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WILLIAM YI M.D,
NPI 1861628729
Surgery in Philadelphia, PA

Active since June 05, 2009PECOS EnrolledAccepts Medicare Assignment
90.34/100
CMS Quality Rating
3400 SPRUCE STREET, PHILADELPHIA, PA 19104(215) 662-4000(615) 781-3882 Get Directions Write a Review

NPPES record last updated: August 21, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 21, 2023, Jan 11, 2022, Aug 30, 2017 and 1 more (4 updates tracked since 2016).

About William Yi M.d, NPPES

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

WILLIAM YI M.D, (NPI 1861628729) is an individual surgery provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD471817) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS, is affiliated with Wilkes-barre General Hospital, and is a graduate of Vanderbilt University School Of Medicine (2009).

NPPES Registry Identity

NPI1861628729
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameWILLIAM YICredential: M.D,
Location Address3400 SPRUCE STREETPhiladelphia, PA 19104
Mailing Address3400 Spruce StreetPhiladelphia, PA 19104 · (215) 662-4000 · Fax (615) 781-3882
Phone(215) 662-4000
Fax(615) 781-3882
Sole ProprietorNo
Medical School CMSVanderbilt University School Of MedicineGraduated 2009
Enumeration DateJune 5, 2009
Last NPPES UpdateAugust 21, 20234 updates tracked since enumeration
NPPES CertifiedAugust 21, 2023
✔ NPI 1861628729 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in PA · MD471817
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
Also ListedInternal MedicineTaxonomy 207R00000X · License MD471817 (PA)
3400 SPRUCE STREET, Philadelphia, PA 19104
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter Health, Ambetter Health of Delaware and more.Insurance ›

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

William Yi M.d, 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 ID1254646573
PECOS Enrollment IDI20200922001924
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

3

Medicare enrollment records show William Yi reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

University Of Penn-Medical Group
Same address
Dermatopathology
3400 SPRUCE ST, 2 RHOADS PAVILION
Philadelphia, PA 19104
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 3,488 clinicians in this Medicare group
NPI 1073902169 (215) 662-2737
Vohra Post Acute Care Physicians Of The Northeast PA
9.2 mi
Family Medicine
28 GARRETT AVE STE 202
Bryn Mawr, PA 19010
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 39 clinicians in this Medicare group
NPI 1275969131 (877) 866-7123
Commonwealth Physician Network LLC
98 mi
Internal Medicine
610 WYOMING AVE
Kingston, PA 18704
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 73 clinicians in this Medicare group
NPI 1003238635 (570) 288-5441

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 6

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.

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
35 services35 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
16 services15 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
16 services15 patients
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221
Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.
14 services13 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
13 services11 patients
Removal of gallbladder using an endoscope 47562
This procedure, known as endoscopic gallbladder removal, involves a surgeon using a special tool called an endoscope to remove your gallbladder through small incisions. It's typically done to treat gallstones and related complications. It's a less invasive method, often leading to quicker recovery.
11 services11 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Wilkes-Barre General Hospital

Acute Care Hospitals · Wilkes-Barre, PA
1/5 CMS rating
OwnershipProprietary
CMS Certification Number390137
Location575 North River StreetWilkes-Barre, PA 18764 · Luzerne County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19104 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
$92.69 typical visit price
range $59.88 – $180.99
Typical copayment $23.17 (range $14.97 – $45.24)
Most-billed visit code 99203
Established Patient
$74.47 typical visit price
range $19.30 – $147.29
Typical copayment $18.61 (range $4.82 – $36.82)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

90.34/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality80.69
Promoting Interoperability100
Improvement Activities40

Referred Medical Equipment & Supplies CMS DME claims

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

Gauze, non-impregnated, sterile, pad size 16 sq. in. or less, with any size adhesive border, each dressing A6219
DME-Medical/Surgical Supplies · category DA023N
2 suppliers18 claims616 services$0.91 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SARAH KUMAR M.D.
Anesthesiology (Critical Care Medicine)
3400 SPRUCE STREET
PHILADELPHIA, PA 19104
Philadelphia County (215) 349-8310
RYAN MCCLINTOCK MD
Radiology (Diagnostic Radiology)
3400 SPRUCE STREET
PHILADELPHIA, PA 19104
Philadelphia County (215) 662-3000
ADRIAN W ONG MD
Surgery (Surgical Critical Care)
3400 SPRUCE STREET, 2 DULLES
PHILADELPHIA, PA 19104
Philadelphia County (215) 662-7320
MATHEW N BESHARA MD
Obstetrics & Gynecology
3400 SPRUCE STREET, 5 PENN TOWER
PHILADELPHIA, PA 19104
Philadelphia County (215) 662-6035
JILL E LANGER MD
Radiology (Diagnostic Radiology)
3400 SPRUCE STREET, GROUND FLOOR DULLES
PHILADELPHIA, PA 19104
Philadelphia County (215) 662-7012
BERNADETTE C WHEELER MD
Obstetrics & Gynecology
3400 SPRUCE STREET, 1 WEST GATES
PHILADELPHIA, PA 19104
Philadelphia County (215) 662-2730
EDWARD T DICKINSON MD
Emergency Medicine
3400 SPRUCE STREET, GROUND SILVERSTEIN BLDG
PHILADELPHIA, PA 19104
Philadelphia County (215) 662-6698
WENDY RACHEL GALPERN MD, PHD
Psychiatry & Neurology (Neurology)
3400 SPRUCE STREET
PHILADELPHIA, PA 19104
Philadelphia County (215) 662-2219

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 William Yi's NPI number?

The NPI number for William Yi is 1861628729. It was assigned to this individual provider in the NPPES registry on June 5, 2009.

Where is William Yi located?

William Yi practices at 3400 Spruce Street, Philadelphia, PA 19104. The listed phone number is (215) 662-4000.

What is William Yi's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is William Yi enrolled in Medicare?

Yes. William Yi 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 William Yi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Yi reassigns Medicare benefits to 3 organizations: University Of Penn-Medical Group (Philadelphia, PA), Vohra Post Acute Care Physicians Of The Northeast PA (Bryn Mawr, PA) and Commonwealth Physician Network LLC (Kingston, PA). 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 William Yi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Yi accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Buckeye Health Plan and Cigna Healthcare list William Yi as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is William Yi affiliated with any hospitals?

According to CMS data, William Yi is affiliated with Wilkes-Barre General Hospital.

When was this NPI record last updated?

The NPPES record for William Yi was last updated on August 21, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.