DR. WILLIAM RAINEY JOHNSON M.D.
NPI 1427443571
Internal Medicine - Cardiovascular Disease in Bethesda, MD
About Dr. William Rainey Johnson M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM RAINEY JOHNSON M.D. (NPI 1427443571) is an individual cardiovascular disease provider in Bethesda, Maryland, licensed in Virginia (0101268523) and active in the NPI registry since April 2015. He is enrolled in Medicare PECOS and is a graduate of Perelman School Of Med At The University Of Pennsylvania (2015).
NPPES Registry Identity
Specialties & Licenses 2
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
Dr. William Rainey Johnson 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20889 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 2
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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BETHESDA, MD 20889
BETHESDA, MD 20889
BETHESDA, MD 20889
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 Johnson's NPI number?
The NPI number for William Johnson is 1427443571. It was assigned to this individual provider in the NPPES registry on April 4, 2015.
Where is William Johnson located?
William Johnson practices at 8901 Wisconsin Ave Building 19, Rm 3607, Bethesda, MD 20889. The listed phone number is (301) 295-0451.
What is William Johnson's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is William Johnson enrolled in Medicare?
Yes. William Johnson 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.
When was this NPI record last updated?
The NPPES record for William Johnson was last updated on June 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 56 days 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.
