MARK STEPHEN JOHNSON MD
NPI 1235142357
Surgery in Portsmouth, VA
About Mark Stephen Johnson Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK STEPHEN JOHNSON MD (NPI 1235142357) is an individual surgery provider in Portsmouth, Virginia, licensed in Virginia (0101248712) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Chesapeake General Hospital, and maintains 6 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 6
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
Mark Stephen Johnson Md 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.
Areas of Expertise CMS Part B claims 2
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Chesapeake General Hospital
Acute Care Hospitals · Chesapeake, VAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 23708 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
PORTSMOUTH, VA 23708
PORTSMOUTH, VA 23708
PORTSMOUTH, VA 23708
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 Mark Johnson's NPI number?
The NPI number for Mark Johnson is 1235142357. It was assigned to this individual provider in the NPPES registry on August 14, 2006.
Where is Mark Johnson located?
Mark Johnson practices at 620 John Paul Jones Cir, Portsmouth, VA 23708. The listed phone number is (757) 953-2154.
What is Mark Johnson's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Mark Johnson enrolled in Medicare?
Yes. Mark 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.
Is Mark Johnson affiliated with any hospitals?
According to CMS data, Mark Johnson is affiliated with Chesapeake General Hospital.
When was this NPI record last updated?
The NPPES record for Mark Johnson was last updated on September 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Mark Stephen Johnson, MD · NPI 1235142357
Surgery physician in Portsmouth, Virginia. Individual provider, active in the CMS NPPES registry since August 14, 2006.
## Identity
- **NPI:** 1235142357 (Entity type: Individual)
- **Enumerated:** August 14, 2006
- **Primary specialty:** Surgery · taxonomy 208600000X
- **State license:** 0101248712 (Virginia)
- **Sole proprietor:** No
## Practice location
- **Address:** 620 JOHN PAUL JONES CIR, Portsmouth, VA 23708-2111
- **Phone:** (757) 953-2154
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** University Of Massachusetts Medical School, class of 2006
## Record status
- **NPPES last updated:** September 30, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1235142357) · Data from the CMS NPPES public registry.