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Active NPI 1013969591 Individual Practitioner Male Practitioner

Dr. John Byron Maccarthy , MD

Anesthesiology • Fullerton, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. John Maccarthy, MD is a certified Anesthesiology practicing in Fullerton, CA. With approximately 40 years of clinical experience since graduating from University Of Vermont College Of Medicine in 1986, Dr. Maccarthy delivers high-quality medical care to the local community at 101 E VALENCIA MESA DR.

Dr. Maccarthy is affiliated with Allied Anesthesia Medical Group Inc and accepts Medicare assignment.

Frequently performed procedures and clinical services include anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope, anesthesia for lens surgery, injection of substance into lower spine canal. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

101 E Valencia Mesa Dr

Fullerton, CA 928353809

Telephone 7148713280
Fax 7144476490
Associated Practice Facility / Clinic

Medicare Profile & Education

Medical School

University Of Vermont College Of Medicine

Graduation Year

1986

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Anesthesiology in Fullerton, CA

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
40 Yrs +16.6 yrs vs City Avg
City Avg: 23.4 Yrs
State Avg: 27.4 Yrs
Regional Practice Density
31 Specialists

Practicing in Fullerton, CA (7879 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
87.2% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Maccarthy (40 Years) 40 Yrs
Fullerton Specialty Average (23.4 Years) 23.4 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
00731 Anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope
37 36 $1017.84 $142.98
00142 Anesthesia for lens surgery
17 17 $881.18 $125.69
62322 Injection of substance into lower spine canal
16 16 $1120.00 $81.60
00840 Anesthesia for procedure in lower abdominal cavity including use of an endoscope
12 12 $1890.00 $277.46

Medical Specialties & State Licenses

Anesthesiology Primary Specialty

NUCC Taxonomy Code: 207L00000X

State License CA G67046

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
00G670460 (CA)

Hospital & Practice Group Affiliations

Allied Anesthesia Medical Group Inc

101 E Valencia Mesa Dr, Fullerton, CA 928353809

Phone: 7148713280

Practice Associates & Co-Workers

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

40 Associated Practitioners
Nelson Aguinaga , RN, FNP

Nurse Practitioner - Family

NPI 1043909609

Registered Nurse, Family Nurse Practitioner

NPI 1053803882

Doctor of Medicine (M.D.)

NPI 1174602163

Doctor of Medicine (M.D.)

NPI 1205888245

Doctor of Osteopathic Medicine (D.O.)

NPI 1235422676

Doctor of Medicine (M.D.)

Dr. Eunice Lee , MD

Anesthesiology

NPI 1245686559

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 February 19, 2015

NPI status registered as active in NPPES database

📍
Updated Practice Location February 19, 2015

Registered at 101 E VALENCIA MESA DR, FULLERTON, CA 928353809 (Tel: 7148713280)

📍
Updated Business Mailing Address February 19, 2015

Registered at PO BOX 1628, ORANGE, CA 928560628 (Tel: 7145601580)

👤
Provider Name / Credentials Updated February 19, 2015

Recorded as JOHN MACCARTHY, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) February 19, 2015

Anesthesiology (License #G67046 in CA)

🟢
Initial NPI Registration & Enumeration May 16, 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: 1013969591
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: May 16, 2006
Last Update: February 19, 2015
Sole Proprietor: No

Mailing Address

Po Box 1628

Orange, CA 928560628

Phone: 7145601580

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.