DR. ARIA KALLISTA WILLIAMS DO
NPI 1154566412
Internal Medicine - Infectious Disease in Middletown, NY

Q: What is Aria Williams's NPI number?

The NPI number for Aria Williams is 1154566412. It was assigned to this individual provider in the NPPES registry on December 15, 2008.

Q: What is Aria Williams's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Q: When was this NPI record last updated?

The NPPES record for Aria Williams was last updated on November 27, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.

Active since December 15, 2008PECOS EnrolledAccepts Medicare Assignment

97.03/100

CMS Quality Rating

707 E MAIN ST, MIDDLETOWN, NY 10940(845) 333-7575(845) 333-7202 Get Directions Write a Review

NPPES record last updated: November 27, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Dr. Aria Kallista Williams Do NPPES

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

DR. ARIA KALLISTA WILLIAMS DO (NPI 1154566412) is an individual infectious disease provider in Middletown, New York, licensed in New York (271912) and active in the NPI registry since December 2008. She is enrolled in Medicare PECOS, is affiliated with Cape Cod Hospital, and maintains a secondary practice location in Harris.

NPPES Registry Identity

NPI1154566412

Entity TypeIndividualFemale

Primary Taxonomy207RI0200X

Provider Legal NameDR. ARIA KALLISTA WILLIAMSCredential: DO

Location Address707 E MAIN STMiddletown, NY 10940-2650

Mailing Address707 E Main StMiddletown, NY 10940-2650 · (845) 333-7575 · Fax (845) 333-7202

Phone(845) 333-7575

Fax(845) 333-7202

Sole ProprietorNo

Medical School CMSOtherGraduated 2018

Enumeration DateDecember 15, 2008

Last NPPES UpdateNovember 27, 2023

NPPES CertifiedSeptember 15, 2020

✔ NPI 1154566412 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RI0200X

License✔ Licensed in NY · 271912

Definition

An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.

707 E MAIN ST, Middletown, NY 10940

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Secondary Practice Location 1

Location 168 Harris Bushville RdHarris, NY 12742 · Phone (845) 333-7575 · Fax (845) 333-7201

Other Identifiers 1

Medicaid03717315NY

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica, Sanford Health Plan.Insurance ›

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. Aria Kallista Williams Do 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 ID7517112683

PECOS Enrollment IDI20131115000557, I20200101000006, I20230207003257

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 8

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.

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.

291 services145 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

189 services94 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

136 services130 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

92 services90 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.

29 services23 patients

Telephone medical discussion with physician, 21-30 minutes 99443

This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.

22 services17 patients

Hospital Affiliations CMS Care Compare 4

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

Cape Cod Hospital

Acute Care Hospitals · Hyannis, MA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220012

Location27 Park StreetHyannis, MA 02601 · Barnstable County

Emergency services Birthing friendly

Garnet Health Medical Center

Acute Care Hospitals · Middletown, NY

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330126

Location707 East Main StreetMiddletown, NY 10940 · Orange County

Emergency services Birthing friendly

Garnet Health Medical Center Catskills

Acute Care Hospitals · Harris, NY

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330386

Location68 Harris Bushville Road, P O Box 800Harris, NY 12742 · Sullivan County

Emergency services Birthing friendly

Chi St Alexius Health

Acute Care Hospitals · Bismarck, ND

3/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number350002

Location900 E BroadwayBismarck, ND 58501 · Burleigh County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10940 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

$141.77 typical visit price

range $61.88 – $187.05

Typical copayment $35.44 (range $15.47 – $46.76)

Most-billed visit code 99204

Established Patient

$108.56 typical visit price

range $19.92 – $151.94

Typical copayment $27.14 (range $4.98 – $37.98)

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

97.03/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

87.17

Promoting Interoperability

100

Improvement Activities

Leave this field empty

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.

KRASSIMIR ATANASSOV MD

Surgery (Surgical Critical Care)