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SHARON V TSAY M.D.
NPI 1225321599
Internal Medicine - Infectious Disease in Philadelphia, PA

Active since May 19, 2011PECOS EnrolledAccepts Medicare Assignment
89.89/100
CMS Quality Rating
3801 FILBERT ST STE 103-B, PHILADELPHIA, PA 19104(215) 662-9908(215) 243-4628 Get Directions Write a Review

NPPES record last updated: March 11, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 11, 2025, Sep 22, 2018 (2 updates tracked since 2018).

About Sharon V Tsay M.d. NPPES

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

SHARON V TSAY M.D. (NPI 1225321599) is an individual infectious disease provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (455424) and active in the NPI registry since May 2011. She is enrolled in Medicare PECOS, is affiliated with Penn Presbyterian Medical Center, and is a graduate of Other (2011).

NPPES Registry Identity

NPI1225321599
Entity TypeIndividualFemale
Primary Taxonomy207RI0200X
Provider Legal NameSHARON V TSAYCredential: M.D.
Location Address3801 FILBERT ST STE 103-BPhiladelphia, PA 19104
Mailing Address3801 Filbert St Ste 103-bPhiladelphia, PA 19104 · (215) 662-9908 · Fax (215) 243-4628
Phone(215) 662-9908
Fax(215) 243-4628
Sole ProprietorNo
Medical School CMSOtherGraduated 2011
Enumeration DateMay 19, 2011
Last NPPES UpdateMarch 11, 20252 updates tracked since enumeration
NPPES CertifiedMarch 11, 2025
✔ NPI 1225321599 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License✔ Licensed in PA · 455424
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
3801 FILBERT ST STE 103-B, Philadelphia, PA 19104
Open in Google Maps ↗

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.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

Sharon V Tsay 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 ID9931417920
PECOS Enrollment IDI20240611000010
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 Reassignment

Medicare enrollment records show Sharon Tsay reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

University Of Penn-Medical Group
0.5 mi
Infectious Disease
3400 SPRUCE ST, 3 SILVERSTEIN BUILDING, SUITE D
Philadelphia, PA 19104
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 100 clinicians in this Medicare group
NPI 1194832899 (215) 662-6932

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 7

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 hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
191 services88 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.
81 services78 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
59 services23 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
23 services17 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
19 services15 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
19 services19 patients

Hospital Affiliations CMS Care Compare

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

Penn Presbyterian Medical Center

Acute Care Hospitals · Philadelphia, PA
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number390223
Location51 North 39th StreetPhiladelphia, PA 19104 · Philadelphia 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
$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.

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.

89.89/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality79.78
Promoting Interoperability100
Improvement Activities40

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 Sharon Tsay's NPI number?

The NPI number for Sharon Tsay is 1225321599. It was assigned to this individual provider in the NPPES registry on May 19, 2011.

Where is Sharon Tsay located?

Sharon Tsay practices at 3801 Filbert St Ste 103-B, Philadelphia, PA 19104. The listed phone number is (215) 662-9908.

What is Sharon Tsay's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Sharon Tsay enrolled in Medicare?

Yes. Sharon Tsay 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 organization bills Medicare for Sharon Tsay's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sharon Tsay reassigns Medicare benefits to University Of Penn-Medical Group (Philadelphia, PA). The 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 Sharon Tsay's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Sharon Tsay accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list Sharon Tsay 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 Sharon Tsay affiliated with any hospitals?

According to CMS data, Sharon Tsay is affiliated with Penn Presbyterian Medical Center.

When was this NPI record last updated?

The NPPES record for Sharon Tsay was last updated on March 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 months 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.