Doctor profile · Federal record

Dr. Alison Leff, DO

Internal Medicine Physician (CMS: Internal Medicine) · Wynnewood, PA

  • NPI 1568499473
  • Accepts Medicare
  • 26 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
300 E Lancaster Ave Ste 400
Wynnewood, PA 190962139
(610) 642-2002
fax (610) 642-7607
Additional location
306 E Lancaster Ave Fl 4
Wynnewood, PA 190962105
(484) 476-7222
fax (484) 476-7853

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
January 3, 2018
Year of graduation
2000 — 26 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Pennsylvania #OS013095

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1568499473. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,599
Distinct HCPCS
8
Medicare allowed
$317,366
HCPCS Description Services Patients Avg allowed
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 1,078 246 $110
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 954 163 $110
99306 Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 221 186 $187
99349 Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes 137 25 $131
99306 Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 121 110 $187
99310 Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 41 38 $158
99310 Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 28 25 $158
99497 Advance care planning, first 30 minutes 19 17 $85

In context: peer comparison

Among 24 peers in Wynnewood Internal Medicine Physician, average services per provider: 105. This provider delivers 25× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
5,808
Patients
711
Total drug cost
$338,750
Drug Type Claims Patients Total cost
Eliquis (Apixaban) Brand 936 73 $259,058
Atorvastatin Calcium Generic 801 100 $12,775
Gabapentin Generic 502 61 $13,572
Trazodone Hcl Generic 405 45 $5,445
Amlodipine Besylate Generic 393 60 $4,180
Furosemide Generic 340 60 $2,284
Levothyroxine Sodium Generic 329 43 $4,336
Quetiapine Fumarate Generic 312 33 $6,297
Pantoprazole Sodium Generic 288 41 $4,708
Escitalopram Oxalate Generic 282 36 $5,388

Frequently asked questions

Auto-generated from federal data
What is Dr. Alison Leff's medical specialty?
Dr. Alison Leff practices Internal Medicine Physician in Wynnewood, PA.
Where does Dr. Alison Leff practice?
Dr. Alison Leff practices at 300 E Lancaster Ave Ste 400, Wynnewood, PA 190962139. Office phone: 6106422002.
What is Dr. Alison Leff's NPI?
Dr. Alison Leff's National Provider Identifier (NPI) is 1568499473, issued by NPPES.
Does Dr. Alison Leff accept Medicare assignment?
Yes. Dr. Alison Leff accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alison Leff commonly perform?
Top Medicare-reported procedures in 2023: Subsequent nursing facility care with moderate level of medical decision making (HCPCS 99309); Subsequent nursing facility care with moderate level of medical decision making (HCPCS 99309); Initial nursing facility care with high level of medical decision making (HCPCS 99306). Source: CMS Medicare Physician & Other Practitioners file.