DR. JOHN PATRICK WILLOUGHBY M.D.
NPI 1962847533
Internal Medicine - Pulmonary Disease in Shelby Twp, MI
About Dr. John Patrick Willoughby M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN PATRICK WILLOUGHBY M.D. (NPI 1962847533) is an individual pulmonary disease provider in Shelby Twp, Michigan, licensed in Michigan (4301116987) and active in the NPI registry since May 2013. He is enrolled in Medicare PECOS, is affiliated with Henry Ford Macomb Hospital, and is a graduate of Michigan State University College Of Human Medicine (2013).
NPPES Registry Identity
Specialties & Licenses
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. John Patrick Willoughby 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.
Medicare Billing Reassignment
Medicare enrollment records show John Willoughby reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Shelby Twp, MI 48315
- Reassigned Medicare billing, Michigan enrollment
- 22 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 18
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.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Henry Ford Macomb Hospital
Acute Care Hospitals · Clinton Township, MIHenry Ford Health Hospital
Acute Care Hospitals · Detroit, MIBeaumont Hospital - Grosse Pointe
Acute Care Hospitals · Grosse Pointe, MIMclaren Macomb
Acute Care Hospitals · Mount Clemens, MIBeaumont Hospital, Troy
Acute Care Hospitals · Troy, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48315 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 9
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
SHELBY TOWNSHIP, MI 48315
SHELBY TOWNSHIP, MI 48315
SHELBY TOWNSHIP, MI 48315
SHELBY TOWNSHIP, MI 48315
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 Willoughby's NPI number?
The NPI number for John Willoughby is 1962847533. It was assigned to this individual provider in the NPPES registry on May 8, 2013.
Where is John Willoughby located?
John Willoughby practices at 50505 Schoenherr Rd Ste 290, Shelby Twp, MI 48315. The listed phone number is (586) 314-0080.
What is John Willoughby's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.
Is John Willoughby enrolled in Medicare?
Yes. John Willoughby 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 John Willoughby's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Willoughby reassigns Medicare benefits to Pulmonary & Critical Care Associates PC (Shelby Twp, MI). 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 John Willoughby's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Willoughby accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 2 other insurers list John Willoughby 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 John Willoughby affiliated with any hospitals?
According to CMS data, John Willoughby is affiliated with Henry Ford Macomb Hospital, Henry Ford Health Hospital, Beaumont Hospital - Grosse Pointe, Mclaren Macomb and Beaumont Hospital, Troy.
When was this NPI record last updated?
The NPPES record for John Willoughby 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.