Doctor profile · Federal record
Dr. Mark Mounajjed, MD
Infectious Disease Physician (CMS: Infectious Disease) · Critical Care Medicine (Internal Medicine) Physician · Infectious Disease Physician · Hospitalist Physician · Madison, WI
- NPI 1891789897
- Accepts Medicare
- 33 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
600 Highland Ave
Madison, WI 537920001
(608) 263-0946
fax (608) 833-6965 - Additional location
-
1211 Fish Hatchery RD
Madison, WI 537151909
(608) 252-8000
fax (608) 283-7318 - Additional location
-
1506 S Oneida St
Appleton, WI 549151305
(920) 738-2000 - Mailing address
-
7974 Uw Health CT
Middleton, WI 535625531
Credentials & registration
- NPI registered
- September 2005 — 21 yrs on file
- Profile last updated
- December 12, 2024
- Year of graduation
- 1993 — 33 yrs since
- Specialty taxonomy
- 207RI0200X — NUCC code
- State licenses (2)
- Wisconsin #45870 · Wisconsin #45870-20
- Medicaid
- WI #1891789897
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1891789897. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
14,346
Distinct HCPCS
10
Medicare allowed
$481,872
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J3380 |
Injection, vedolizumab, 1 mg | 6,600 | 11 | $22 | |
J1561 |
Injection, immune globulin, (gamunex-c/gammaked), non-lyophilized (e.g., liquid), 500 mg | 2,890 | 13 | $48 | |
Q5104 |
Injection, infliximab-abda, biosimilar, (renflexis), 10 mg | 2,824 | 39 | $35 | |
J0696 |
Injection, ceftriaxone sodium, per 250 mg | 544 | 23 | $1 | |
96365 |
Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less | 265 | 104 | $61 | |
J3489 |
Injection, zoledronic acid, 1 mg | 210 | 42 | $9 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 132 | 100 | $114 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 116 | 60 | $171 | |
J1335 |
Injection, ertapenem sodium, 500 mg | 86 | 12 | $13 | |
96413 |
Administration of chemotherapy into vein, 1 hour or less | 79 | 52 | $125 |
In context: peer comparison
Among 16 peers in Madison Infectious Disease Physician, average services per provider: 506. This provider delivers 28× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
236
Patients
63
Total drug cost
$79,404
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 49 | 24 | $1,237 |
| Ciprofloxacin Hcl | Generic | 34 | 11 | $1,053 |
| Cefadroxil | Generic | 27 | 14 | $830 |
| Doxycycline Hyclate | Generic | 23 | 14 | $1,103 |
| Penicillin V Potassium | Generic | 19 | 0 | $198 |
| Amoxicillin | Generic | 15 | 0 | $136 |
| Biktarvy (Bictegrav/Emtricit/Tenofov Ala) | Brand | 14 | 0 | $71,930 |
| Methenamine Hippurate | Generic | 14 | 0 | $894 |
| Rifampin | Generic | 14 | 0 | $909 |
| Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) | Brand | 14 | 0 | $396 |
Hospital affiliations
Frequently asked questions
What is Dr. Mark Mounajjed's medical specialty?
Dr. Mark Mounajjed practices Infectious Disease Physician in Madison, WI.
Where does Dr. Mark Mounajjed practice?
Dr. Mark Mounajjed practices at 600 Highland Ave, Madison, WI 537920001. Office phone: 6082630946.
What is Dr. Mark Mounajjed's NPI?
Dr. Mark Mounajjed's National Provider Identifier (NPI) is 1891789897, issued by NPPES.
Does Dr. Mark Mounajjed accept Medicare assignment?
Yes. Dr. Mark Mounajjed accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Mounajjed commonly perform?
Top Medicare-reported procedures in 2023: Injection, vedolizumab, 1 mg (HCPCS J3380); Injection, immune globulin, (gamunex-c/gammaked), non-lyophilized (e.g., liquid), 500 mg (HCPCS J1561); Injection, infliximab-abda, biosimilar, (renflexis), 10 mg (HCPCS Q5104). Source: CMS Medicare Physician & Other Practitioners file.