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

Ari Chaim Greis, DO

Individual provider Physical Medicine & Rehabilitation Physician · NPI 1831209105

Ari Chaim Greis, DO is a Physical Medicine and Rehabilitation in Bryn Mawr, Pennsylvania. Graduated from Philadelphia College of Osteopathic Medicine in 2003, 23 years ago. Practices with Phoenix Rehabilitation and Health Services Inc, a 2,720-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in New Jersey and Pennsylvania.

Years since qualifying
23
Trained at
Philadelphia College of Osteopathic Medicine
Licensed in
NJ, PA
In the registry since
2006
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

825 Old Lancaster Rd Ste 100
Bryn Mawr, PA 19010-3234
Phone: (267) 339-3558
Fax: (267) 339-3763
Show map & directions

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

Additional practice locations (1)

  • 234 Mall Blvd Ste G30, King Of Prussia, PA 19406-2921 — (267) 339-3558

Specialties & licences

Physical Medicine & Rehabilitation Physician (primary) Taxonomy 208100000X · Licence OS014246 (PA)
Physical Medicine & Rehabilitation Physician Taxonomy 208100000X · Licence 25MB09081300 (NJ)

Record details

NPI number1831209105
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedAugust 30, 2006
Last updated in NPPESMay 9, 2024
Certification dateMay 9, 2024
Mailing address833 Chestnut St Ste 520, Philadelphia, PA 19107-4430

Medicare enrollment

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

Medicare specialtyPHYSICAL MEDICINE AND REHABILITATION
Medical schoolPHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2003 (23 years in practice)
Group practice Phoenix Rehabilitation And Health Services Inc — 2720 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations5 on file with Medicare

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