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

Dr. Donald James McMahon, DO

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1285824839

Dr. Donald James McMahon, DO is a Gastroenterology in Turnersville, New Jersey. Graduated from Lake Erie College of Osteopathic Medicine, Erie in 2004, 22 years ago. Practices with Cooper Care Alliance, PC, a 118-clinician group and accepts Medicare assignment. Licensed in New Jersey.

Years since qualifying
22
Trained at
Lake Erie College of Osteopathic Medicine, Erie
Licensed in
NJ
In the registry since
2007
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

188 Fries Mill Rd Ste N-1
Turnersville, NJ 08012-2015
Phone: (856) 783-2241
Fax: (856) 783-2243
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 25MB0862200 (NJ)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1285824839
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJuly 30, 2007
Last updated in NPPESJanuary 19, 2017
Mailing address570 Egg Harbor Rd, Suite C-2, Sewell, NJ 08080-2359

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolLAKE ERIE COLLEGE OF OSTEOPATHIC MEDICINE, ERIE
Graduated 2004 (22 years in practice)
Group practice Cooper Care Alliance, Pc — 118 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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