1. Home
  2. Directory
  3. Minnesota
  4. St Louis Park
  5. Psychiatry Neurology
  6. NPI Profile

DR. ALLISON L WILLIAMS MD
NPI 1801882436
Psychiatry & Neurology - Psychiatry in St Louis Park, MN

Active since September 20, 2005PECOS EnrolledAccepts Medicare Assignment
1665 UTICA AVE S STE 100, ST LOUIS PARK, MN 55416(952) 541-2500(952) 541-2539 Get Directions Write a Review

NPPES record last updated: May 24, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 24, 2021, Nov 18, 2016 (2 updates tracked since 2016).

About Dr. Allison L Williams Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ALLISON L WILLIAMS MD (NPI 1801882436) is an individual psychiatry provider in St Louis Park, Minnesota, licensed in Minnesota (57144) and active in the NPI registry since September 2005. She is enrolled in Medicare PECOS and is a graduate of University Of Iowa, Rj & L Carver College Of Medicine (2001).

NPPES Registry Identity

NPI1801882436
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameDR. ALLISON L WILLIAMSCredential: MD
Location Address1665 UTICA AVE S STE 100St Louis Park, MN 55416-3476
Mailing Address8170 33rd Ave S, Ms 21110qBloomington, MN 55425-4516
Phone(952) 541-2500
Fax(952) 541-2539
Sole ProprietorNo
Medical School CMSUniversity Of Iowa, Rj & L Carver College Of MedicineGraduated 2001
Enumeration DateSeptember 20, 2005
Last NPPES UpdateMay 24, 20212 updates tracked since enumeration
NPPES CertifiedMay 24, 2021
✔ NPI 1801882436 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
Licenses✔ Licensed in MN · 57144✔ Licensed in IA · 35487
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
1665 UTICA AVE S STE 100, St Louis Park, MN 55416
Open in Google Maps ↗

Other Names 1

Former Name (1)Allison L Bertness

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include HealthPartners.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Allison L Williams Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2365421062
PECOS Enrollment IDI20130729000031
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
149 services55 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
27 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 55416 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$168.28 typical visit price
range $56.00 – $168.28
Typical copayment $42.07 (range $14.00 – $42.07)
Most-billed visit code 99205
Established Patient
$69.74 typical visit price
range $18.32 – $138.04
Typical copayment $17.43 (range $4.58 – $34.51)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

AARON MEANS
Psychologist (Clinical)
1665 UTICA AVE S STE 100
SAINT LOUIS PARK, MN 55416
Hennepin County (952) 541-2500
ANDERS KARSTEN OSTHUS DO
Family Medicine
1665 UTICA AVE S STE 100
ST LOUIS PARK, MN 55416
Hennepin County (952) 541-2500
RACHEL KATHLEEN SYRING LGSW
Social Worker (Clinical)
1665 UTICA AVE S STE 100
ST LOUIS PARK, MN 55416
Hennepin County (952) 541-2682
DR. STEPHANIE ALDRIN MD
Family Medicine
1665 UTICA AVE S STE 100
ST LOUIS PARK, MN 55416
Hennepin County (952) 541-2500
AGNES DIZON HILL D.M.D.
Dentist (General Practice)
1665 UTICA AVE S STE 100
ST LOUIS PARK, MN 55416
Hennepin County (952) 541-2700
DR. LAURA ZONTELLI O.D.
Optometrist
1665 UTICA AVE S STE 100
ST LOUIS PARK, MN 55416
Hennepin County (952) 541-2577
CAROLA ANDREA JERNEY M.D.
Family Medicine
1665 UTICA AVE S STE 100
SAINT LOUIS PARK, MN 55416
Hennepin County (952) 541-2500
LORI ANN GEDDES OD
Optometrist
1665 UTICA AVE S STE 100
SAINT LOUIS PARK, MN 55416
Hennepin County (952) 541-2500

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Allison Williams's NPI number?

The NPI number for Allison Williams is 1801882436. It was assigned to this individual provider in the NPPES registry on September 20, 2005. The provider is also known as Allison L Bertness.

Where is Allison Williams located?

Allison Williams practices at 1665 Utica Ave S Ste 100, St Louis Park, MN 55416. The listed phone number is (952) 541-2500.

What is Allison Williams's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Allison Williams enrolled in Medicare?

Yes. Allison Williams is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Allison Williams accept?

Health plans from HealthPartners list Allison Williams as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Allison Williams was last updated on May 24, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.