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DR. MICHAEL GWYNNE JOHNSTON M.D.
NPI 1275515652
Surgery in Portsmouth, VA

Active since November 19, 2005PECOS Enrolled
620 JOHN PAUL JONES CIR, NMCP - DEPT OF GENERAL SURGERY, PORTSMOUTH, VA 23708(757) 953-2516(757) 953-0845 Get Directions Write a Review

NPPES record last updated: June 27, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 27, 2024, Jan 3, 2023, Oct 14, 2022 and 2 more (5 updates tracked since 2021).

About Dr. Michael Gwynne Johnston M.d. NPPES

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

DR. MICHAEL GWYNNE JOHNSTON M.D. (NPI 1275515652) is an individual surgery provider in Portsmouth, Virginia, licensed in Virginia (0101236832) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1275515652
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameDR. MICHAEL GWYNNE JOHNSTONCredential: M.D.
Location Address620 JOHN PAUL JONES CIR, NMCP - DEPT OF GENERAL SURGERYPortsmouth, VA 23708-2111
Mailing Address2790 Godwin Blvd Ste 305Suffolk, VA 23434-8158 · (757) 934-4222 · Fax (757) 934-4111
Phone(757) 953-2516
Fax(757) 953-0845
Sole ProprietorNo
Enumeration DateNovember 19, 2005
Last NPPES UpdateJune 27, 20245 updates tracked since enumeration
NPPES CertifiedJune 27, 2024
✔ NPI 1275515652 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in VA · 0101236832
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
620 JOHN PAUL JONES CIR, Portsmouth, VA 23708
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Other Names 1

Other Name (5)Michael G Johnston M.d.

Secondary Practice Locations 2

Location 12790 Godwin Blvd Ste 305Suffolk, VA 23434-8158 · Phone (757) 934-4222 · Fax (757) 934-4111
Location 22232 Wilborn Ave Ste CSouth Boston, VA 24592-1662 · Phone (434) 517-3910

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Michael Gwynne Johnston M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

2

Medicare enrollment records show Michael Johnston reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Sentara Medical Group
8.1 mi
Family Medicine
824 N MILITARY HWY STE 100
Norfolk, VA 23502
  • Reassigned Medicare billing, Virginia enrollment
  • 1,901 clinicians in this Medicare group
NPI 1265485270 (757) 252-2900
Dominion Health Medical Assoc
117 mi
Legal Medicine
946 N. MAIN ST
Chase City, VA 23924
  • Reassigned Medicare billing, Virginia enrollment
  • 82 clinicians in this Medicare group
NPI 1689772238 (434) 372-5141

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 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.

New Patient
$86.88 typical visit price
range $56.19 – $170.30
Typical copayment $21.72 (range $14.04 – $42.57)
Most-billed visit code 99203
Established Patient
$70.08 typical visit price
range $18.07 – $138.91
Typical copayment $17.52 (range $4.51 – $34.72)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

MEREDITH TVERDOSI CRNA
Nurse Anesthetist, Certified Registered
620 JOHN PAUL JONES CIR
PORTSMOUTH, VA 23708
Portsmouth City (757) 953-3238
ERIC FRANCIS SULAVA
Emergency Medicine
620 JOHN PAUL JONES CIR, NAVAL MEDICAL CENTER PORTSMOUTH
PORTSMOUTH, VA 23708
Portsmouth City (757) 953-0669
MRS. TIFFNY KUPER RHH
Dental Hygienist
620 JOHN PAUL JONES CIR
PORTSMOUTH, VA 23708
Portsmouth City (757) 953-2711
DR. LAKEISHA GOODE PHARMD
Pharmacist
620 JOHN PAUL JONES CIR
PORTSMOUTH, VA 23708
Portsmouth City (757) 953-7462
JASMINE WOOD MD
Surgery
620 JOHN PAUL JONES CIR
PORTSMOUTH, VA 23708
Portsmouth City (757) 953-1895
NICHOLAS FANSELOW
General Practice
620 JOHN PAUL JONES CIR
PORTSMOUTH, VA 23708
Portsmouth City (757) 953-0669
DR. DAVID JESSEN MD
Military Health Care Provider
620 JOHN PAUL JONES CIR
PORTSMOUTH, VA 23708
Portsmouth City (757) 953-2518
DR. DANIEL VERNON UNGER M.D.
Orthopaedic Surgery
620 JOHN PAUL JONES CIR, NAVAL MEDICAL CENTER
PORTSMOUTH, VA 23708
Portsmouth City (757) 953-1888

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 Michael Johnston's NPI number?

The NPI number for Michael Johnston is 1275515652. It was assigned to this individual provider in the NPPES registry on November 19, 2005. The provider is also known as Michael G Johnston M.D..

Where is Michael Johnston located?

Michael Johnston practices at 620 John Paul Jones Cir Nmcp - Dept Of General Surgery, Portsmouth, VA 23708. The listed phone number is (757) 953-2516.

What is Michael Johnston's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Michael Johnston enrolled in Medicare?

Yes. Michael Johnston is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Michael Johnston's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Johnston reassigns Medicare benefits to 2 organizations: Sentara Medical Group (Norfolk, VA) and Dominion Health Medical Assoc (Chase City, VA). 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 Michael Johnston'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 Michael Johnston was last updated on June 27, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.