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ALISON JOY LEFF DO
NPI 1568499473
Internal Medicine in Wynnewood, PA

Active since June 27, 2006PECOS EnrolledAccepts Medicare Assignment
306 E LANCASTER AVE FL 4, WYNNEWOOD, PA 19096(484) 476-7222(484) 476-7853 Get Directions Write a Review

NPPES record last updated: January 3, 2018. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Aug 3, 2017, Sep 30, 2015 (2 updates tracked since 2015).

About Alison Joy Leff Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ALISON JOY LEFF DO (NPI 1568499473) is an individual internal medicine provider in Wynnewood, Pennsylvania, licensed in Pennsylvania (OS013095) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS, maintains a secondary practice location in Wynnewood, and is a graduate of Philadelphia College Of Osteopathic Medicine (2000).

NPPES Registry Identity

NPI1568499473
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameALISON JOY LEFFCredential: DO
Location Address306 E LANCASTER AVE FL 4Wynnewood, PA 19096-2105
Mailing Address300 E Lancaster Ave Ste 400Wynnewood, PA 19096-2139 · (610) 642-2002 · Fax (610) 642-7607
Phone(484) 476-7222
Fax(484) 476-7853
Sole ProprietorNo
Medical School CMSPhiladelphia College Of Osteopathic MedicineGraduated 2000
Enumeration DateJune 27, 2006
Last NPPES UpdateJanuary 3, 20182 updates tracked since enumeration
✔ NPI 1568499473 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in PA · OS013095
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
306 E LANCASTER AVE FL 4, Wynnewood, PA 19096
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Secondary Practice Location 1

Location 1306 E Lancaster Ave Fl 4Wynnewood, PA 19096-2105 · Phone (484) 476-7222 · Fax (484) 476-7853

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Alison Joy Leff Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8921086414
PECOS Enrollment IDI20040712000177
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

4

Medicare enrollment records show Alison Leff reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Bryn Mawr Medical Specialists Association
2.5 mi
Multi-Specialty
825 OLD LANCASTER RD, SUITE 320
Bryn Mawr, PA 19010
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 171 clinicians in this Medicare group
NPI 1841226099 (610) 527-3800
Geps Physician Group Of Pennsylvania PC
25 mi
Internal Medicine
101 E STATE ST
Kennett Square, PA 19348
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 90 clinicians in this Medicare group
NPI 1467471615 (610) 925-4157
Alignmed Medical Group, PC
78 mi
Geriatric Medicine
9200 FRANKLIN SQUARE DR
Baltimore, MD 21237
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 93 clinicians in this Medicare group
NPI 1366289423 (410) 391-2600
Alignmed Partners, PC
773 mi
Geriatric Medicine
420 DEAN DR
Gardendale, AL 35071
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 92 clinicians in this Medicare group
NPI 1881109452 (205) 631-8709

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 9

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309
A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.
1,800 services309 patients
Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes 99349
An established patient home visit is a medical appointment conducted at your home, typically lasting around 40 minutes. This service is ideal for patients who may find it difficult to travel to a healthcare facility. During this visit, a healthcare professional will evaluate your health status, manage your care, and answer any health-related questions you may have.
348 services44 patients
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309
A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.
299 services93 patients
Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more 99306
An initial nursing facility visit is your first meeting with your healthcare team at a nursing facility. Lasting typically 45 minutes, this appointment involves a comprehensive health assessment and the creation of your personalized care plan. It's a crucial step to ensure your health and well-being.
280 services243 patients
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 99310
A follow-up nursing facility visit is a routine check-up that typically lasts about 35 minutes. During this visit, your health status is evaluated, any changes in your condition are noted, and necessary adjustments to your care plan are made. It's an essential part of maintaining your health.
222 services102 patients
Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more 99306
An initial nursing facility visit is your first meeting with your healthcare team at a nursing facility. Lasting typically 45 minutes, this appointment involves a comprehensive health assessment and the creation of your personalized care plan. It's a crucial step to ensure your health and well-being.
70 services59 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19096 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$137.17 typical visit price
range $59.88 – $180.99
Typical copayment $34.29 (range $14.97 – $45.24)
Most-billed visit code 99204
Established Patient
$105.21 typical visit price
range $19.30 – $147.29
Typical copayment $26.30 (range $4.82 – $36.82)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 11

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Insertion tray with drainage bag with indwelling catheter, foley type, two-way latex with coating (teflon, silicone, silicone elastomer or hydrophilic, etc.) A4314
DME-Orthotic Devices · category DF000N
3 suppliers13 claims13 services$23.11 avg. paid by Medicare
Bedside drainage bag, day or night, with or without anti-reflux device, with or without tube, each A4357
DME-Orthotic Devices · category DF000N
4 suppliers20 claims22 services$8.84 avg. paid by Medicare
Tape, waterproof, per 18 square inches A4452
DME-Medical/Surgical Supplies · category DA000N
1 supplier14 claims2,880 services$0.37 avg. paid by Medicare
Composite dressing, sterile, pad size 16 sq. in. or less, with any size adhesive border, each dressing A6203
DME-Medical/Surgical Supplies · category DA023N
1 supplier19 claims1,049 services$3.24 avg. paid by Medicare
Conforming bandage, non-elastic, knitted/woven, sterile, width greater than or equal to three inches and less than five inches, per yard A6446
DME-Medical/Surgical Supplies · category DA023N
2 suppliers18 claims2,493 services$0.37 avg. paid by Medicare
Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260
DME-Hospital Beds · category DB000N
2 suppliers13 claims13 services$52.52 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Alison Leff's NPI number?

The NPI number for Alison Leff is 1568499473. It was assigned to this individual provider in the NPPES registry on June 27, 2006.

Where is Alison Leff located?

Alison Leff practices at 306 E Lancaster Ave Fl 4, Wynnewood, PA 19096. The listed phone number is (484) 476-7222.

What is Alison Leff's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Alison Leff enrolled in Medicare?

Yes. Alison Leff is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Alison Leff's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alison Leff reassigns Medicare benefits to 4 organizations: Bryn Mawr Medical Specialists Association (Bryn Mawr, PA), Geps Physician Group Of Pennsylvania PC (Kennett Square, PA), Alignmed Medical Group, PC (Baltimore, MD) and Alignmed Partners, PC (Gardendale, AL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Alison Leff's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Alison Leff was last updated on January 3, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.