Dr. Nagappan is affiliated with El-Bershawi Medical Corp and accepts Medicare assignment.

Frequently performed procedures and clinical services include subsequent hospital care with moderate levelof medical decision making, if using time, at least, initial hospital care with straightforward or low-level medical decision making, if using time, at least, initial hospital care with moderate level of medical decision making, if using time, at least. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

7117 Brockton Ave

Riverside, CA 925062615

Telephone 9517823651

Fax 9517843260

Associated Practice Facility / Clinic

🏢 Riverside Medical Clinic, Inc Facility NPI 1730180415

Medicare Profile & Education

Medical School

Other

Graduation Year

1983

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Riverside, CA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

43 Yrs +21.3 yrs vs City Avg

City Avg: 21.7 Yrs

State Avg: 27.4 Yrs

Regional Practice Density

57 Specialists

Practicing in Riverside, CA (3346 Statewide)

Telehealth Adoption Rate

1.8% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

68.9% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Nagappan (43 Years) 43 Yrs

Riverside Specialty Average (21.7 Years) 21.7 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
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	209	105	$228.78	$78.69
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	45	45	$425.00	$130.57
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	16	16	$625.00	$172.54
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	14	11	$325.00	$117.92
99291 Critical care, first 30-74 minutes	12	12	$690.00	$210.63
99284 Emergency department visit with moderate level of medical decision making	12	12	$372.00	$119.37

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	70	42	$332.49	$80.50
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	39	29	$404.85	$121.09
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	32	32	$922.94	$176.46
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	19	19	$719.42	$132.36
99213 Established patient office or other outpatient visit, typically 15 minutes	16	14	$161.00	$93.54
99291 Critical care, first 30-74 minutes	16	13	$756.56	$216.16
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	16	16	$200.00	$116.08
99284 Emergency department visit with moderate level of medical decision making	13	12	$431.38	$122.11

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	25	22	$468.00	$73.14
99231 Follow-up hospital inpatient care per day, typically 15 minutes	23	16	$252.00	$39.61
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	20	11	$671.00	$104.92
99221 Initial hospital inpatient care per day, typically 30 minutes	18	17	$651.00	$102.87
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	18	18	$197.40	$117.50
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	11	11	$1306.00	$202.09

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	26	17	$244.88	$39.57
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	25	17	$468.00	$74.12
99221 Initial hospital inpatient care per day, typically 30 minutes	16	16	$621.19	$104.04

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	34	23	$468.00	$75.58
99231 Follow-up hospital inpatient care per day, typically 15 minutes	29	18	$232.86	$40.80
99221 Initial hospital inpatient care per day, typically 30 minutes	20	20	$627.10	$105.96

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	50	32	$390.89	$74.63
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	43	27	$85.35	$47.49
99231 Follow-up hospital inpatient care per day, typically 15 minutes	28	19	$236.16	$40.24
99213 Established patient office or other outpatient visit, typically 15 minutes	25	21	$138.52	$77.76
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	20	20	$183.00	$113.10
99221 Initial hospital inpatient care per day, typically 30 minutes	19	19	$625.79	$103.43
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	18	17	$556.00	$140.57
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	17	17	$278.00	$171.14

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	41	30	$645.24	$74.35
99231 Follow-up hospital inpatient care per day, typically 15 minutes	34	16	$374.96	$39.96
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	23	23	$279.00	$169.29
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	22	15	$126.00	$45.79
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	21	16	$182.00	$111.43
99291 Critical care, first 30-74 minutes	18	18	$2650.03	$225.90
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	16	16	$755.50	$139.37
99221 Initial hospital inpatient care per day, typically 30 minutes	15	15	$1130.88	$96.83

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	65	36	$592.42	$73.59
99231 Follow-up hospital inpatient care per day, typically 15 minutes	29	23	$273.90	$39.86
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	24	24	$630.04	$139.04
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	18	18	$278.00	$168.19
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	18	12	$672.00	$106.28
99213 Established patient office or other outpatient visit, typically 15 minutes	18	16	$124.00	$75.56
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	16	16	$220.44	$111.39
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	15	14	$74.00	$45.34
99221 Initial hospital inpatient care per day, typically 30 minutes	12	12	$668.31	$102.59

Medical Specialties & State Licenses

Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License CA G70352

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.

Surgery - Trauma Surgery

NUCC Taxonomy Code: 2086S0127X

State License CA G70352

Trauma surgery is a recognized subspecialty of general surgery. Trauma surgeons are physicians who have completed a five-year general surgery residency and usually continue with a one to two year fellowship in trauma and/or surgical critical care, typically leading to additional board certification in surgical critical care. There is no trauma surgery board certification at this point. To obtain board certification in surgical critical care, a fellowship in surgical critical care or anesthesiology critical care must be completed during or after general surgery residency.

Surgery - Vascular Surgery

NUCC Taxonomy Code: 2086S0129X

State License CA G70352

A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.

Additional State Medicaid & Healthcare Payer Identifiers

Commercial Insurance / Payer ID Group Npi

1730180415

Commercial Insurance / Payer ID Group Site Number

ZZZ31887Z

Hospital & Practice Group Affiliations

El-Bershawi Medical Corp

4234 Riverwalk Pkwy, Riverside, CA 925053312

Phone: 9517813672

Practice Associates & Co-Workers

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

5 Associated Practitioners

Dr. Hongphuc Ha , DO

Surgery

NPI 1043473341

Doctor of Osteopathic Medicine (D.O.)

Dr. Nicholas Zekos , MD

Surgery

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Doctor of Medicine (M.D.)

Dr. Hidehisa Takei , MD

Surgery

NPI 1407839327

Doctor of Medicine (M.D.)

Dr. Martin Perez , MD

Surgery

NPI 1447552054

Doctor of Medicine (M.D.)

Dr. Kambiz Zainabadi , MD

Surgery

NPI 1760418974

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active December 29, 2010

NPI status registered as active in NPPES database

📍

Updated Practice Location December 29, 2010

Registered at 7117 BROCKTON AVE, RIVERSIDE, CA 925062615 (Tel: 9517823651)

📍

Updated Business Mailing Address December 29, 2010

Registered at 3660 ARLINGTON AVE, RIVERSIDE, CA 925063912 (Tel: 9517825110)

👤

Provider Name / Credentials Updated December 29, 2010

Recorded as SUBBU NAGAPPAN, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) December 29, 2010

Surgery (License #G70352 in CA)

🟢

Initial NPI Registration & Enumeration November 16, 2005

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: 1285616185

Entity Type:

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

Enumeration Date: November 16, 2005

Last Update: December 29, 2010

Sole Proprietor: No

Update or Correct Profile

Mailing Address

3660 Arlington Ave

Riverside, CA 925063912

Phone: 9517825110

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.