Active NPI 1447552054 Individual Practitioner Male Practitioner

Dr. Martin Guadalupe Perez , MD

Surgery • Riverside, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Martin Perez, MD is a certified Surgery practicing in Riverside, CA. With approximately 16 years of clinical experience since graduating from University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb) in 2010, Dr. Perez delivers high-quality medical care to the local community at 7117 BROCKTON AVE.

Dr. Perez maintains professional affiliations with Western Acute Care Surgeons Inc, Riverside Medical Clinic Inc 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 moderate level of medical decision making, if using time, at least, initial hospital care with straightforward or low-level 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 925062658

Telephone 9517823650

Fax 9517843260

Associated Practice Facility / Clinic

🏢 Riverside Medical Clinic, Inc Facility NPI 1730180415

Medicare Profile & Education

Medical School

University Of Illinois College Of Med (Chi/peor/rock/chm-Urb)

Graduation Year

2010

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Riverside, CA

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

16 Yrs -5.7 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

89.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Perez (16 Years) 16 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
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	118	50	$2592.20	$118.60
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	66	58	$2861.36	$173.25
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	39	30	$217.38	$78.24
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	23	22	$292.83	$129.93
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	20	15	$231.00	$131.90
99291 Critical care, first 30-74 minutes	19	11	$3562.74	$211.49
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	18	18	$200.94	$114.60
45380 Biopsy of large bowel using an endoscope	16	15	$687.50	$130.29
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito	14	13	$11.22	$5.63

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	74	49	$195.95	$80.50
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	24	24	$339.75	$132.36
99213 Established patient office or other outpatient visit, typically 15 minutes	22	11	$161.00	$93.54
99231 Follow-up hospital inpatient care per day, typically 15 minutes	20	12	$88.00	$50.44
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	15	15	$200.00	$116.17
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	14	11	$227.00	$132.07
45380 Biopsy of large bowel using an endoscope	12	12	$582.00	$140.45

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	69	49	$188.93	$72.92
99213 Established patient office or other outpatient visit, typically 15 minutes	34	21	$159.60	$94.89
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	15	15	$197.40	$117.45
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	14	13	$283.29	$138.32
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	12	11	$99.60	$59.75

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	68	47	$193.29	$74.12
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	41	27	$100.00	$58.76
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	21	20	$356.43	$140.23
99202 New patient office or other outpatient visit, typically 20 minutes	12	12	$128.00	$77.02

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	48	33	$169.13	$76.43
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	21	21	$265.76	$145.14
99231 Follow-up hospital inpatient care per day, typically 15 minutes	20	16	$79.90	$41.36
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	17	15	$77.00	$48.45
99213 Established patient office or other outpatient visit, typically 15 minutes	16	13	$127.00	$79.84
99202 New patient office or other outpatient visit, typically 20 minutes	14	14	$128.00	$81.03

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	32	24	$38.00	$24.27
99202 New patient office or other outpatient visit, typically 20 minutes	22	22	$128.91	$80.41
99231 Follow-up hospital inpatient care per day, typically 15 minutes	20	16	$67.00	$40.75
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	15	14	$76.00	$47.71
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	15	14	$232.00	$141.78
99213 Established patient office or other outpatient visit, typically 15 minutes	15	13	$125.00	$78.13
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	12	12	$183.00	$113.55

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99202 New patient office or other outpatient visit, typically 20 minutes	24	24	$127.00	$77.91
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	21	14	$37.00	$22.75
99213 Established patient office or other outpatient visit, typically 15 minutes	13	11	$124.00	$75.56

Medical Specialties & State Licenses

CMS Verified: 2025-04-14

Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License CA A148965

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.

Hospital & Practice Group Affiliations

Riverside Medical Clinic Inc

7117 Brockton Ave, Riverside, CA 925062658

Phone: 9516836370

Western Acute Care Surgeons Inc

2101 N Waterman Ave, San Bernardino, CA 924044836

Phone: 9093273288

Secondary Practice Locations

1001 South George St

York, PA 174057198

Phone: 7178514362

1001 South George St

York, PA 174057198

Phone: 7178514362

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. Subbu Nagappan , MD

Surgery

NPI 1285616185

Doctor of Medicine (M.D.)

Dr. Nicholas Zekos , MD

Surgery

NPI 1407838303

Doctor of Medicine (M.D.)

Dr. Hidehisa Takei , MD

Surgery

NPI 1407839327

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

12 Historical Events

📍

Updated Business Mailing Address February 25, 2020

Registered at 7117 BROCKTON AVE, RIVERSIDE, CA 925062658 (Tel: 9517823650)

✅

NPI Profile Active January 16, 2018

NPI status registered as active in NPPES database

📍

Updated Practice Location January 16, 2018

Registered at 7117 BROCKTON AVE, RIVERSIDE, CA 925062658 (Tel: 9513216355)

📍

Updated Business Mailing Address January 16, 2018

Registered at 3660 ARLINGTON AVE, RIVERSIDE, CA 925063912 (Tel: 9513216355)

👤

Provider Name / Credentials Updated January 16, 2018

Recorded as MARTIN PEREZ, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) January 16, 2018

Surgery (License #A148965 in CA)

✅

NPI Profile Active July 11, 2011

NPI status registered as active in NPPES database

📍

Updated Practice Location July 11, 2011

Registered at 1001 SOUTH GEORGE ST, YORK, PA 174057198 (Tel: 7178514362)

📍

Updated Business Mailing Address July 11, 2011

Registered at 1001 SOUTH GEORGE ST, PO BOX 15198, YORK, PA 174057198 (Tel: 7178514362)

👤

Provider Name / Credentials Updated July 11, 2011

Recorded as MARTIN PEREZ, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 11, 2011

Surgery (License #MT199832 in PA)

🟢

Initial NPI Registration & Enumeration December 02, 2010

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: 1447552054

Entity Type:

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

Enumeration Date: December 02, 2010

Last Update: April 14, 2025

Sole Proprietor: No

Update or Correct Profile

Mailing Address

7117 Brockton Ave

Riverside, CA 925062658

Phone: 9517823650

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.