JOHN W. ASHBY M.D.
NPI 1740229046
Physical Medicine & Rehabilitation in Wilmington, DE

Active since June 05, 2006PECOS EnrolledAccepts Medicare Assignment
1600 PENNSYLVANIA AVE, SUITE D, WILMINGTON, DE 19806(302) 439-3063(302) 439-3372 Get Directions Write a Review

NPPES record last updated: January 30, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About John W. Ashby M.d. NPPES

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

JOHN W. ASHBY M.D. (NPI 1740229046) is an individual physical medicine & rehabilitation provider in Wilmington, Delaware, licensed in Delaware (C1-0009237) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Wilmington, and is a graduate of Temple University School Of Medicine (1986).

NPPES Registry Identity

NPI1740229046
Entity TypeIndividualMale
Primary Taxonomy208100000X
Provider Legal NameJOHN W. ASHBYCredential: M.D.
Location Address1600 PENNSYLVANIA AVE, SUITE DWilmington, DE 19806-4047
Mailing Address1600 Pennsylvania Ave, Suite DWilmington, DE 19806-4047 · (302) 439-3063 · Fax (302) 439-3372
Fax(302) 439-3372
Sole ProprietorNo
Medical School CMSTemple University School Of MedicineGraduated 1986
Enumeration DateJune 5, 2006
Last NPPES UpdateJanuary 30, 2025
NPPES CertifiedJanuary 30, 2025
✔ NPI 1740229046 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPhysical Medicine & RehabilitationAllopathic & Osteopathic Physicians
Taxonomy Code208100000X
License✔ Licensed in DE · C1-0009237
Definition
Physical medicine and rehabilitation, also referred to as rehabilitation medicine, is the medical specialty concerned with diagnosing, evaluating, and treating patients with physical disabilities. These disabilities may arise from conditions affecting the musculoskeletal system such as neck and back pain, sports injuries, or other painful conditions affecting the limbs, such as carpal tunnel syndrome. Alternatively, the disabilities may result from neurological trauma or disease such as spinal cord injury, head injury or stroke. A physician certified in physical medicine and rehabilitation is often called a physiatrist. The primary goal of the physiatrist is to achieve maximal restoration of physical, psychological, social and vocational function through comprehensive rehabilitation. Pain management is often an important part of the role of the physiatrist. For diagnosis and evaluation, a physiatrist may include the techniques of electromyography to supplement the standard history, physical, x-ray and laboratory examinations. The physiatrist has expertise in the appropriate use of therapeutic exercise, prosthetics (artificial limbs), orthotics and mechanical and electrical devices.
Also ListedPhysical Medicine & Rehabilitation · Spinal Cord Injury MedicineTaxonomy 2081P0004X · License MA55332 (NJ), C1-0009237 (DE)
1600 PENNSYLVANIA AVE, Wilmington, DE 19806

Secondary Practice Location 1

Location 11010 Concord Ave Ste 101Wilmington, DE 19802-3366 · Phone (302) 777-5551

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

John W. Ashby 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 ID7719021559
PECOS Enrollment IDI20151019002018
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 John Ashby reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Physical Medicine & Rehabilitation
1010 CONCORD AVE STE 101
Wilmington, DE 19802
  • Reassigned Medicare billing, Delaware enrollment
  • 5 clinicians in this Medicare group
Chiropractor
1101 TWIN C LN STE 201
Newark, DE 19713
  • Reassigned Medicare billing, Delaware enrollment
  • Medicare enrollment name: Diamond State Chiropractic, P.A.
  • 6 clinicians in this Medicare group
Orthopaedic Surgery
499 COOPER LANDING RD
Cherry Hill, NJ 08002
  • Reassigned Medicare billing, New Jersey enrollment
  • 16 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.

Other Providers at the Same Location NPPES 6

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

Surgery (Plastic and Reconstructive Surgery)
1600 PENNSYLVANIA AVE
WILMINGTON, DE 19806
Physical Medicine & Rehabilitation
1600 PENNSYLVANIA AVE, SUITE 204
WILMINGTON, DE 19806
Plastic Surgery
1600 PENNSYLVANIA AVE
WILMINGTON, DE 19806
Registered Nurse
1600 PENNSYLVANIA AVE
WILMINGTON, DE 19806
Specialist
1600 PENNSYLVANIA AVE, STE D
WILMINGTON, DE 19806
Plastic Surgery
1600 PENNSYLVANIA AVE
WILMINGTON, DE 19806

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 John Ashby's NPI number?

The NPI number for John Ashby is 1740229046. It was assigned to this individual provider in the NPPES registry on June 5, 2006.

Where is John Ashby located?

John Ashby practices at 1600 Pennsylvania Ave Suite D, Wilmington, DE 19806. The listed phone number is (302) 439-3063.

What is John Ashby's specialty?

The primary specialty registered for this NPI is Physical Medicine & Rehabilitation with taxonomy code 208100000X.

Is John Ashby enrolled in Medicare?

Yes. John Ashby 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 John Ashby's services?

According to the CMS Revalidation Reassignment List (October 2026 release), John Ashby reassigns Medicare benefits to 3 organizations: Nowcare LLC (Wilmington, DE), Diamond State Chiropractic PA (Newark, DE) and Regional Orthopedic Professional Association (Cherry Hill, NJ). 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 John Ashby'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 John Ashby was last updated on January 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.