NYREE WILLIAMS
NPI 1205407145
Nurse Practitioner - Psychiatric/Mental Health in Baltimore, MD

Active since July 01, 2021PECOS EnrolledAccepts Medicare Assignment
22 S GREENE ST, BALTIMORE, MD 21201(410) 328-1219 Get Directions Write a Review

NPPES record last updated: July 1, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Nyree Williams NPPES

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

NYREE WILLIAMS (NPI 1205407145) is an individual psychiatric/mental health provider in Baltimore, Maryland, licensed in Maryland (R226107) and active in the NPI registry since July 2021. She is enrolled in Medicare PECOS and is a graduate of Other (2021).

NPPES Registry Identity

NPI1205407145
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameNYREE WILLIAMS
Location Address22 S GREENE STBaltimore, MD 21201-1544
Mailing Address4916 Arborgate CirHalethorpe, MD 21227-2560 · (443) 509-2151
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateJuly 1, 2021
NPPES CertifiedJuly 1, 2021
✔ NPI 1205407145 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in MD · R226107
22 S GREENE ST, Baltimore, MD 21201

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

Nyree Williams 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 ID1153711577
PECOS Enrollment IDI20211129001796
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 Reassignments

2

Medicare enrollment records show Nyree Williams reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Psychiatric/Mental Health
1009 FREDERICK RD
Catonsville, MD 21228
  • Reassigned Medicare billing, Maryland enrollment
  • 8 clinicians in this Medicare group
Psychiatry
6501 N CHARLES ST
Baltimore, MD 21204
  • Reassigned Medicare billing, Maryland enrollment
  • Medicare enrollment name: Sheppard Pratt Physicians PA
  • 187 clinicians in this Medicare group

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

Areas of Expertise CMS Part B claims 5

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.
235 services38 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
93 services19 patients
Psychotherapy with evaluation and management visit, 30 minutes 90833
Psychotherapy with evaluation and management is a 30-minute session where a mental health professional talks with you about your concerns and feelings. They assess your mental health, provide support, and manage your treatment plan to help improve your well-being.
53 services11 patients
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more 99308
A follow-up nursing facility visit per day is a daily check-up service provided by healthcare professionals. It lasts around 15 minutes and involves assessing your health status, monitoring your recovery progress, and addressing any concerns you may have about your health or treatment.
50 services18 patients
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309
A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.
39 services14 patients

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
$94.08 typical visit price
range $60.73 – $183.44
Typical copayment $23.52 (range $15.18 – $45.86)
Most-billed visit code 99203
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.

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.

Internal Medicine
22 S GREENE ST
BALTIMORE, MD 21201
Student in an Organized Health Care Education/Training Program
22 S GREENE ST, MEDICINE, N3E09
BALTIMORE, MD 21201
Physician Assistant (Medical)
22 S GREENE ST, G2K36
BALTIMORE, MD 21201
Pediatrics (Adolescent Medicine)
22 S GREENE ST
BALTIMORE, MD 21201
Nurse Practitioner (Acute Care)
22 S GREENE ST, SUITE S4D07
BALTIMORE, MD 21201
Student in an Organized Health Care Education/Training Program
22 S GREENE ST, N3E09
BALTIMORE, MD 21201
Internal Medicine
22 S GREENE ST
BALTIMORE, MD 21201
Internal Medicine
22 S GREENE ST, N3E09
BALTIMORE, MD 21201

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 Nyree Williams's NPI number?

The NPI number for Nyree Williams is 1205407145. It was assigned to this individual provider in the NPPES registry on July 1, 2021.

Where is Nyree Williams located?

Nyree Williams practices at 22 S Greene St, Baltimore, MD 21201. The listed phone number is (410) 328-1219.

What is Nyree Williams's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Nyree Williams enrolled in Medicare?

Yes. Nyree 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 organizations bill Medicare for Nyree Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nyree Williams reassigns Medicare benefits to 2 organizations: Triumph Behavioral Health LLC (Catonsville, MD) and Sheppard Pratt Physicians, P.A. (Baltimore, MD). Each 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 Nyree Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Nyree Williams was last updated on July 1, 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.