Aislinn Williams, M.D., PH.D.
NPI 1235440249 · Psychiatry Physician · Iowa City, IA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Aislinn Williams, M.D., PH.D. is a Psychiatry Physician provider in Iowa City, IA (NPI 1235440249).
Provider details
- NPI number
- 1235440249
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., PH.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MD-44579 (IA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
82 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 54 | $73 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 28 | $45 |
Typical Medicare-allowed amounts for these services range $45–$73 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (1)
- 4250 Plymouth RdAnn Arbor, MI 48109-2700Phone: (734) 764-6443
Registry dates
- Enumerated
- 2010-06-24
- Last updated
- 2018-03-17
Frequently asked questions
- What is Aislinn Williams's NPI number?
- Aislinn Williams's National Provider Identifier (NPI) is 1235440249, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Aislinn Williams's specialty?
- Aislinn Williams is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Aislinn Williams located?
- Aislinn Williams's practice location on file with NPPES is 200 Hawkins Dr, Iowa City, IA 52242-1009.
- What is Aislinn Williams's phone number?
- The practice phone number listed in the NPPES registry for Aislinn Williams is (319) 335-2434.
- Does Aislinn Williams accept Medicare?
- Aislinn Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Aislinn Williams's NPI active?
- Yes — Aislinn Williams's NPI (1235440249) is active in the NPPES registry as of the last update on 2018-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.