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DANISSA JANELLE WILLIAMS MD
NPI 1164041000
Family Medicine in Harrison, NY

Active since April 10, 2020PECOS EnrolledAccepts Medicare Assignment
600 MAMARONECK AVE STE 301, HARRISON, NY 10528(914) 723-8100(914) 849-7781 Get Directions Write a Review

NPPES record last updated: May 30, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 30, 2025, Apr 10, 2020 (2 updates tracked since 2020).

About Danissa Janelle Williams Md NPPES

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

DANISSA JANELLE WILLIAMS MD (NPI 1164041000) is an individual family medicine provider in Harrison, New York, licensed in New York (321728) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS, is affiliated with White Plains Hospital Center, and maintains a secondary practice location in Flemington.

NPPES Registry Identity

NPI1164041000
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDANISSA JANELLE WILLIAMSCredential: MD
Location Address600 MAMARONECK AVE STE 301Harrison, NY 10528-1613
Mailing Address600 Mamaroneck Ave Ste 301Harrison, NY 10528-1613 · (914) 723-8100 · Fax (914) 849-7781
Phone(914) 723-8100
Fax(914) 849-7781
Sole ProprietorNo
Medical School CMSCity University Of New York School Of MedicineGraduated 2020
Enumeration DateApril 10, 2020
Last NPPES UpdateMay 30, 20252 updates tracked since enumeration
NPPES CertifiedMay 30, 2025
✔ NPI 1164041000 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in NY · 321728
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
600 MAMARONECK AVE STE 301, Harrison, NY 10528
Open in Google Maps ↗

Secondary Practice Location 1

Location 12100 Wescott DrFlemington, NJ 08822-4604 · Phone (908) 788-6100

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

Danissa Janelle 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 ID9436503125
PECOS Enrollment IDI20230928003927
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 10

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 low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
95 services83 patients
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.
62 services51 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
41 services39 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
21 services21 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
18 services18 patients
Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit G0438
An annual wellness visit is a yearly appointment with your doctor to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's an opportunity to discuss your health status and goals and get a plan tailored for you.
18 services18 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

White Plains Hospital Center

Acute Care Hospitals · White Plains, NY
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330304
Location41 East Post R0adWhite Plains, NY 10601 · Westchester County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10528 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
$105.06 typical visit price
range $67.40 – $203.53
Typical copayment $26.26 (range $16.85 – $50.88)
Most-billed visit code 99203
Established Patient
$117.62 typical visit price
range $21.66 – $164.45
Typical copayment $29.40 (range $5.41 – $41.11)
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

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

AMANDA KANTOR FNP-C
Nurse Practitioner (Family)
600 MAMARONECK AVE STE 301
HARRISON, NY 10528
Westchester County (914) 723-8100

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 Danissa Williams's NPI number?

The NPI number for Danissa Williams is 1164041000. It was assigned to this individual provider in the NPPES registry on April 10, 2020.

Where is Danissa Williams located?

Danissa Williams practices at 600 Mamaroneck Ave Ste 301, Harrison, NY 10528. The listed phone number is (914) 723-8100.

What is Danissa Williams's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Danissa Williams enrolled in Medicare?

Yes. Danissa 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.

Is Danissa Williams affiliated with any hospitals?

According to CMS data, Danissa Williams is affiliated with White Plains Hospital Center.

When was this NPI record last updated?

The NPPES record for Danissa Williams was last updated on May 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.