MR. JOHN A LONG JR. MD
NPI 1821062704
Radiology - Diagnostic Radiology in Kensington, MD
About Mr. John A Long Jr. Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. JOHN A LONG JR. MD (NPI 1821062704) is an individual diagnostic radiology provider in Kensington, Maryland, licensed in Maryland (D22299) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mr. John A Long Jr. Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show John Long reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Glen Burnie, MD 21061
- Reassigned Medicare billing, Maryland enrollment
- 1,253 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20895 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
KENSINGTON, MD 20895
KENSINGTON, MD 20895
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 Long's NPI number?
The NPI number for John Long is 1821062704. It was assigned to this individual provider in the NPPES registry on February 15, 2006.
Where is John Long located?
John Long practices at 10810 Connecticut Ave Kaiser Permanente Kensington Medical Center, Kensington, MD 20895. The listed phone number is (301) 929-7100.
What is John Long's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is John Long enrolled in Medicare?
Yes. John Long is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for John Long's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Long reassigns Medicare benefits to Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc (Glen Burnie, MD). 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 Long'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 Long was last updated on December 6, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Mr. John A Long Jr., MD · NPI 1821062704
Diagnostic Radiology physician in Kensington, Maryland. Individual provider, active in the CMS NPPES registry since February 15, 2006.
## Identity
- **NPI:** 1821062704 (Entity type: Individual)
- **Enumerated:** February 15, 2006
- **Primary specialty:** Radiology - Diagnostic Radiology · taxonomy 2085R0202X
- **State license:** D22299 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 10810 CONNECTICUT AVE, KAISER PERMANENTE KENSINGTON MEDICAL CENTER, Kensington, MD 20895-2138
- **Phone:** (301) 929-7100
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc (NPI 1285752121, Glen Burnie, MD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 6, 2012
- **Other identifiers:** Medicare UPIN A45625; Medicaid 7200617 (VA); Medicare ID-Type Unspecified 000N3V18 (VA)
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Source: [NPI Profile](https://npiprofile.com/npi/1821062704) · Data from the CMS NPPES public registry.