Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Justin Oldfield, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1457766438

Justin Oldfield, MD is registered under Family Practice in New York, New York. Graduated from Tufts University School of Medicine in 2014, 12 years ago. Practices with One Medical of Ny PC, a 72-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Michigan and New York.

Years since qualifying
12
Trained at
Tufts University School of Medicine
Licensed in
MI, NY
In the registry since
2014
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

New York, NY

Additional practice locations (1)

  • 35 E 21st St Fl 7, New York, NY 10010-6212 — (212) 530-0659

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 287289 (NY)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence 4301105653 (MI)

Record details

NPI number1457766438
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 27, 2014
Last updated in NPPESMarch 15, 2025
Certification dateMarch 15, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolTUFTS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2014 (12 years in practice)
Group practice One Medical Of Ny Pc — 72 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients61
Services billed 205 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at One Medical of Ny PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 72 clinicians in the practice; 12 are shown here.

Other providers in New York