Doctor profile · Federal record
Dr. Mark Johnson, M.D.
Family Medicine Physician (CMS: Family Practice) · Washington, DC
- NPI 1659462190
- Accepts Medicare
- 47 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
2041 Georgia Ave Nw # T3200
Washington, DC 20060
(202) 865-4440
fax (202) 865-3214 - Additional location
-
90 Bergen St, Lower Level Suite 300
Newark, NJ 071032425
(973) 972-2111
fax (973) 972-2754 - Mailing address
-
2041 Georgia Nw Ave Tower 6101
Washington, DC 200600001
Credentials & registration
- NPI registered
- September 2006 — 20 yrs on file
- Profile last updated
- November 8, 2019
- Year of graduation
- 1979 — 47 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- New Jersey #25MA05722100
- Medicaid
- NJ #5128803
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1659462190. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
12
Distinct HCPCS
1
Medicare allowed
$1,236
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 12 | 12 | $103 |
In context: peer comparison
Among 63 peers in Washington Family Medicine Physician, average services per provider: 95. This provider delivers 0.1× the peer median.Open Payments
Industry payments received
All-time total
$21,094
Transactions
4
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Novo Nordisk INC | 3 | $21,040.70 | |
| Exact Sciences Corporation | 1 | $53.44 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
26
Patients
0
Total drug cost
$465
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Metformin Hcl | Generic | 15 | 0 | $341 |
| Atorvastatin Calcium | Generic | 11 | 0 | $124 |
Frequently asked questions
What is Dr. Mark Johnson's medical specialty?
Dr. Mark Johnson practices Family Medicine Physician in Washington, DC.
Where does Dr. Mark Johnson practice?
Dr. Mark Johnson practices at 2041 Georgia Ave Nw # T3200, Washington, DC 20060. Office phone: 2028654440.
What is Dr. Mark Johnson's NPI?
Dr. Mark Johnson's National Provider Identifier (NPI) is 1659462190, issued by NPPES.
Does Dr. Mark Johnson accept Medicare assignment?
Yes. Dr. Mark Johnson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Johnson commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.