DR. WILLIAM PRESTON TOMPKINS IV MD
NPI 1992324842
Student in an Organized Health Care Education/Training Program in Philadelphia, PA

Active since April 10, 2020PECOS EnrolledAccepts Medicare Assignment
3701 MARKET ST, PHILADELPHIA, PA 19104(215) 349-5200(215) 615-3997 Get Directions Write a Review

NPPES record last updated: April 10, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. William Preston Tompkins Iv Md NPPES

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

DR. WILLIAM PRESTON TOMPKINS IV MD (NPI 1992324842) is an individual student in an organized health care education/training program in Philadelphia, Pennsylvania and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS, is affiliated with Hospital Of Univ Of Pennsylvania, and is a graduate of Other (2020).

NPPES Registry Identity

NPI1992324842
Entity TypeIndividualMale
Primary Taxonomy390200000X
Provider Legal NameDR. WILLIAM PRESTON TOMPKINS IVCredential: MD
Location Address3701 MARKET STPhiladelphia, PA 19104-5502
Mailing Address3400 Spruce StPhiladelphia, PA 19104-4238 · (215) 349-5200 · Fax (215) 615-3997
Fax(215) 615-3997
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateApril 10, 2020
NPPES CertifiedApril 10, 2020
✔ NPI 1992324842 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Taxonomy Code390200000X
Definition
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
3701 MARKET ST, Philadelphia, PA 19104

Accepted 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

Dr. William Preston Tompkins Iv 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 ID9234595919
PECOS Enrollment IDI20230523001237
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 William Tompkins reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Internal Medicine
51 N 39TH ST
Philadelphia, PA 19104
  • Reassigned Medicare billing, Pennsylvania enrollment
  • Also billed through NPI 1679677975 (Pennsylvania)
  • 752 clinicians in this Medicare group

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 4

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 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.
134 services59 patients
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.
99 services46 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.
18 services18 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.
11 services11 patients

Hospital Affiliations CMS Care Compare

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

Hospital Of Univ Of Pennsylvania

Acute Care Hospitals · Philadelphia, PA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390111
Location34th & Spruce StsPhiladelphia, PA 19104 · Philadelphia County
Emergency services Birthing friendly

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.

Student in an Organized Health Care Education/Training Program
3701 MARKET ST
PHILADELPHIA, PA 19104
Clinic/Center (Ambulatory Fertility Facility)
3701 MARKET ST
PHILA, PA 19104
Nurse Practitioner (Women's Health)
3701 MARKET ST, 3RD FLOOR
PHILADELPHIA, PA 19104
Nurse Practitioner (Obstetrics & Gynecology)
3701 MARKET ST, 8TH FL - REPRODUCTIVE RESEARCH
PHILADELPHIA, PA 19104
Internal Medicine
3701 MARKET ST, 7TH FL STE 741
PHILADELPHIA, PA 19104
Internal Medicine
3701 MARKET ST, STE 640 6TH FL
PHILADELPHIA, PA 19104
Internal Medicine (Rheumatology)
3701 MARKET ST, 6TH FLOOR, SUITE 640
PHILADELPHIA, PA 19104
Internal Medicine
3701 MARKET ST, STE 640
PHILADELPHIA, PA 19104

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 Tompkins's NPI number?

The NPI number for William Tompkins is 1992324842. It was assigned to this individual provider in the NPPES registry on April 10, 2020.

Where is William Tompkins located?

William Tompkins practices at 3701 Market St, Philadelphia, PA 19104. The listed phone number is (215) 349-5200.

What is William Tompkins's specialty?

The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.

Is William Tompkins enrolled in Medicare?

Yes. William Tompkins 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 William Tompkins's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Tompkins 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 William Tompkins's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Tompkins accept?

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

According to CMS data, William Tompkins is affiliated with Hospital Of Univ Of Pennsylvania.

When was this NPI record last updated?

The NPPES record for William Tompkins was last updated on April 10, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.