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Active NPI 1396131850 Individual Practitioner Male Practitioner

Dr. John Reinier Favor Narvaez , MD, MPH

Surgery • Torrance, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. John Reinier Narvaez, MD, MPH is a certified Surgery practicing in Torrance, CA. With approximately 11 years of clinical experience since graduating from University Of California, San Francisco School Of Medicine in 2015, Dr. Narvaez delivers high-quality medical care to the local community at 1000 W CARSON ST.

Dr. Narvaez is affiliated with Guam Healthcare Development Incorporated and accepts Medicare assignment.

Frequently performed procedures and clinical services include initial hospital care with straightforward or low-level medical decision making, if using time, at least, biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope, new patient outpatient office visit. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1000 W Carson St

Torrance, CA 905022004

Telephone 4243064000
Associated Practice Facility / Clinic
🏢 County Of Los Angeles Facility NPI 1477574838

Medicare Profile & Education

Medical School

University Of California, San Francisco School Of Medicine

Graduation Year

2015

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Torrance, CA

Established Specialist (10-20 Yrs)
Practitioner Clinical Experience
11 Yrs -11.8 yrs vs City Avg
City Avg: 22.8 Yrs
State Avg: 27.4 Yrs
Regional Practice Density
54 Specialists

Practicing in Torrance, CA (3346 Statewide)

Telehealth Adoption Rate
14.8% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
81.5% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Narvaez (11 Years) 11 Yrs
Torrance Specialty Average (22.8 Years) 22.8 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
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
30 30 $395.97 $128.27
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope
28 26 $1261.29 $119.51
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
19 19 $352.79 $78.28
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
18 14 $241.59 $77.50
99213 Established patient office or other outpatient visit, typically 15 minutes
18 16 $288.00 $65.31

Medical Specialties & State Licenses

CMS Verified: 2023-05-10
Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License CA A177676

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

NUCC Taxonomy Code: 208600000X

State License GU M-2371

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

NUCC Taxonomy Code: 208600000X

State License NY 291376

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 - Surgical Critical Care

NUCC Taxonomy Code: 2086S0102X

State License GU M-2371

A surgeon with expertise in the management of the critically ill and postoperative patient, particularly the trauma victim, who specializes in critical care medicine diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

Student in an Organized Health Care Education/Training Program

NUCC Taxonomy Code: 390200000X

An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.

Hospital & Practice Group Affiliations

Guam Healthcare Development Incorporated

133 Route 3, Dededo, GU 969296911

Phone: 6716455500

Practice Associates & Co-Workers

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

40 Associated Practitioners
Kenton Sakurai

Psychiatry & Neurology - Psychiatry

NPI 1003610197
NPI 1023710456

Doctor of Medicine (M.D.)

Dr. Morgan Caldwell , MD MSM

Student in an Organized Health Care Education/Training Program

NPI 1023811064

MDMSM

Dr. Siddarth Amuthan , MBBS

Student in an Organized Health Care Education/Training Program

NPI 1033734454

Bachelor of Medicine, Bachelor of Surgery (M.B.B.S.)

Festus Nnadi

Nurse Practitioner - Psychiatric/Mental Health

NPI 1043149248
Dr. John Macaulay , MD

Student in an Organized Health Care Education/Training Program

NPI 1043150972

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

10 Historical Events
📍
Updated Practice Location March 25, 2023

Registered at 1000 W CARSON ST, TORRANCE, CA 905022004 (Tel: 4243064000)

📍
Updated Business Mailing Address March 25, 2023

Registered at 20732 SEINE AVE APT L, LAKEWOOD, CA 907152803 (Tel: 5622613551)

👤
Provider Name / Credentials Updated March 25, 2023

Recorded as JOHN REINIER NARVAEZ, MD, MPH

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) March 25, 2023

Surgery (License #M-2371 in GU)

NPI Profile Active April 11, 2015

NPI status registered as active in NPPES database

📍
Updated Practice Location April 11, 2015

Registered at 3435 MAIN ST, 117 CARY HALL, BUFFALO, NY 142143001 (Tel: 7168597756)

📍
Updated Business Mailing Address April 11, 2015

Registered at 3435 MAIN ST, 117 CARY HALL, BUFFALO, NY 142143001

👤
Provider Name / Credentials Updated April 11, 2015

Recorded as JOHN REINIER NARVAEZ, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) April 11, 2015

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration April 11, 2015

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: 1396131850
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 11, 2015
Last Update: October 27, 2023
Sole Proprietor: No

Mailing Address

20732 Seine Ave Apt L

Lakewood, CA 907152803

Phone: 5622613551

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.