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Edit this profileWhere to find Mark S. Johnson, MD
- Portsmouth location main office
620 John Paul Jones Cir, Portsmouth, VA 23708 - Norfolk location
US Marine Forces Command 2775 Forrestal Ave Bldg 33, Norfolk, VA 23515 - Chesapeake location
113 Gainsborough Sq Ste 400, Chesapeake, VA 23320 - Williamsburg location
500 Sentara Cir Ste 202, Williamsburg, VA 23188 - Richmond location
1250 E Marshall St, Richmond, VA 23298
About Dr. Johnson
Based in Portsmouth, VA, Mark S. Johnson, MD is listed in the NPI registry under surgery. Mark graduated from University of Massachusetts Medical School in 2006. Mark is also listed as specializing in surgical critical care and trauma surgery. Medicare claims data shows Mark provided 39 services to 31 patients. The services billed most often include subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes and initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes. NPI 1235142357 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (757) 953-2154
- Email not available
Practice Locations
620 JOHN PAUL JONES CIR
Portsmouth, VA 23708
US Marine Forces Command 2775 Forrestal Ave Bldg 33
Norfolk, VA 23515
113 Gainsborough Sq Ste 400
Chesapeake, VA 23320
500 Sentara Cir Ste 202
Williamsburg, VA 23188
1250 E Marshall St
Richmond, VA 23298
11958 W Broad St
Henrico, VA 23233
1213 E Clay St
Richmond, VA 23298
Conditions Commonly Evaluated or Treated
Within Surgery (Unspecified) generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Breast conditions
Cancer
- Colon cancer
- Esophageal cancer
- Liver cancer
- Neuroendocrine Tumors
- Pancreatic cancer
- Soft-tissue sarcoma
- Stomach cancer
- Thyroid cancer
Colorectal
Digestive
- Abdominal adhesions
- Acid reflux
- Acute pancreatitis
- Bowel obstruction
- Colon polyps
- Diverticulitis
- Gastroparesis
- Peptic ulcer disease
Digestive & blood
Digestive health
- Crohn's disease
- Fecal incontinence
- Perforated bowel
- Severe chronic constipation
- Swallowing difficulties
- Ulcerative colitis
Endocrine
Infections
Lumps & bumps
Lymphatic
Minor surgery
Skin & scars
Skin & soft tissue
Skin cancer
Vascular
Weight & metabolism
Wound care
Wounds
Procedures & services
Most searched procedures
Abdominal
Abdominal surgery
Bariatric
Breast surgery
Cancer
Cancer surgery
Colorectal
- Anal fistula surgery
- Anal Sphincter Repair
- Colon resection
- Hemorrhoid removal
- Ostomy reversal
- Ostomy surgery
- Rectal prolapse repair
- Surgery for chronic anal fissure
Consultations
Diagnostic
Digestive
Digestive health
Endocrine
Infections
Minor surgery
Post-op care
Reconstruction
Skin & soft tissue
- Cyst Removal
- Lipoma removal
- Mole removal
- Pilonidal cyst surgery
- Scar revision surgery
- Skin Tag Removal
Skin cancer
Vascular
Vascular & cancer
Weight loss
Wound care
Wounds
Procedures Most Often Billed to Medicare
39 services · 31 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | Office visit | 99231 |
27 | As often as other peers in Surgery |
| Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | Office visit | 99221 |
12 | Less often than most peers in Surgery |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other general surgeons at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 7
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 19 related providers in 3 groups
Other general surgeons in Portsmouth 7
Same specialty, same city.
Trained at University of Massachusetts Medical School 4
Other providers in the same specialty who trained at the same institution.
Class of 2006 at University of Massachusetts Medical School 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Dr. Johnson's specialty?
Dr. Johnson is a general surgeon in Portsmouth, VA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Surgery”.
NPI registry
Where can I find Dr. Johnson?
Dr. Johnson is listed at 620 John Paul Jones Cir, Portsmouth, VA 23708. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Johnson?
The number on file is (757) 953-2154. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Johnson?
Dr. Johnson's National Provider Identifier is 1235142357. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Johnson's medical education?
Dr. Johnson attended University of Massachusetts Medical School, graduating in 2006. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Johnson have?
Dr. Johnson has 20 years experience. Calculated from a graduation year of 2006, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Johnson known for?
According to Medicare billing data, Dr. Johnson the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Johnson's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Johnson. If this is you, claiming it is free.
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