Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Gregory G Stiefel, DO

Individual provider Family Medicine Physician · NPI 1649267881

Gregory G Stiefel, DO is registered under Family Practice in Mullica Hill, New Jersey. Graduated from Rutgers New Jersey Medical School in 1997, 29 years ago. Practices with Inspira Health Network Medical Group PC, a 240-clinician group and accepts Medicare assignment. Licensed in New Jersey.

Years since qualifying
29
Trained at
Rutgers New Jersey Medical School
Licensed in
NJ
In the registry since
2005
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.

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Practice location Address checks out

201 Tomlin Station Rd Ste B
Mullica Hill, NJ 08062-1612 Not confirmed with CMS for 13 years — call before visiting
Phone: (856) 241-2522
Fax: (856) 241-2511
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence MB06817700 (NJ)

Record details

NPI number1649267881
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedOctober 3, 2005
Last updated in NPPESApril 3, 2013

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolRUTGERS NEW JERSEY MEDICAL SCHOOL
Graduated 1997 (29 years in practice)
Group practice Inspira Health Network Medical Group Pc — 240 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients441
Services billed 2,592 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Inspira Health Network Medical Group PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 240 clinicians in the practice; 12 are shown here.

Other providers in Mullica Hill