MICHELLE GRISILLO BISHOP
NPI 1659766053
Internal Medicine in Newark, DE

Active since April 02, 2015PECOS EnrolledAccepts Medicare Assignment
4755 OGLETOWN STANTON RD STE 5A43, NEWARK, DE 19718(302) 623-0188 Get Directions Write a Review

NPPES record last updated: August 15, 2018. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Aug 15, 2018, May 3, 2018 (2 updates tracked since 2018).

About Michelle Grisillo Bishop NPPES

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

MICHELLE GRISILLO BISHOP (NPI 1659766053) is an individual internal medicine provider in Newark, Delaware, licensed in Delaware (C2-0012734) and active in the NPI registry since April 2015. She is enrolled in Medicare PECOS, maintains a secondary practice location in Farmington, and is a graduate of Other (2015).

NPPES Registry Identity

NPI1659766053
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameMICHELLE GRISILLO BISHOP
Location Address4755 OGLETOWN STANTON RD STE 5A43Newark, DE 19718
Mailing Address4755 Ogletown Stanton Rd Ste 5a43Newark, DE 19718-2200
Sole ProprietorNo
Medical School CMSOtherGraduated 2015
Enumeration DateApril 2, 2015
Last NPPES UpdateAugust 15, 20182 updates tracked since enumeration
✔ NPI 1659766053 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in DE · C2-0012734
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.
4755 OGLETOWN STANTON RD STE 5A43, Newark, DE 19718

Secondary Practice Location 1

Location 1263 Farmington AveFarmington, CT 06032-8021 · Phone (860) 679-4477 · Fax (860) 679-1025

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

Michelle Grisillo Bishop 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 ID4486956281
PECOS Enrollment IDI20181128002485
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 Michelle Bishop reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Hospitalist
200 HYGEIA DR, SUITE 2100
Newark, DE 19713
  • Reassigned Medicare billing, Delaware enrollment
  • 460 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 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.

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.
457 services263 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
113 services113 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.
90 services78 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.
80 services79 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.
33 services33 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19718 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
$131.15 typical visit price
range $57.12 – $173.08
Typical copayment $32.78 (range $14.28 – $43.27)
Most-billed visit code 99204
Established Patient
$100.68 typical visit price
range $18.36 – $141.05
Typical copayment $25.17 (range $4.59 – $35.26)
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

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

Standard wheelchair K0001
DME-Wheelchairs · category DD000N
2 suppliers16 claims16 services$13.94 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.

Internal Medicine (Infectious Disease)
4755 OGLETOWN STANTON RD STE 5A43
NEWARK, DE 19718
Internal Medicine
4755 OGLETOWN STANTON RD STE 5A43
NEWARK, DE 19718
Nurse Practitioner
4755 OGLETOWN STANTON RD STE 5A43
NEWARK, DE 19718
Physician Assistant
4755 OGLETOWN STANTON RD STE 5A43
NEWARK, DE 19718
Internal Medicine
4755 OGLETOWN STANTON RD STE 5A43
NEWARK, DE 19718
Internal Medicine
4755 OGLETOWN STANTON RD STE 5A43
NEWARK, DE 19718
Internal Medicine
4755 OGLETOWN STANTON RD STE 5A43
NEWARK, DE 19718
Internal Medicine
4755 OGLETOWN STANTON RD STE 5A43
NEWARK, DE 19718

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 Michelle Bishop's NPI number?

The NPI number for Michelle Bishop is 1659766053. It was assigned to this individual provider in the NPPES registry on April 2, 2015.

Where is Michelle Bishop located?

Michelle Bishop practices at 4755 Ogletown Stanton Rd Ste 5a43, Newark, DE 19718. The listed phone number is (302) 623-0188.

What is Michelle Bishop's specialty?

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

Is Michelle Bishop enrolled in Medicare?

Yes. Michelle Bishop 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 Michelle Bishop's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michelle Bishop reassigns Medicare benefits to Christiana Care Health Services Inc (Newark, DE). 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 Michelle Bishop'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 Michelle Bishop was last updated on August 15, 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.