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Edit this profileWhere to find Mark S. Johnson, M.D.
- Washington location main office
2041 Georgia Ave Nw # T3200, Washington, DC 20060 - Newark location
90 Bergen St, Lower Level Suite 300, Newark, NJ 07103
About Dr. Johnson
Mark S. Johnson, M.D. is a healthcare provider in Washington, DC specializing in family practice. Mark trained at Rutgers New Jersey Medical School, graduating in 1979. Mark is also listed as specializing in family medicine. According to Medicare claims data, the services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. This provider record is associated with NPI 1659462190.
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
- (202) 865-4440
- Email not available
Practice Locations
2041 GEORGIA AVE NW # T3200
Washington, DC 20060
90 Bergen St Lower Level Suite 300
Newark, NJ 07103
Conditions Commonly Evaluated or Treated
Within Family Medicine 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
- Allergies
- Diabetes
- Flu
- Hypothyroidism
- Strep throat
- UTI
Cardiometabolic
Digestive
Genitourinary and reproductive
Musculoskeletal and pain
Neurologic and behavioral
Respiratory and infectious
Skin
Common childhood and ear conditions
Pain & Joints
Procedures & services
Most searched procedures
- Annual physical
- Blood test
- Flu shot
- Medicare wellness visit
- Sick visit
- TB test
- Well-woman exam
Preventive interventions
Screening and testing
- Cholesterol screening
- Depression screening
- Diabetes and prediabetes screening
- EKG
Diagnostic Tests
- COVID-19 testing
- Rapid Strep and Flu Swabs
- Urine Drug Screen
Exams & Screenings
- Camp and School Physical
- Pre-Op Clearance Exam
Foot and Leg Pain
- Toenail Fungus Treatment
Heart & Circulation
Injections
Lungs & Breathing
Minor Procedures
- Burn and Wound Care
- Ingrown toenail removal
- Suture removal
Occupational Health
Office procedures
- Earwax removal
- Incision and drainage of an abscess
- Superficial foreign-body removal
Pain Management
Preventive Care
- Chronic Illness Checkup
- Routine Vaccines
- Travel Vaccines And Consult
Respiratory
Senior Care
Sexual & Reproductive Health
Skin Procedures
- Cyst Removal
- Precancerous Sun Spot Freezing
- Skin Tag Removal
- Wart Removal
Sleep Health
- At-Home Sleep Study Order
Urgent Care Procedures
- Stitches and Laceration Repair
Wellness & Weight
- Weight Management Consult
Women's Health
Procedures Most Often Billed to Medicare
13 services · 12 patients · 1 distinct code
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
13 | Less often than most peers in Family Practice |
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.
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.
Other family practices in Washington 8
Same specialty, same city.
Trained at Rutgers New Jersey Medical School 8
Other providers in the same specialty who trained at the same institution.
More connections — 8 related providers in 1 group
Class of 1979 at Rutgers New Jersey Medical School 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Mark S. Johnson specialize in?
Mark S. Johnson is a family practice in Washington, DC. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Mark S. Johnson located?
Mark S. Johnson is listed at 2041 Georgia Ave Nw # T3200, Washington, DC 20060. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Mark S. Johnson's phone number?
The number on file is (202) 865-4440. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Mark S. Johnson's NPI number?
Mark S. Johnson's National Provider Identifier is 1659462190. 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
Where did Mark S. Johnson train?
Mark S. Johnson attended Rutgers New Jersey Medical School, graduating in 1979. This comes from the CMS National Downloadable File.
CMS public data
How long has Mark S. Johnson been practicing?
Mark S. Johnson has 47 years experience. Calculated from a graduation year of 1979, reported in the CMS National Downloadable File.
CMS public data
What does Mark S. Johnson do most often?
According to Medicare billing data, Mark S. 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
Has Mark S. Johnson confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Mark S. Johnson. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.