DR. ADRIENNE A. WILLIAMS PH.D.
NPI 1659527877
Psychologist - Clinical in Baltimore, MD

Q: What is Adrienne Williams's NPI number?

The NPI number for Adrienne Williams is 1659527877. It was assigned to this individual provider in the NPPES registry on August 8, 2008.

Q: What is Adrienne Williams's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Q: When was this NPI record last updated?

The NPPES record for Adrienne Williams was last updated on February 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months 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.

Active since August 08, 2008PECOS EnrolledAccepts Medicare Assignment

29 S PACA ST, LOWER LEVEL, BALTIMORE, MD 21201(410) 328-6802 Get Directions Write a Review

NPPES record last updated: February 17, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Dr. Adrienne A. Williams Ph.d. NPPES

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

DR. ADRIENNE A. WILLIAMS PH.D. (NPI 1659527877) is an individual clinical provider in Baltimore, Maryland, licensed in Maryland (04686) and active in the NPI registry since August 2008. She is enrolled in Medicare PECOS, maintains a secondary practice location in Chicago, and is a graduate of Duke University School Of Medicine (2006).

NPPES Registry Identity

NPI1659527877

Entity TypeIndividualFemale

Primary Taxonomy103TC0700X

Provider Legal NameDR. ADRIENNE A. WILLIAMSCredential: PH.D.

Location Address29 S PACA ST, LOWER LEVELBaltimore, MD 21201-1771

Mailing Address29 S Paca St, Lower LevelBaltimore, MD 21201-1771 · (410) 328-6802

Phone(410) 328-6802

Sole ProprietorNo

Medical School CMSDuke University School Of MedicineGraduated 2006

Enumeration DateAugust 8, 2008

Last NPPES UpdateFebruary 17, 2026

NPPES CertifiedFebruary 17, 2026

✔ NPI 1659527877 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 5

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

Licenses✔ Licensed in MD · 04686✔ Licensed in MI · 6301013336✔ Licensed in IL · 071008916

Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

Also ListedPsychologistTaxonomy 103T00000X · License 04686 (MD), 6301013336 (MI)

Also ListedPsychologist · Cognitive & BehavioralTaxonomy 103TB0200X · License 04686 (MD), 6301013336 (MI)

Also ListedPsychologist · HealthTaxonomy 103TH0004X · License 04686 (MD), 6301013336 (MI)

Also ListedPsychologist · Group PsychotherapyTaxonomy 103TP2701X · License 04686 (MD), 6301013336 (MI)

29 S PACA ST, Baltimore, MD 21201

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Secondary Practice Location 1

Location 11740 W Taylor StChicago, IL 60612-7232 · Phone (312) 996-4300

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. Adrienne A. Williams Ph.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 ID2961561329

PECOS Enrollment IDI20150326000289

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21201 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

$183.44 typical visit price

range $60.73 – $183.44

Typical copayment $45.86 (range $15.18 – $45.86)

Most-billed visit code 99205

Established Patient

$106.59 typical visit price

range $19.60 – $149.17

Typical copayment $26.64 (range $4.90 – $37.29)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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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.

AMNA CHOUDRY

Student in an Organized Health Care Education/Training Program

29 S PACA ST
BALTIMORE, MD 21201

Baltimore City (410) 328-5012

STEPHANIE LYNN DAVIS MD

Family Medicine

29 S PACA ST, LOWER LEVEL
BALTIMORE, MD 21201

Baltimore City (410) 328-8792

DANIELLE L BROWN MD

Student in an Organized Health Care Education/Training Program

29 S PACA ST
BALTIMORE, MD 21201

Baltimore City (410) 328-5012

DR. SHARON ELYSE FEINSTEIN MD

Family Medicine

29 S PACA ST
BALTIMORE, MD 21201

Baltimore City (410) 328-6792

UNIVERSITY OF MARYLAND FAMILY MEDICINE ASSOCIATES, P.A.

Specialist

29 S PACA ST
BALTIMORE, MD 21201

Baltimore City (410) 328-6792

SHANA O NTIRI MD

Family Medicine

29 S PACA ST
BALTIMORE, MD 21201

Baltimore City (410) 328-5012

KRISTIN MICHELLE POWELL REAVIS MD

Family Medicine

29 S PACA ST
BALTIMORE, MD 21201

Baltimore City (667) 214-1800

MALLIKA YAVATKAR

Student in an Organized Health Care Education/Training Program

29 S PACA ST
BALTIMORE, MD 21201

Baltimore City (503) 481-3423

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 Adrienne Williams's NPI number?

The NPI number for Adrienne Williams is 1659527877. It was assigned to this individual provider in the NPPES registry on August 8, 2008.

Where is Adrienne Williams located?

Adrienne Williams practices at 29 S Paca St Lower Level, Baltimore, MD 21201. The listed phone number is (410) 328-6802.

What is Adrienne Williams's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Adrienne Williams enrolled in Medicare?

Yes. Adrienne 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.

When was this NPI record last updated?

The NPPES record for Adrienne Williams was last updated on February 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months 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.