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HANNAH HENSON WILLIAMS M.D.
NPI 1811383656
Psychiatry & Neurology - Psychiatry in Little Rock, AR

Active since April 08, 2015PECOS EnrolledAccepts Medicare Assignment
4301 W MARKHAM ST # 589, LITTLE ROCK, AR 72205(501) 686-5356 Get Directions Write a Review

NPPES record last updated: August 4, 2021. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Hannah Henson Williams M.d. NPPES

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

HANNAH HENSON WILLIAMS M.D. (NPI 1811383656) is an individual psychiatry provider in Little Rock, Arkansas, licensed in Arkansas (E-12092) and active in the NPI registry since April 2015. She is enrolled in Medicare PECOS and is a graduate of University Of Arkansas College Of Medicine (2015).

NPPES Registry Identity

NPI1811383656
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameHANNAH HENSON WILLIAMSCredential: M.D.
Location Address4301 W MARKHAM ST # 589Little Rock, AR 72205-7101
Mailing AddressPo Box 251420Little Rock, AR 72225-1420 · (501) 686-8000 · Fax (501) 526-5148
Phone(501) 686-5356
Sole ProprietorYes
Medical School CMSUniversity Of Arkansas College Of MedicineGraduated 2015
Enumeration DateApril 8, 2015
Last NPPES UpdateAugust 4, 2021
NPPES CertifiedAugust 4, 2021
✔ NPI 1811383656 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in AR · E-12092
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.
4301 W MARKHAM ST # 589, Little Rock, AR 72205
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Arkansas Blue Cross and Blue Shield, Health Advantage, Octave.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Hannah Henson Williams M.d. 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 ID1850607136
PECOS Enrollment IDI20190708000670
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.

Medicare Billing Reassignment

Medicare enrollment records show Hannah Williams reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

University Of Arkansas For Medical Sciences
Same address
Advanced Practice Midwife
4301 W MARKHAM ST # 783
Little Rock, AR 72205
  • Reassigned Medicare billing, Arkansas enrollment
  • 2,038 clinicians in this Medicare group
NPI 1043372220 (501) 686-8000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 72205 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
$157.74 typical visit price
range $51.36 – $157.74
Typical copayment $39.43 (range $12.84 – $39.43)
Most-billed visit code 99205
Established Patient
$64.56 typical visit price
range $16.16 – $128.77
Typical copayment $16.14 (range $4.04 – $32.19)
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.

CHRYSTAL TARRYN FULLEN PSYD
Clinical Neuropsychologist
4301 W MARKHAM ST # 589
LITTLE ROCK, AR 72205
Pulaski County (501) 526-8284
CAITLIN CAPERTON
Student in an Organized Health Care Education/Training Program
4301 W MARKHAM ST # 589
LITTLE ROCK, AR 72205
Pulaski County (501) 526-8148
KELSEY SPRINKLES
Student in an Organized Health Care Education/Training Program
4301 W MARKHAM ST # 589
LITTLE ROCK, AR 72205
Pulaski County (501) 526-8120
MARGARET SUSAN PICKHARDT MD
Psychiatry & Neurology (Psychiatry)
4301 W MARKHAM ST # 589
LITTLE ROCK, AR 72205
Pulaski County (501) 526-8148
DR. VARENYA NALLUR MD
Student in an Organized Health Care Education/Training Program
4301 W MARKHAM ST # 589
LITTLE ROCK, AR 72205
Pulaski County (501) 526-8148
DR. TARAHN TURNER MD
Student in an Organized Health Care Education/Training Program
4301 W MARKHAM ST # 589
LITTLE ROCK, AR 72205
Pulaski County (501) 526-8148
JOHN WINN
Student in an Organized Health Care Education/Training Program
4301 W MARKHAM ST # 589
LITTLE ROCK, AR 72205
Pulaski County (501) 526-8148
DR. NADIA KHAN MD
Student in an Organized Health Care Education/Training Program
4301 W MARKHAM ST # 589
LITTLE ROCK, AR 72205
Pulaski County (501) 526-8148

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 Hannah Williams's NPI number?

The NPI number for Hannah Williams is 1811383656. It was assigned to this individual provider in the NPPES registry on April 8, 2015.

Where is Hannah Williams located?

Hannah Williams practices at 4301 W Markham St # 589, Little Rock, AR 72205. The listed phone number is (501) 686-5356.

What is Hannah Williams's specialty?

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

Is Hannah Williams enrolled in Medicare?

Yes. Hannah 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.

Which organization bills Medicare for Hannah Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Hannah Williams reassigns Medicare benefits to University Of Arkansas For Medical Sciences (Little Rock, AR). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Hannah Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Hannah Williams accept?

Health plans from Arkansas Blue Cross and Blue Shield, Health Advantage and Octave list Hannah 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 Hannah Williams was last updated on August 4, 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.