Doctor profile · Federal record
Dr. Allison Williams, PA-C
Physician Assistant · Physician Assistant · Ann Arbor, MI
- NPI 1699402388
- 4 yrs on file
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
1500 E Medical Center Dr
Ann Arbor, MI 481095000
(734) 936-4000 - Additional location
-
901 Harry S Truman Dr N
Largo, MD 207745477
(410) 868-0664 - Mailing address
-
3621 S State St
Ann Arbor, MI 481081633
Credentials & registration
- NPI registered
- August 2022 — 4 yrs on file
- Profile last updated
- October 28, 2024
- Specialty taxonomy
- 363A00000X — NUCC code
- State licenses (2)
- Michigan #5601012405 · Maryland #C08539
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1699402388. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
29
Distinct HCPCS
2
Medicare allowed
$4,131
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 18 | 18 | $162 | |
99284 |
Emergency department visit with moderate level of medical decision making | 11 | 11 | $111 |
In context: peer comparison
Among 139 peers in this city , average services per provider: 53. This provider delivers 0.5× the peer median.Frequently asked questions
What is Dr. Allison Williams's medical specialty?
Dr. Allison Williams practices Physician Assistant in Ann Arbor, MI.
Where does Dr. Allison Williams practice?
Dr. Allison Williams practices at 1500 E Medical Center Dr, Ann Arbor, MI 481095000. Office phone: 7349364000.
What is Dr. Allison Williams's NPI?
Dr. Allison Williams's National Provider Identifier (NPI) is 1699402388, issued by NPPES.
What procedures does Dr. Allison Williams commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.