Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1043773732 Individual Practitioner Male Practitioner

Dr. John Michael Masterson , MD

Urology • New Castle, DE

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. John Masterson, MD is a certified Urology practicing in New Castle, DE. With approximately 7 years of clinical experience since graduating from University Of Miami, Lm Miller School Of Medicine in 2019, Dr. Masterson delivers high-quality medical care to the local community at 12 READS WAY STE 2000.

Dr. Masterson maintains professional affiliations with Brandywine Urology Consultants Pa, Christiana Care Health Services Inc and accepts Medicare assignment.

Practice Location & Contact Primary Location

Practice Address

12 Reads Way Ste 2000

New Castle, DE 197201649

Telephone 3026528990
Associated Practice Facility / Clinic

Medicare Profile & Education

Medical School

University Of Miami, Lm Miller School Of Medicine

Graduation Year

2019

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Urology in New Castle, DE

Experienced Practitioner (5-10 Yrs)
Practitioner Clinical Experience
7 Yrs -16.3 yrs vs City Avg
City Avg: 23.3 Yrs
State Avg: 26.4 Yrs
Regional Practice Density
11 Specialists

Practicing in New Castle, DE (41 Statewide)

Telehealth Adoption Rate
27.3% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Masterson (7 Years) 7 Yrs
New Castle Specialty Average (23.3 Years) 23.3 Yrs

Medical Specialties & State Licenses

CMS Verified: 2026-02-27
Urology Primary Specialty

NUCC Taxonomy Code: 208800000X

State License DE C1-0028061

A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.

Hospital & Practice Group Affiliations

Brandywine Urology Consultants Pa

2000 Foulk Rd, Wilmington, DE 198103642

Phone: 3026528990

Christiana Care Health Services Inc

4755 Ogletown Stanton Rd, Newark, DE 197182200

Practice Associates & Co-Workers

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

19 Associated Practitioners
Gabriel Pelaez , PA-C

Physician Assistant

NPI 1003392838

Physician Assistant (Certified)

NPI 1124274105

Doctor of Medicine (M.D.)

NPI 1144278722

Doctor of Medicine (M.D.)

NPI 1265536353

Doctor of Medicine (M.D.)

NPI 1275582934

Doctor of Medicine (M.D.)

NPI 1356399935

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 27, 2026

Registered at 12 READS WAY STE 2000, NEW CASTLE, DE 197201649 (Tel: 3026528990)

📍
Updated Practice Location December 24, 2025

Registered at 12 READS WAY STE 2000, NEW CASTLE, DE 197201649 (Tel: 3026528990)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) December 24, 2025

Urology (License #C1-0028061 in DE)

📍
Updated Practice Location August 07, 2024

Registered at 525 E 68TH ST # 900, NEW YORK, NY 100654870 (Tel: 2127465566)

👤
Provider Name / Credentials Updated August 07, 2024

Recorded as JOHN MASTERSON, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) August 07, 2024

Urology (License #325918 in NY)

NPI Profile Active April 09, 2019

NPI status registered as active in NPPES database

📍
Updated Practice Location April 09, 2019

Registered at 8635 W 3RD ST STE 1070W, LOS ANGELES, CA 900486137 (Tel: 3104234700)

📍
Updated Business Mailing Address April 09, 2019

Registered at 8635 W 3RD ST STE 1070W, LOS ANGELES, CA 900486137 (Tel: 3104234700)

👤
Provider Name / Credentials Updated April 09, 2019

Recorded as JOHN MASTERSON

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) April 09, 2019

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration April 09, 2019

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: 1043773732
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 09, 2019
Last Update: February 27, 2026
Sole Proprietor: No

Mailing Address

12 Reads Way Ste 2000

New Castle, DE 197201649

Phone: 3026528990

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.