WILLIAM J TESTER MD
NPI 1386613693
Internal Medicine - Hematology & Oncology in Philadelphia, PA

Active since March 17, 2006PECOS EnrolledAccepts Medicare Assignment
925 CHESTNUT ST STE 320A, PHILADELPHIA, PA 19107(215) 955-8874(215) 955-2340 Get Directions Write a Review

NPPES record last updated: November 9, 2018. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About William J Tester Md NPPES

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

WILLIAM J TESTER MD (NPI 1386613693) is an individual hematology & oncology provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD021791E) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Jefferson Stratford Hospital, and is a graduate of Hahnemann University College Of Medicine (1972).

NPPES Registry Identity

NPI1386613693
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameWILLIAM J TESTERCredential: MD
Location Address925 CHESTNUT ST STE 320APhiladelphia, PA 19107
Mailing Address925 Chestnut St Ste 320aPhiladelphia, PA 19107-4216 · (215) 955-8874 · Fax (215) 955-2340
Fax(215) 955-2340
Sole ProprietorNo
Medical School CMSHahnemann University College Of MedicineGraduated 1972
Enumeration DateMarch 17, 2006
Last NPPES UpdateNovember 9, 2018
NPI 1386613693 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License Licensed in PA · MD021791E
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
Also ListedInternal Medicine · Medical OncologyTaxonomy 207RX0202X · License MD021791E (PA)
925 CHESTNUT ST STE 320A, Philadelphia, PA 19107

Other Identifiers 1

Medicaid0009201560004PA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

William J Tester Md 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 ID5496931396
PECOS Enrollment IDI20110510000624
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.

Areas of Expertise CMS Part B claims 5

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.

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.
143 services53 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.
92 services58 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
27 services27 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.
17 services13 patients
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212
This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.
13 services12 patients

Hospital Affiliations CMS Care Compare 2

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

Jefferson Stratford Hospital

Acute Care Hospitals · Stratford, NJ
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310086
Location18 East Laurel RoadStratford, NJ 08084 · Camden County
Emergency services Birthing friendly

Thomas Jefferson University Hospital

Acute Care Hospitals · Philadelphia, PA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390174
Location111 South 11th StreetPhiladelphia, PA 19107 · Philadelphia County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19107 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
$180.99 typical visit price
range $59.88 – $180.99
Typical copayment $45.24 (range $14.97 – $45.24)
Most-billed visit code 99205
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.

Other Providers at the Same Location NPPES 8

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

Nurse Practitioner (Family)
925 CHESTNUT ST STE 320A
PHILADELPHIA, PA 19107
Internal Medicine (Medical Oncology)
925 CHESTNUT ST STE 320A
PHILADELPHIA, PA 19107
Internal Medicine
925 CHESTNUT ST STE 320A
PHILADELPHIA, PA 19107
Internal Medicine (Medical Oncology)
925 CHESTNUT ST STE 320A
PHILADELPHIA, PA 19107
Internal Medicine (Hematology & Oncology)
925 CHESTNUT ST STE 320A
PHILADELPHIA, PA 19107
Internal Medicine (Hematology & Oncology)
925 CHESTNUT ST STE 320A
PHILADELPHIA, PA 19107
Nurse Practitioner
925 CHESTNUT ST STE 320A
PHILADELPHIA, PA 19107
Internal Medicine (Medical Oncology)
925 CHESTNUT ST STE 320A
PHILADELPHIA, PA 19107

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 Tester's NPI number?

The NPI number for William Tester is 1386613693. It was assigned to this individual provider in the NPPES registry on March 17, 2006.

Where is William Tester located?

William Tester practices at 925 Chestnut St Ste 320A, Philadelphia, PA 19107. The listed phone number is (215) 955-8874.

What is William Tester's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is William Tester enrolled in Medicare?

Yes. William Tester 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.

Is William Tester affiliated with any hospitals?

According to CMS data, William Tester is affiliated with Jefferson Stratford Hospital and Thomas Jefferson University Hospital.

When was this NPI record last updated?

The NPPES record for William Tester was last updated on November 9, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.