Doctor profile · Federal record
Dr. Mara Williams, PA-C
Physician Assistant · Marriage & Family Therapist · Madison, WI
- NPI 1770952095
- Accepts Medicare
- MIPS 93.7 / 100 · 2023
- 4 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
8025 Excelsior Dr, #110
Madison, WI 537171900
(608) 663-6154 - Mailing address
-
2840 Index RD
Fitchburg, WI 537133117
Credentials & registration
- NPI registered
- September 2015 — 11 yrs on file
- Profile last updated
- July 21, 2022
- Year of graduation
- 2022 — 4 yrs since
- Specialty taxonomy
- 363A00000X — NUCC code
- State license (1)
- Wisconsin #5858
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1770952095. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
210
Distinct HCPCS
8
Medicare allowed
$24,840
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 74 | 52 | $102 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 34 | 34 | $166 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 28 | 23 | $140 | |
90935 |
Hemodialysis procedure with physician evaluation | 21 | 11 | $57 | |
90961 |
Dialysis services, 2-3 physician visits per month (20 years or older) | 17 | 15 | $235 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 13 | 13 | $72 | |
36415 |
Insertion of needle into vein for collection of blood sample | 12 | 12 | $8 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 11 | 11 | $133 |
In context: peer comparison
Among 114 peers in Madison Physician Assistant, average services per provider: 113. This provider delivers 1.9× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
744
Patients
242
Total drug cost
$88,909
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Furosemide | Generic | 125 | 49 | $1,550 |
| Losartan Potassium | Generic | 73 | 34 | $1,035 |
| Amlodipine Besylate | Generic | 70 | 30 | $754 |
| Calcitriol | Generic | 61 | 15 | $910 |
| Lisinopril | Generic | 59 | 23 | $728 |
| Sevelamer Carbonate | Generic | 54 | 23 | $4,517 |
| Hydralazine Hcl | Generic | 52 | 15 | $938 |
| Allopurinol | Generic | 40 | 13 | $194 |
| Metoprolol Succinate | Generic | 40 | 0 | $513 |
| Famotidine | Generic | 32 | 14 | $226 |
Hospital affiliations
Frequently asked questions
What is Dr. Mara Williams's medical specialty?
Dr. Mara Williams practices Physician Assistant in Madison, WI.
Where does Dr. Mara Williams practice?
Dr. Mara Williams practices at 8025 Excelsior Dr, Madison, WI 537171900. Office phone: 6086636154.
What is Dr. Mara Williams's NPI?
Dr. Mara Williams's National Provider Identifier (NPI) is 1770952095, issued by NPPES.
Does Dr. Mara Williams accept Medicare assignment?
Yes. Dr. Mara Williams accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mara Williams commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99205); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.