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

Alison Joy Leff, DO

Individual provider Internal Medicine Physician · NPI 1568499473

Alison Joy Leff, DO practises Internal Medicine in Wynnewood, Pennsylvania. Graduated from Philadelphia College of Osteopathic Medicine in 2000, 26 years ago. Practices with Alignmed Medical Group PC, a 60-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
26
Trained at
Philadelphia College of Osteopathic Medicine
Licensed in
PA
In the registry since
2006
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

300 E Lancaster Ave Ste 400
Wynnewood, PA 19096-2139
Phone: (610) 642-2002
Fax: (610) 642-7607
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 306 E Lancaster Ave Fl 4, Wynnewood, PA 19096-2105 — (484) 476-7222

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence OS013095 (PA)

Record details

NPI number1568499473
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 27, 2006
Last updated in NPPESJanuary 3, 2018

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolPHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2000 (26 years in practice)
Group practice Alignmed Medical Group Pc — 60 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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 patients472
Services billed 3,095 a service is one billed item, such as a visit, a test or a procedure
Average patient age80

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 Alignmed Medical Group PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 60 clinicians in the practice; 12 are shown here.

Other providers in Wynnewood