DR. AVA WILLIAMS DNP, CRNP, FNP-BC
NPI 1841693405
Nurse Practitioner - Family in Columbia, MD

Active since September 26, 2014PECOS EnrolledAccepts Medicare Assignment
5850 WATERLOO RD STE 140, COLUMBIA, MD 21045(443) 325-7282 Get Directions Write a Review

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

Record update history: May 5, 2025, Mar 9, 2025, Feb 23, 2023 and 1 more (4 updates tracked since 2021).

About Dr. Ava Williams Dnp, Crnp, Fnp-bc NPPES

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

DR. AVA WILLIAMS DNP, CRNP, FNP-BC (NPI 1841693405) is an individual family provider in Columbia, Maryland, licensed in Maryland (R205564) and active in the NPI registry since September 2014. She is enrolled in Medicare PECOS, maintains a secondary practice location in Rockville, and is a graduate of Other (2021).

NPPES Registry Identity

NPI1841693405
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameDR. AVA WILLIAMSCredential: DNP, CRNP, FNP-BC
Location Address5850 WATERLOO RD STE 140Columbia, MD 21045-1944
Mailing Address5850 Waterloo Rd Ste 140Columbia, MD 21045-1944 · (443) 325-7282 · Fax (833) 438-1629
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateSeptember 26, 2014
Last NPPES UpdateFebruary 24, 20264 updates tracked since enumeration
NPPES CertifiedFebruary 24, 2026
NPI 1841693405 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License Licensed in MD · R205564
Also ListedRegistered NurseTaxonomy 163W00000X · License R205564 (MD)
5850 WATERLOO RD STE 140, Columbia, MD 21045

Secondary Practice Location 1

Location 1799 Rockville PikeRockville, MD 20852-1136 · Phone (301) 340-2683

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. Ava Williams Dnp, Crnp, Fnp-bc 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 ID4183099534
PECOS Enrollment IDI20230417001985, I20230419000198
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 6

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.
53 services43 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.
38 services36 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
24 services24 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
17 services17 patients
Influenza vaccine, inactivated 90653
The Influenza vaccine, inactivated, is a shot given to protect against the flu. It contains killed virus particles that help your body build immunity to the flu. It's recommended annually to keep your protection up-to-date. It's safe for ages 6 months and up.
15 services15 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.
14 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21045 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 14

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

Prosthetic/Orthotic Supplier
5850 WATERLOO RD STE 140
COLUMBIA, MD 21045
Psychologist
5850 WATERLOO RD STE 140
COLUMBIA, MD 21045
Nurse Practitioner (Family)
5850 WATERLOO RD STE 140
COLUMBIA, MD 21045
Nurse Practitioner (Psychiatric/Mental Health)
5850 WATERLOO RD STE 140
COLUMBIA, MD 21045
Health and Wellness Coach
5850 WATERLOO RD STE 140
COLUMBIA, MD 21045
Clinic/Center (Primary Care)
5850 WATERLOO RD STE 140
COLUMBIA, MD 21045
Community Based Residential Treatment Facility, Intellectual and/or Developmental Disabilities
5850 WATERLOO RD STE 140
COLUMBIA, MD 21045
Registered Nurse
5850 WATERLOO RD STE 140
COLUMBIA, MD 21045

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 Ava Williams's NPI number?

The NPI number for Ava Williams is 1841693405. It was assigned to this individual provider in the NPPES registry on September 26, 2014.

Where is Ava Williams located?

Ava Williams practices at 5850 Waterloo Rd Ste 140, Columbia, MD 21045. The listed phone number is (443) 325-7282.

What is Ava Williams's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Ava Williams enrolled in Medicare?

Yes. Ava 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 Ava Williams was last updated on February 24, 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.